Sipan 32 And 34 - S

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CATALOG PROCESS MEASUREMENT TECHNOLOGY SIPAN LIQUID ANALYSIS DW PW HACH LANGE services. Wastewater. Made-to-measure solutions for wastewater analysis in the municipal and industrial sectors. Ordering, information and advice: [email protected] Drinking water. Assured safety — analysis for suppliers and consumers. Process water. Process and laboratory analysis for special analytical problems and production conditions. Seminars and workshops: further training and exchange of experience for analysis in practice. On-site support by our technical field staff. Quality assurance, complete with standard solutions, instrument checks and test solutions. www.hach-lange.com up to date and secure, with downloads, information and shop. Assurance of legal compliance, together with environmental protection through collection of used reagents. Reliable operation of all instruments thanks to flexible service and maintenance contracts. Regular customer information by post and email. SIPAN 32 and 34 Controllers and Sensors for pH, Conductivity and O2 HACH LANGE GMBH Willstätterstraße 11 D-40549 Düsseldorf Tel. + 49 (0) 2 11 52 88-0 Fax + 49 (0) 2 11 52 88-143 [email protected] www.hach-lange.com DOC033.52.00421.Jan05 WW Core capabilities. Welcome to HACH LANGE! Now you have the new SIPAN catalog. Liquid analyzers of the SIPAN series for continuous measurement of pH value/redox potential, conductivity and dissolved oxygen supply important data to process control systems or process control devices. HACH LANGE is the market leader for Liquid Analytics in the Water/Waste water sector. With product characteristics such as explosion protection, etc. SIPAN products will ideally complement the existing HACH LANGE product lines to an even more extensive product range. Whether field or laboratory analysis, samplers or process measurement technology, HACH LANGE stands for the total spectrum of water analysis - from visual methods to comprehensive systems of reagents, measurement technology and accessories. Solutions from HACH LANGE are tailor-made for every application in wastewater, drinking water or process water - for reliable control of operational processes and monitoring of legally prescribed limit values. HACH LANGE stands for water analysis from a single source. For you, this means more products and applications, more experience and on-site support than ever before Your water-analysis team at Chapter Table of contents Liquid Analysis 2 3 4 Analyzer for Conductivity SIPAN 32 and SIPAN 32X SIPAN 34 Analyzer for pH Value and Redox Potential SIPAN 32 and SIPAN 32X SIPAN 34 Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X SIPAN 34 HACH LANGE Analyzer for Conductivity SIPAN 32 and SIPAN 32X 2/2 2/2 2/2 2/4 2/5 2/9 2/11 2/12 2/13 Overview Benefits Application Design Function Technical data Ordering data Dimensional drawings Schematics HACH LANGE Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X ■ Benefits Flüssigkeitsanalysengeräte ■ Overview The SIPAN 32 and SIPAN 32X measuring equipment is designed to determine the electric conductivity of aqueous or organic solutions. Usefulness of SIPAN 32 and SIPAN 32X • Two-wire connection • Sensor diagnosis for temperature measurement • Automatic measured-value hold at calibration • Logbook to document all important events • Local control following NAMUR • PROFIBUS PA or HART communication available • Available as Ex variant (EEx ib [ia]) • Field housing IP65 • Second, passive output, freely parameterizable (for temperature (analog) or pre-warning/purging function/limit (binary)). ■ Application The conductivity measuring range extends over 8 powers of ten from ultra-pure water (approx. 0.040 µS/cm) up to very high conductivities (approx. 2500 mS/cm). This wide range is covered by three measuring procedures (see Fig.): • the two-electrode procedure (2EL sensor), • the four-electrode procedure (4EL sensor) and • the inductive procedure (IND sensor). The measuring ranges as well as the fields of application of the three procedures overlap to a certain extent. SIPAN 32 for conductivity SIPAN 32 and SIPAN 32X measuring equipment, selection table according to fields of application 2/2 HACH LANGE Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X Two
electrode procedure (2EL sensor) The two-electrode procedure (2EL sensor) is used to measure the conductivity of ultra-pure water and highly diluted aqueous solutions from 0.04 µS/cm to 25 000 µS/cm where contamination and deposits on the electrodes extending into the measured medium are not expected (higher conductivities - above 5 000 µS/cm - lead to polarization effects and thus to errors in measurement). Media with conductivities < 5 µS/cm (VE water, ultra-pure water) exhibit a distinct non-linear temperature dependence. The analyzer is therefore provided with a temperature compensation function for ultra-pure water. Applications • Steam generation (boiler feedwater, condensation) • Semiconductor manufacture (ultra-pure water, chip cleaning) • Water processing (reverse osmosis, ion exchanger) • Leak testing of heat exchangers • Drinking water and surface water. Product characteristics • Measurement of very small ranges (< 0.1 µS/cm) by using stainless steel sensors resistant to pressure and corrosion with a concentric electrode arrangement, with integrated thermom-eter • Calibration of measurement is unnecessary for 2EL concentric sensors (even following replacement of sensor); if needed, a temperature calibration has to be carried out • Low price for stainless steel pin electrodes with plastic shaft with or without temperature compensation for measuring ranges ≥ 2 µS/cm • Compact electrode, as combination with a pH/redox measurement in one fitting • All versions of the two-electrode sensors with explosion protection for zone 1. Four
electrode procedure (4EL sensor) The four-electrode procedure is used in media of average conductivity from 0.01 mS/cm to 500 mS/cm. The advantages of this procedure are the insensitivity of the sen-sor towards contamination and the avoidance of polarization errors. Product characteristics • Four concentric ring electrodes - potted level with the shaft - thus particularly resistant to contamination • Automatic compensation of contamination • Sensors with integrated thermometer for automatic temperature compensation • Particularly compact design possible even in combination with a pH/redox measurement. Inductive procedure (IND sensor) The inductive procedure can be used to measure the conductivity of small to very high values from 1 µS/cm to approx. 2 500 mS/cm. This procedure is particularly suitable for the measurement of corrosive media since there is no direct contact between the electrodes and the medium. In addition to output of the conductivity, it is also possible to output a display in percentage by weight following automatic conversion (determination of concentration). Applications • Determination of concentrations of brines, alkalis and acids, in particular sulphuric acid and oleum • Corrosive industrial waste water • CIP control • Regeneration of concentration • Phase separation of product/water mixtures • Product monitoring in filling and cleaning plants. Product characteristics • Extremely wide dynamic range (> 106) with one type of sensor • Three types of sensor manufactured from the high-tech polymer PEEK with integrated thermometer and with special leak tightness of sensor and thermometer since moulded from one piece. Permanent overload capacity 10 bar at +130 °C • FEP sensor with large wall thickness for measurements in highly concentrated acids and alkalis • DURAN glass sensor absolutely resistant to diffusion in hot, super-saturated acids (oleum), resistant to organic solvents, with integrated thermometer • Some versions with explosion protection for zone 1. In addition to output of the conductivity, it is also possible to output a display in percentage by weight following automatic conversion. Applications • Municipal and industrial sewage treatment plants • Service water and waste water • Drinking water purification • Cooling water • Determination of concentrations of brines, alkalis and acids • Monitoring of concentrates • Bleaching and washing baths. HACH LANGE 2/3 Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X ■ Design Ex zone 0*) Ex zone 1**) Ex zone 2**) Not Ex zone Not Ex zone SIPAN 32 not Ex zone SIPAN 32X Ex zone 1 Ex zone 2 Keyboard Display Mains EPROM Conductivity 4 ... 20 mA Isolating power supply HART interface 4 ... 20 mA EEPROM Conductivity Mains A/D D/A Temperature Temperature 0/4 ... 20 mA or Limit signal (0/4) / 20 mA or Cleaning signal (0/4) / 20 mA or Isolating power supply 0/4 ... 20 mA Warning (0/4) / 20 mA D/D PROFIBUS PA DP/PA coupler DP/PA link Basic version Option External device *) Only sensors with ATEX approval and in conjunction with SIPAN 32X **) Only with SIPAN 32X SIPAN 32 and SIPAN 32X analyzers, mode of operation The SIPAN 32 and SIPAN 32X measuring equipment consist of: • a sensor • a flow, immersion or replacement fitting • a temperature sensor (Pt1000 or Pt100) • a SIPAN 32 or SIPAN 32X analyzer. SIPAN 32 and SIPAN 32X are analyzers of the new two-wire generation with state-of-the-art micro-power technology with microprocessor control and multi-segment display. 2/4 HACH LANGE They contain the analog and digital data processing functions, depending on the version, for the signal delivered by the sensor. The SIPAN 32 and SIPAN 32X analyzers are available in field housings. A SIPAN 32 or SIPAN 32X analyzer can be parameterized for all measuring ranges. Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X Conductivity Examples of the dependence of conductivity on the concentration are shown in the figure. µScm-1 160 Either Pt100 or Pt1000 thermometers can be connected to the analyzers. The measurement is designed as a two- or three-wire system. The type of thermometer connected is recognized automatically. CaCl2 NaCl Na3PO4 KCl CaSO4 Na2SO4 KNO3 HART or PROFIBUS PA interface 40 Conductivity 60 80 Inputs Ca(OH)2 100 Options MgCl2 Na2CO3 H2SO4 Conductivity Basic analyzer HCl HNO3 NaOH 120 Temperature compensation 140 With all three measuring procedures (2EL, 4EL and IND), a squarewave or sine-wave AC voltage is applied to the sensors. The magnitude and frequency depend on the measuring procedure. The current output by the sensor is a measure of the conductivity of the medium. The conductivity of an electrolyte is a linear function of the concentration at a constant temperature since the valency - and also the ion mobility in dilute aqueous solutions - remain constant. 200 The signals delivered by the analog input amplifiers are processed into a temperature-compensated value by the digital data processing function. 180 Measured
value processing 20 Temperature 0 Outputs 0 Analog output 4 ... 20 mA with alarm > 21 mA 2nd analog output for temperature or contact for flushing function or limit or warning (not for PROFIBUS PA) Functions ■ Function Measuring procedure for conductivity measurements The conductivity of liquids is based on the electrolytic dissociation of acids, bases or salts in water into electrically charged particles (ions). The magnitude of the electrical conductivity K is the reciprocal value of the electric resistance of the solution. The dimension for electric conductivity is S/m (Hach Lange per meter). The conductivity of a dilute electrolyte solution depends on: • The number of ions in the solution, i.e. its concentration • The number of unit charges capable of being transported by each ion, i.e. the ion charge number • The migration velocity or mobility of the ions. 10 20 30 40 50 Concentration 60 70 80 90 100 mg·l-1 Conductivity of dilute solutions at 18 °C The total conductivity of a solution is the sum of the conductivities of all ion pairs present in the solution and is thus usually a non-specific variable. In practice, however, the concentration of a component can be determined directly from the conductivity of a solution if • only one substance is present in the solution • all constituents of the solution change in approximately the same ratio • the variation of one constituent of the solution compared to that of the others is so predominant that it alone practically determines the conductivity. In the case of concentrated solutions of electrolyte there is usually no linear relationship between the conductivity of the solution and the concentration of the electrolyte. The conductivity frequently decreases as the concentration increases since the degree of dissociation drops on the one hand and the ion mobility is reduced on the other because of inter-ionic interactions. A concentration measurement can nevertheless be carried out if it is only made in a reliable range, i.e. where the conductivity either rises or falls. This assumes that the relationship between conductivity and concentration of the electrolyte is known. HACH LANGE 2/5 Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X Three different measuring procedures enable measurement of the conductivity individually adapted to the task and the concentration of the electrolyte: • Two-electrode procedure • Four-electrode procedure • Inductive procedure without electrodes. 0,8 S·cm-1 0,7 0,6 The conductivity measuring equipment consists of the following basic components: • Conductivity sensor • Temperature sensor to compensate the influence of temperature • Analyzer. HCl Conductivity 0,5 KOH 0,4 0,3 H2SO4 Two
electrode procedure 0,2 KCl 0 10 A square-wave AC voltage is applied to the two current electrodes. The current flowing through the solution is inversely proportional to the electrical resistance and directly proportional to the conductivity. NaOH 0,1 0 HNO3 20 30 40 50 60 70 80 90 100 Concentration (% w/w) Analyzer SIPAN 32, SIPAN 32X Conductivity of concentrated solutions at 18 °C The conductivity of electrolytes is highly temperature-dependent since both the number of dissociated modules and the ion mobility are highly temperature-dependent. A reference temperature of 25 °C is therefore selected and the measured conductivity values are corrected accordingly using the temperature coefficient α. U I The temperature coefficient α depends on • the composition of the electrolyte solution • the concentration of the solution. U I Values from 1 to 6%/K are possible. The figure shows that the resistance depends non-linearly on the temperature for an NaCl solution. Measured medium Two-electrode procedure, mode of operation Four
electrode procedure 12 A square-wave AC voltage is applied to two current electrodes.The four-electrode procedure uses two current electrodes and two voltage electrodes. A square-wave AC voltage is applied to the current electrodes, and the current flowing through the solution is inversely proportional to the electrode resistance and directly proportional to the conductivity. The AC voltage is measured at the voltage electrodes and used to control the output voltage at the current electrodes. The generation of a deposit on the sensors is thus taken into account and compensated. 3 mg/l x 103 W 10 8 5 mg/l Analyzer SIPAN 32, SIPAN 32X 6 7 mg/l 4 I 10 mg/l U I 15 mg/l 2 U 0 25 mg/l 10 20 U 20 mg/l 30 40 50 60 70 80 I 90 °C Dependence of the resistance of an NaCl solution on the temperature at various concentrations Measured medium Four-electrode procedure, mode of operation 2/6 HACH LANGE I Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X Inductive procedure The sensor consists of two coils which are positioned on toroidal tape cores. The primary coil is driven by a sinusoidal AC voltage. An AC voltage is induced in the liquid loop (= measured medium) which constitutes the secondary winding of this "transformer". In the case of electrically conducting liquids, a current flows which is proportional to their conductivity. The liquid loop is simultaneously the primary winding of the secondary coil which operates as a current transformer. This current is rectified in-phase and amplified. Analyzer SIPAN 32, SIPAN 32X U Measured medium I U I Inductive procedure, mode of operation Special characteristics of SIPAN 32 • Two-wire analyzer with state-of-the-art micropower technology • Extremely simple field installation with only two wires • Menu-based operation with understandable symbols (based on IEC) • Complete local operation with directly accessible keypad with 8 keys and large, clearly-arranged multi-segment display • Display of S/cm, mS/cm, µS/cm, µS/m, MΩcm, kΩcm, % w/w, H2SO4, oleum, HNO3, HCl, HBr, NaOH, NaCl, KOH • Direct output of concentration values instead of conductivity (19 stored material tables) • All measuring procedures 2EL, 4EL and IND are available • Additional permanent temperature display selectable in °C or °F • Logbook with entry of faults or calibration procedures with date and time • Non-linear ultra-pure water temperature compensation for conductivity • Automatic HOLD function • Comprehensive fault diagnosis system • 3 operating levels with coded protection for monitoring, routine and specialists • Selectable tests for display, keys, RAM, EPROM and EEPROM • Output of defined current values for test purposes • Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection • Robust field housing (IP65/NEMA 4X) with four cable screwed glands for easy connection • There are three SIPAN 32 and SIPAN 32X analyzers, each available for the 2EL, 4EL and IND procedures. Special characteristics of SIPAN 32X • Intrinsic safe operation • Analyzers with type of protection "Increased intrinsic safety" EEx ib[ia] can be used within the potentially explosive atmospheres (zone 1, CENELEC). Product characteristics of SIPAN 32, communication variants Device with 4 ... 20 mA output • Electrical isolation (test voltage 500 V AC) • Output signal 4 to 20 mA • Fault or limit output > 20 mA • Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value or contact for flushing function or limit or warning (pre-alarm). Device with 4 ... 20 mA output and HART communication • Completely parameterizable from control system via only one two-wire cable • Additional communication via handheld communicator or PC • Output signal 4 to 20 mA • Fault or limit output > 20 mA (additional digital status transmission via HART protocol) • Central access from control system (OS, ES) to any field device using the SIEMENS PCS 7 control system • Uniform operator control and monitoring of all field units (inclusive linked host units) when using SIMATIC PDM • Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value or contact for flushing function or limit or warning (pre-alarm). Device with PROFIBUS PA communication • SIPAN 32 PA with bus connection to IEC 61158-2 and EN 50170, Part 4 • Fixed bus current limitation in case of fault • Data transmission and device supply via common bus connection • Communication via PROFIBUS PA (Profile B, Version 3.0); thereby all settings completely parameterizable (two synchronous measured values, measuring range, limits, sensor diagnostic, operation simulation, etc.) • Quality indication to the measured values: status with limits • Full measured-value dynamics (discontinuation of measuredrange parameters) • Central access from control system (OS, ES) to each field device using the SIEMENS PCS 7 control system • Uniform operator control and monitoring of all field units (inclusive linked host units) when using SIMATIC PDM • Possibility of a further diagnosis with increased disponibility of plant parts • Savings of installation costs • Interoperability (replacement with parameter conservation possible) • Possibility of automatic tracking of the plant documentation • Possibility of plant optimizing during operation. Parameter sets (option) The analyzer has four parameter sets for four methods that can be set independently from each other. This allows an optimal adaptation in a process when different media have to be measured. Switchover to the correspondent parameter set can be controlled externally (via HART or PROFIBUS PA). HACH LANGE 2/7 Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X SIPAN 32, SIPAN 32X analyzer, display and control panel 2/8 HACH LANGE Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X ■ Technical data Output signal 4 to 20 mA linear to measured value or bilinear to measured value (2 linear partial ranges with a knee at 12 mA), electrically isolated from sensor Max. permissible load in Ω R= (U [power supply] -14) V/0.02 A Power supply 14 V ... 30 V DC, 0.8 W, protection class II (field housing) Logbook Automatic recording of warning and failure messages with date and time, 20 entries with overflow, nonerasable Data storage >10 years (EEPROM) Device self-test Testing of RAM, EPROM, EEPROM, display, keyboard, data can be called on display Display • Measured value Four 16-mm digits • Temperature Four 8-mm digits • Text display Five digits • Others Symbol displays • Input display Symbols Coding 3 coding levels for operations (display level, user level, specialist level) Unit µS/cm, mS/cm, S/cm, µS/m, mS/m, S/m, MΩcm, kΩcm, % w/w Measuring range observe technical data of sensors Measuring span (expansion) Any, but at least 10% of smallest measuring range Clock Software clock Identification CE marking Output range Optionally selectable between 0 and maximum full-scale value Temperature and mechanical stress Measuring range for temperature -50 ... +200 °C, -60 ... +400 °F • Operation Measuring span for temperature Any, but at least 10% of smallest measuring range Temperature compensation with con- Linear TC value, 0 to 10%/K or ductivity measurements non-linear response (max. 5 characteristics), 2 characteristics defined as standard for ultra-pure water and beer Temperature compensation with % w/w Conductivity tables stored for H2SO4, oleum, HNO3, HCl, HBr, NaOH, KOH, NaCl Error limits - Temperature - Mechanical stress • Storage - Temperature - Mechanical stress • Transport - Temperature DIN EN (IEC) 60721-3-3 -20 °C ... +70 °C corresponds to 3K6 but lowest temperature –20 °C without condensation 3M2 DIN EN (IEC) 60721-3-1 -25 °C ... +70 °C corresponds to 1K4 1M2 DIN EN (IEC) 60721-3-2 -25 °C ... +70 °C corresponds to 2K3 • with conductivity measurement < 2.0% of measuring range (at rated conditions) • with temperature compensation < 0.5% of measured value (for pure liquids) Water protection DIN EN (IEC) 60529, IP65 for field devices Influencing effects on mea
sured value According to DIN IEC 746, Part 1 EMC DIN EN (IEC) 61326 and NAMUR NE 21 • Repeatability <0.2% of full-scale value Electrical safety DIN EN (IEC) 61010-1 • Linearity <0.5% of full-scale value Quality assurance system DIN ISO 9001/EN 29000 • Ambient temperature <0.2%/10 K Material of field housing • Power supply <0.1% Macrolon (polycarbonate + 20% glass fiber) • Load <0.1%/100 Ω Permissible relative humidity 10 ... 95%, no condensation <0.2% of full-scale value Electrical isolation Input and output are isolated Test voltage 500 V AC, 50 Hz, 1 min Weight 2.5 kg • Zero error - Mechanical stress 2M2 HACH LANGE 2/9 Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X Options Communication 2nd passive analog output 0/4 to 20 mA linear to temperature, or contact for flushing function or limit or warning (pre-alarm) SIPAN 32X with explosion protection Explosion protection to ATEX Guideline 94/9/EC, DIN EN 50014 and DIN EN 50020 Type of protection “Intrinsic safety”, II (1) 2 G EEx ib[ia] IIC T4 Permissible ambient temperature during operation 20 ... +60 °C Output signal circuit With type of protection Intrinsic safety only for connection to certified intrinsically-safe circuits with the following maximum values: Ui = 30 V, Ii = 100 mA, Pi = 750 mW, Ri = 300 Ω Measured medium Temperature range °C Possible measuring ranges % w/w H2SO4 -20 ... +120 0 ... 34 32 ... 85 92 ... 99.5 Oleum +10 ... +120 +10 ... +60 12 ... 45 60 ... 70 HNO3 -20 ... +55 0 ... 30 34 ... 85 92 ... 95 0 ... 12 0 ... +100 HCl -20 ... +55 0 ... +100 0 ... +100 0 ... 26 18 ... 32 NaCl 0 ... +100 0 ... 26 KOH 0 ... +100 0 ... 34 32 ... 42 HBr -20 ... +55 0 ... 30 39 ... 52 Programmed data of measured medium in SIPAN 32 for the concentration display (the possible measuring ranges are maximum indications and are influenced by the temperature) HACH LANGE PC/laptop or HART communicator with SIPAN 32 and SIPAN 32X analyzer Load with connection of HART modem 250 ... 500 Ω Load with connection of HART communicator 250 ... 500 Ω Line Two-wire, screened: ≤ 1.5 km Protocol HART, version 5.1 Option PROFIBUS PA Power supply, bus voltage Supplied by bus, 9 to 32 V (non Ex), 9 to 24 V for intrinsically safe operation Power consumption of the unit I = 13 mA ± 1 mA • Max. current increase in case of error I + 3 mA (electronic current limitation) (Imax. = 16 mA) I + 27 mA (additional fuse) (Imax. = 40 mA) • Communication PROFIBUS PA (IEC 61158 CPF3 CP3/2) Physical bus: IEC 61158-2 MBP(-IS) Polarity independent • C2 connection 4 connections to Master Class 2 are supported • Unit profile PROFIBUS PA, Profile B, Version 3.0 • Unit address 126 at delivery mA 20 12 0 ... 16 24 ... 42 0 ... 12 NaOH 2/10 Option HART 4 KA KK KA Start-of-scale value KK Knee KE Full-scale value Linear and bent characteristics in SIPAN 32 analyzer KE Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X Ordering data Order No. SIPAN 32 analyzer two
wire system, for conductivity measure
ment Measuring procedure: Two
electrode procedure (2EL) Four
electrode procedure (4EL) Inductive procedure (IND) microprocessor-controlled, membrane keyboard with LC display, menu control, logbook, concentration display, temperature compensation, 1 parameter set, in field housing 7MA 2 0 4 0 7MA 2 1 4 0
7MA 2 2 4 0
8A ■ Standard version, 1 signal output: 4 to 20 mA without interface 1 signal output: 4 to 20 mA, with HART interface 2 signal outputs, with HART interface: • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to 20 mA temperature or switching function for limit or flushing or warning PROFIBUS PA, 4 parameter sets A B C D Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on request. Please order together with the analyzer in cleartype. Order No. Isolating power supply (see FI 01, Part 6, for technical data) Ordering data Order No. SIPAN 32X analyzer with Ex protection, intrin
sically
safe version, II (1) 2G EEx ib [ia] IIC T4, two
wire system, for conductivity measure
ment Measuring procedure: Two
electrode procedure (2EL) Four
electrode procedure (4EL) Inductive procedure (IND) microprocessor-controlled, membrane keyboard with LC display, menu control, logbook, concentration display, temperature compensation, 1 parameter set, in field housing 7MA 2 0 4 1 7MA 2 1 4 1
7MA 2 2 4 1
8A ■ Standard version, 1 signal output: 4 to 20 mA without interface 1 signal output: 4 to 20 mA, with HART interface 2 signal outputs, with HART interface: • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to 20 mA temperature or switching function for limit or flushing or warning PROFIBUS PA, 4 parameter sets Accessories/mounting mate
rial A B C D Order No. For mounting the analyzer or the isolating block on a pipeline HART version with Ex protection EEx ia IIC, Smart, with 24 V DC power supply, p.c.b., single locking 7NG4122
1AA10 HART version with Ex protection EEx ia IIC, Smart, with 95-253 V AC power supply, compact subassembly, DIN rail mounting 7NG4122
1BA10 Protective hood (SS, type No. 1.4571) with base plate C79451
A3177
D12 Pipe clamp (SS, type No. 1.4571) 7MA8500
8DG Base plate (SS, type No. 1.4571) C79451
A3177
D11 HACH LANGE 2/11 Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X ■ Dimensional drawings 10 172 D-D 20.5 D Æ 13 Æ 6.5 5 269 286±0.2 1) 306 94 105,5 D 0 R1 ca 30 16.5 94 152±0.2 1) A Bushings (3 x PG 11) knockout if required SIPAN 32 analyzer, dimensions in mm 2/12 HACH LANGE PG 13.5 SW 24 PG 11 SW 22 1.7 19.5 26.5 80 17 View A 1) 3 fixing bores (M6) Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X ■ Schematics Analyzer SIPAN 32, SIPAN 32X 2 + 3 4 5 + 6 - 7 8 - 9 + 10 11 12 13 14 15 16 17 ö ý ø ö ý ø ö ý ø 1 - Sensor ö ý ø 0/4-20 mA 24 V DC passive 4-20 mA 2nd analog Option not 1) HART used PROFIBUS PA output 1) Sensors 7MA2000-8P... 17 10 11 12 13 BN GN Pt1000 2EL sensors 7MA2000-8A/B/C/D... 14 15 16 17 Conductivity BN 16 WH 15 Conductivity GY PK Pt100 14 YE 13 ö ý ø WH/YE 12 ö ý ø RD 10 11 WH 17 GN 15 16 WH/RD 14 WH/OR 13 ö ý ø BK 12 ö ý ø BU 10 11 SIPAN 32, SIPAN 32X SIPAN 32, SIPAN 32X SIPAN 32, SIPAN 32X 2EL sensors 7MA8500-8DS The temperature sensor of the sensors 7MA2000-8P. and 7MA8500-8DS is connected in two-wire system. To compensate the resistance influence of the sensor cable on the precision, a single temperature adjustment must be carried out during commissioning. IND sensors 7MA2200-8BA, 7MA2200-8EA Pt100 12 14 15 16 17 Conductivity BN BU Pt100 13 WH YE GN WH BN GN BN YE GN WH GY 10 11 ö ý ø PK 17 ö ý ø RD 16 Conductivity BK 4EL sensors 7MA2100-8B/C... 15 YE 14 ö ý ø ö ý ø Pt100 Conductivity 13 GN 12 GY 10 11 PK 17 RD 16 BN 15 ö ý ø ö ý ø Pt100 14 WH 13 SIPAN 32, SIPAN 32X BU 12 VI 10 11 SIPAN 32, SIPAN 32X VI SIPAN 32, SIPAN 32X IND sensors 7MA2200-8.. (not -8BA, -8EA) SIPAN 32, SIPAN 32X 12 15 16 17 Conductivity PK GY GN 14 ö ý ø ö ý ø Pt100 13 WH 10 11 2EL sensor 7MA3100-8HL Brown cable (BN) not connected. Legend of colors RD red PK pink GY gray WH white BN brown BU blue YE yellow GN green BK black OR orange VI violet 1) Not used with PROFIBUS version. SIPAN 32 or SIPAN 32X analyzer, electric connections HACH LANGE 2/13 Liquid Analysis Analyzer for Conductivity SIPAN 32 and SIPAN 32X Communication between SIPAN 32 with HART modem and PC 2/14 HACH LANGE Analyzer for Conductivity SIPAN 34 2/16 2/16 2/16 2/18 2/19 2/23 2/25 2/26 2/28 Overview Benefits Application Design Function Technical data Ordering data Dimensional drawings Schematics HACH LANGE Liquid Analysis Analyzer for Conductivity SIPAN 34 Flüssigkeitsanalysengeräte ■ Overview ■ Benefits The SIPAN 34 measuring equipment is designed to determine the electric conductivity of aqueous or organic solutions. Usefulness of SIPAN 34 • Four-wire connection • Sensor diagnosis for temperature measurement • Automatic measured-value hold at calibration • Logbook to document all important events • Local control following NAMUR • Field housing IP65 • Panel housing IP54 • Second output for temperature (option) • Three programmable relays. ■ Application The conductivity measuring range extends over 8 powers of ten from ultra-pure water (approx. 0.040 µS/cm) up to very high conductivities (approx. 2500 mS/cm). This wide range is covered by three measuring procedures (see Fig.): • the two-electrode procedure (2EL sensor), • the four-electrode procedure (4EL sensor) and • the inductive procedure (IND sensor). SIPAN 34 for conductivity The measuring ranges as well as the fields of application of the three procedures overlap to a certain extent. SIPAN 34 measuring equipment, selection table according to fields of application 2/16 HACH LANGE Liquid Analysis Analyzer for Conductivity SIPAN 34 Two
electrode procedure (2EL sensor) The two-electrode procedure (2EL sensor) is used to measure the conductivity of ultra-pure water and highly diluted aqueous solutions from 0.04 µS/cm to 25 000 µS/cm where contamination and deposits on the electrodes extending into the measured medium are not expected (higher conductivities - above 5 000 µS/cm - lead to polarization effects and thus to errors in measurement). Media with conductivities < 5 µS/cm (VE water, ultra-pure water) exhibit a distinct non-linear temperature dependence. The analyzer is therefore provided with a temperature compensation function for ultra-pure water. Applications • Steam generation (boiler feedwater, condensation) • Semiconductor manufacture (ultra-pure water, chip cleaning) • Water processing (reverse osmosis, ion exchanger) • Leak testing of heat exchangers • Drinking water and surface water. Product characteristics • Measurement of very small ranges (< 0.1 µS/cm) by using stainless steel sensors resistant to pressure and corrosion with a concentric electrode arrangement, with integrated thermometer • Calibration of measurement is unnecessary for 2EL concentric sensors (even following replacement of sensor); if needed, a temperature calibration has to be carried out • Low price for stainless steel pin electrodes with plastic shaft with or without temperature compensation for measuring ranges ≥ 2 µS/cm • Compact electrode, as combination with a pH/redox measurement in one fitting. Four
electrode procedure (4EL sensor) The four-electrode procedure is used in media of average conductivity from 0.01 mS/cm to 500 mS/cm. The advantages of this procedure are the insensitivity of the sensor towards contamination and the avoidance of polarization errors. Product characteristics • Four concentric ring electrodes - potted level with the shaft - thus particularly resistant to contamination • Automatic compensation of contamination • Sensors with integrated thermometer for automatic temperature compensation • Particularly compact design possible even in combination with a pH/redox measurement. Inductive procedure (IND sensor) The inductive procedure can be used to measure the conductivity of small to very high values from 1 µS/cm to approx. 2 500 mS/cm. This procedure is particularly suitable for the measurement of corrosive media since there is no direct contact between the electrodes and the medium. In addition to output of the conductivity, it is also possible to output a display in percentage by weight following automatic conversion (determination of concentration). Applications • Determination of concentrations of brines, alkalis and acids, in particular sulphuric acid and oleum • Corrosive industrial waste water • CIP control • Regeneration of concentration • Phase separation of product/water mixtures • Product monitoring in filling and cleaning plants. Product characteristics • Extremely wide dynamic range (> 106) with one type of sensor • Three types of sensor manufactured from the high-tech polymer PEEK with integrated thermometer and with special leak tightness of sensor and thermometer since moulded from one piece. Permanent overload capacity 10 bar at +130 ºC • FEP sensor with large wall thickness for measurements in highly concentrated acids and alkalis • DURAN glass sensor absolutely resistant to diffusion in hot, super-saturated acids (oleum), resistant to organic solvents, with integrated thermometer. In addition to output of the conductivity, it is also possible to output a display in percentage by weight following automatic conversion. Applications • Municipal and industrial sewage treatment plants • Service water and waste water • Drinking water purification • Cooling water • Determination of concentrations of brines, alkalis and acids • Monitoring of concentrates • Bleaching and washing baths. HACH LANGE 2/17 Liquid Analysis Analyzer for Conductivity SIPAN 34 ■ Design SIPAN 34 Keyboard Not Ex zone Display Conductivity 0/4 ... 20 mA EPROM EEPROM D/A Temperature 0/4 ... 20 mA Conductivity Limit 1 Limit 2 Diagnosis: alarm A/D Warning Function check Temperature Range signaling D/D Range signaling Range signaling or Option Cleaning Mains Fitting Flushing D/D Range switching Basic version Option SIPAN 34 analyzer, mode of operation 2/18 HACH LANGE Liquid Analysis Analyzer for Conductivity SIPAN 34 The SIPAN 34 analyzer is optionally available with special features for process use. It contains the analog and digital data processing functions for the signal delivered by the sensor. A SIPAN 34 analyzer can be parameterized for all measuring ranges. Measured
value processing The conductivity of an electrolyte is a linear function of the concentration at a constant temperature since the valency - and also the ion mobility in dilute aqueous solutions - remain constant. Examples of the dependence of conductivity on the concentration are shown in the figure. µScm-1 HCl HNO3 NaOH Ca(OH)2 Conductivity Temperature Remote range switching for 4 parameter sets, thus access to 4 complete parameter sets for complete methods incl. measuring ranges, limits, temp. compensation, hysteresis 160 100 80 0 Inputs 20 40 Options 60 Either Pt100 or Pt1000 thermometers can be connected to the analyzers. The measurement is designed as a two- or three-wire system. The type of thermometer connected is recognized automatically. Basic analyzer KNO3 Conductivity Temperature compensation NaCl Na3PO4 KCl CaSO4 Na2SO4 120 With all three measuring procedures (2EL, 4EL and IND), a squarewave or sine-wave AC voltage is applied to the sensors. The magnitude and frequency depend on the measuring procedure. The current output by the sensor is a measure of the conductivity of the medium. CaCl2 140 Conductivity MgCl2 Na2CO3 H2SO4 180 The signals delivered by the analog input amplifiers are processed into a temperature-compensated value by the digital data processing function. The conductivity of a dilute electrolyte solution depends on: • The number of ions in the solution, i.e. its concentration • The number of unit charges capable of being transported by each ion, i.e. the ion charge number • The migration velocity or mobility of the ions. 200 SIPAN 34 are analyzers of the new four-wire generation with stateof-the-art micro-power technology with microprocessor control and multi-segment display. 0 10 20 30 40 50 Concentration 60 70 80 90 100 mg·l-1 Conductivity of dilute solutions at 18 °C Outputs Analog output 2nd analog output for temperature The total conductivity of a solution is the sum of the conductivities of all ion pairs present in the solution and is thus usually a non-specific variable. Second 2 limits limit with control function In practice, however, the concentration of a component can be determined directly from the conductivity of a solution if • only one substance is present in the solution • all constituents of the solution change in approximately the same ratio • the variation of one constituent of the solution compared to that of the others is so predominant that it alone practically determines the conductivity. Contacts 1 x failure 1 x limit 2 x NAMUR contacts 3 x cleaning or 3 x range signaling contacts Functions ■ Function Measuring procedure for conductivity measurements The conductivity of liquids is based on the electrolytic dissociation of acids, bases or salts in water into electrically charged particles (ions). The magnitude of the electrical conductivity K is the reciprocal value of the electric resistance of the solution. The dimension for electric conductivity is S/m (Siemens per meter). In the case of concentrated solutions of electrolyte there is usually no linear relationship between the conductivity of the solution and the concentration of the electrolyte. The conductivity frequently decreases as the concentration increases since the degree of dissociation drops on the one hand and the ion mobility is reduced on the other because of inter-ionic interactions. A concentration measurement can nevertheless be carried out if it is only made in a reliable range, i.e. where the conductivity either rises or falls. This assumes that the relationship between conductivity and concentration of the electrolyte is known. HACH LANGE 2/19 Liquid Analysis Analyzer for Conductivity SIPAN 34 Three different measuring procedures enable measurement of the conductivity individually adapted to the task and the concentration of the electrolyte: • Two-electrode procedure • Four-electrode procedure • Inductive procedure without electrodes. 0,8 S·cm-1 0,7 0,6 The conductivity measuring equipment consists of the following basic components: • Conductivity sensor • Temperature sensor to compensate the influence of temperature • Analyzer. HCl Conductivity 0,5 KOH 0,4 0,3 HNO3 H2SO4 0,2 KCl 0 10 A square-wave AC voltage is applied to the two current electrodes. The current flowing through the solution is inversely proportional to the electrical resistance and directly proportional to the conductivity. NaOH 0,1 0 Two
electrode procedure 20 30 40 50 60 70 80 90 100 Analyzer SIPAN 34 Concentration (% w/w) Conductivity of concentrated solutions at 18 °C U The conductivity of electrolytes is highly temperature-dependent since both the number of dissociated modules and the ion mobility are highly temperature-dependent. A reference temperature of 25 °C is therefore selected and the measured conductivity values are corrected accordingly using the temperature coefficient α. I U The temperature coefficient α depends on • the composition of the electrolyte solution • the concentration of the solution. I Measured medium Values from 1 to 6%/K are possible. The figure shows that the resistance depends non-linearly on the temperature for an NaCl solution. Two-electrode procedure, mode of operation Four
electrode procedure 12 x 103 A square-wave AC voltage is applied to two current electrodes.The four-electrode procedure uses two current electrodes and two voltage electrodes. A square-wave AC voltage is applied to the current electrodes, and the current flowing through the solution is inversely proportional to the electrode resistance and directly proportional to the conductivity. The AC voltage is measured at the voltage electrodes and used to control the output voltage at the current electrodes. The generation of a deposit on the sensors is thus taken into account and compensated. 3 mg/l W 10 8 5 mg/l Analyzer SIPAN 34 6 7 mg/l 4 I U I 10 mg/l 15 mg/l U 2 0 25 mg/l 10 20 I 20 mg/l 30 40 50 60 70 80 90 °C Dependence of the resistance of an NaCl solution on the temperature at various concentrations 2/20 HACH LANGE U Measured medium Four-electrode procedure, mode of operation I Liquid Analysis Analyzer for Conductivity SIPAN 34 Inductive procedure The sensor consists of two coils which are positioned on toroidal tape cores. The primary coil is driven by a sinusoidal AC voltage. An AC voltage is induced in the liquid loop (= measured medium) which constitutes the secondary winding of this "transformer". In the case of electrically conducting liquids, a current flows which is proportional to their conductivity. The liquid loop is simultaneously the primary winding of the secondary coil which operates as a current transformer. This current is rectified in-phase and amplified. Analyzer SIPAN 34 U Measured medium I U I Inductive procedure, mode of operation Special characteristics of SIPAN 34 • Power supply (24 V AC/DC, 115 V AC, 230 V AC) • Complete basic configuration • Self-explanatory menu operation in plain text in five languages (German , English, French, Spanish, Italian), help function • Operation according to NAMUR, i.e. complete local operation with directly accessible keypad with 8 keys and large, illuminated, full-graphic display • Display of S/cm, mS/cm, µS/cm, µS/m, MΩcm, kΩcm, % w/w, H2SO4, oleum, HNO3, HCl, HBr, NaOH, NaCl, KOH • Direct output of concentration values instead of conductivity (19 stored material tables) • Additional permanent bargraph of measuring range • Graphic trend display of measured value • Additional permanent temperature display in °C • Output signal 0/4 to 20 mA, floating • Freely-programmable, permanent measuring-point designation (saves tag labels) • Logbook with entry of faults or calibration procedures with date and time • Fault and limit contacts • Non-linear ultra-pure water temperature compensation for conductivity • All conductivity measuring procedures (2EL/4EL/IND) can be selected, i.e. only one analyzer is required for the complete conductivity range • Program for automatic recording of user-specific temperature compensation • Maintenance switch with automatic HOLD function • Comprehensive fault diagnosis and preventive maintenance system in plain text • Three operating levels with coded protection for monitoring, routine and specialists • Selectable tests for: keys, RAM, EPROM, EEPROM and display • Output of freely-defined current values for test purposes • Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection • Panel housing made completely of metal, CE safety for every control cabinet installation engineer • Robust field housing (IP65) with cable screwed glands for easy connection. Additional optional characteristics • Second current output for temperature with additional limit • Individual calibration of each parameter set possible • Two-point controller for pulse length (dosing valves) or pulse frequency (diaphragm pumps) • Additional switching contact for maintenance (function check) and pre-alarm (warning) • Cleaning function; three relay contacts can be operated via timer to control an alternating fitting, as well as to give up cleaning and flushing solutions • The analyzer has four complete parameter sets for four methods, not only for measuring ranges, e.g. also for limits, physical units, temperature compensation with complete characteristic (not only TC value), hysteresis to be set independently from each other. This allows an optimal adaptation in a process when different media have to be measured at one measuring point. Switchover to the correspondent parameter set can be controlled externally. HACH LANGE 2/21 Liquid Analysis Analyzer for Conductivity SIPAN 34 SIPAN 34 analyzer, display and control panel 2/22 HACH LANGE Liquid Analysis Analyzer for Conductivity SIPAN 34 ■ Technical data Limit 1 NO or 1 NC contact selectable, hysteresis and response time can be set Display Graphical • Measured value Four 15-mm digits or trend display 5 bars, 3 mm high Alarm contact 1 alarm (failure) Relay contacts NO contact, rating 24 V AC/DC, 1 A, floating, non-sparking • Temperature, alarms, measuringpoint identification 3-mm digits Current output as bargraph, 3 mm high Logbook Automatic recording of warning and failure messages with date and time, 20 entries with overflow, nonerasable • Operator control 8 lines of text 1 heading (inverted display) and 6 text lines, letters 4 mm high Data storage >10 years (EEPROM) Device self-test Testing of RAM, EPROM, EEPROM, display, keyboard, data can be called on display Clock Software clock Identification CE marking • Illumination LED Languages 5: German, English, French, Italian, Spanish; selectable Coding 3 coding levels for operations (display level, user level, specialist level) Dimension µS/cm, mS/cm, S/cm, µS/m, mS/m, S/m, % w/w, MΩcm, kΩcm Measuring range Observe technical data of sensors Measuring span (expansion) Any, but at least 10% of smallest measuring range Measuring range for temperature -25 ... +175 °C, -13 ... +347 °F Measuring span for temperature Any, but at least 10% of measuring range Temperature compensation with conductivity measurement Linear TC value, 0 to 10%/K Non-linear response (max. 9 characteristics) 2 characteristics defined as standard for ultra-pure water and beer Temperature compensation with % w/w Conductivity tables stored for H2SO4, oleum, HNO3, HCl, HBr, NaOH, KOH, NaCl Error limits • With conductivity measurement <1.0% of measuring range (at rated conditions) • With temperature compensation <1.0% for characteristic (with conductivity) <0,5% of measured value (for pure liquids) Temperature and mechanical stress • Operation - Temperature - Mechanical stress • Storage DIN EN (IEC) 60721-3-3 -20 °C ... +60 °C corresponds to 3K6 but lowest temperature –20 °C without condensation -5 °C ... +70 °C corresponds to 3K3 but highest temperature +70 °C for panel mounting 3M2 DIN EN (IEC) 60721-3-1 - Temperature -25 °C ... +70 °C corresponds to 1K4 but highest temperature +70 °C - Mechanical stress 1M2 • Transport - Temperature - Mechanical stress DIN EN (IEC) 60721-3-2 -25 °C ... +70 °C corresponds to 2K3 2M2 Water protection DIN EN (IEC) 60529 IP65 for field devices IP54 for panel mounting EMC DIN EN (IEC) 61326 and NAMUR NE 21 Electrical safety DIN EN (IEC) 61010-1 Quality assurance system DIN ISO 9001/EN 29000 Material of field housing Macrolon (polycarbonate + 20% glass fiber) Influencing effects According to DIN IEC 746, Part 1 • Repeatability <0.2% of full-scale value • Linearity <0.5% of full-scale value Material of panel housing Aluminium • Ambient temperature <0.2%/10 K Permissible relative humidity 10 ... 95%, no condensation • Power supply <0.1% Power supply • Load <0.1%/100 Ω 120 V AC (94 V ... 132 V), 48 ... 63 Hz, 10 VA 230 V AC (187 V ... 264 V), 48 ... 63 Hz, 10 VA 24 V AC (20 V ... 26 V), 48 ... 63 Hz, 10 VA 24 V DC (20 V ... 30 V), 8 VA, protection class II (field housing) • Zero error <0.2% of full-scale value Output signal 4 to 20 mA, floating, linear to measured value or bilinear to measured value (2 linear partial ranges with a knee at 10 or 12 mA, see figure Max. permissible load in Ω 750 Electrical isolation Input and output are isolated Test voltage 500 V AC, 50 Hz, 1 min Weight 2.5 kg field housing 2.0 kg panel mounting housing HACH LANGE 2/23 Liquid Analysis Analyzer for Conductivity SIPAN 34 Options Second output signal 0/4 ... 20 mA linear to temperature Additional limit 1 x NO or NC contact selectable, any assignment to measured value or temperature Parameter sets 4 Diagnostic contacts 2, pre-alarm and maintenance Range signalling Signalling of current measuring range (3 contacts) Cleaning contacts with timer 3, fitting control, cleaning and flushing Range switchover 4, parameterizable as desired using range selection; external control possible Controller 2 floating contacts (instead of limits) as PI controller Measured medium Temperature range °C Possible measuring ranges % w/w H2SO4 -20 ... +120 0 ... 34 32 ... 85 92 ... 99.5 Oleum +10 ... +120 +10 ... +60 12 ... 45 60 ... 70 HNO3 -20 ... +55 0 ... 30 34 ... 85 92 ... 95 0 ... 12 0 ... +100 HCl -20 ... +55 0 ... +100 0 ... 16 24 ... 42 0 ... 12 NaOH 0 ... +100 0 ... 26 18 ... 32 NaCl 0 ... +100 0 ... 26 KOH 0 ... +100 0 ... 34 32 ... 42 HBr -20 ... +55 0 ... 30 39 ... 52 Programmed data of measured medium in SIPAN 34 for the concentration display (the possible measuring ranges are maximum indications and are influenced by the temperature) 2/24 HACH LANGE mA 20 10/12 0/4 KA KK KA Start-of-scale value KK Knee KE Full-scale value Linear and bent characteristics in SIPAN 34 analyzer KE Liquid Analysis Analyzer for Conductivity SIPAN 34 Ordering data Order No.. Analyzer SIPAN 34 four
wire system, for conductivity measurement microprocessor-based with illuminated graphic display, membrane keyboard, trend display, menu-based operation (5 languages), logbook, concentration display, 1 parameter set, 1 signal output 0/4 to 20 mA, 1 alarm contact, 1 limit contact, 2 diagnostic contacts 7MA 2 0 3 4
Power supply • 24 V DC/24 V AC, 48 ... 63 Hz • 120 V AC, 48 ... 63 Hz • 230 V AC, 48 ... 63 Hz ■■■■ 0
0 ■■ 0 Order No. For mounting the analyzer on a pipeline Protective hood (SS, type No. 1.4571) with base plate C79451
A3177
D12 Pipe clamp (SS, type No. 1.4571) 7MA8500
8DG Base plate (SS, type No. 1.4571) C79451
A3177
D11 0 1 2 Measuring procedure • Two-electrode procedure (2EL) A • Four-electrode procedure (4EL) B • Inductive procedure (IND) C Instrument design • Field housing • Panel housing 96 x 96 Accessories/mounting material A B Without additional option 0 With second signal output 0/4 ... 20 mA, and second limit 1 With four selectable parameter sets and three range signalling contacts 2 With second signal output 0/4 ... 20 mA and with four selectable parameter sets and three range signalling contacts 3 Limits with controller function • Without • With Automatic cleaning/flushing (3 contacts + timer for fitting, cleaning, flushing) • Without • With A B A B Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on request. Please order together with the analyzer in cleartype. HACH LANGE 2/25 Liquid Analysis Analyzer for Conductivity SIPAN 34 ■ Dimensional drawings 10 172 D-D 20.5 D Æ 13 Æ 6.5 5 269 286±0.2 1) 306 94 105.5 D 0 R1 ca 30 16.5 94 152±0.2 1) A PG 13.5 SW 24 SIPAN 34 analyzer as field housing, dimensions in mm 2/26 HACH LANGE PG 11 SW 22 1.7 19.5 26.5 80 17 View A 1) 3 fixing bores (M6) Liquid Analysis Analyzer for Conductivity SIPAN 34 16 1 30 90 15 96 15 100 90 1 90 9 11 15 96 0 ... 6 18 8 67 282 SIPAN 34 analyzer as panel mounting instrument, dimensions in mm HACH LANGE 2/27 Liquid Analysis Analyzer for Conductivity SIPAN 34 ■ Schematics SIPAN 34 10 11 12 13 14 15 16 17 18 19 ö ý ø Selection Range 2 Signaling Range 3 Selection Range 3 Pre-alarm warning ö ý ø ö ý ø ö ý ø ö ý ø 24 V AC 110 V AC 230 V AC ö ý ø N ö ý ø L Conductivity ö ý ø ö ý ø Signaling Range 2 ö ý ø ö ý ø Alarm Failure ö ý ø ö ý ø Limit 1 Limit 2 Maintenance Functional check Signaling Range 4 Selection Range 4 Temperature Option SIPAN 34 25 26 29 30 Fitting ö ý ø Conductivity Flushing Cleaning WH PK 15 ö ý ø GY 28 ö ý ø ö ý ø Pt100 GN 27 12 13 14 ö ý ø 23 24 21 22 ö ý ø ö ý ø 24 V DC 20 20 mA 9 20 mA 8 0/4 7 0/4 6 +24 V 5 +24 V 2 + +24 V 1 - 2EL sensor 7MA3100-8HL Brown cable (BN) not connected. 24 25 26 27 28 29 30 ö ý ø ö ý ø BN 23 30 WH 28 29 YE 27 GN 26 BN PK 25 GY 24 GN 23 ö ý ø BK 30 ö ý ø 28 29 WH/RD 27 WH/YE 26 WH/OR 25 RD 24 BU 23 SIPAN 34 SIPAN 34 WH SIPAN 34 Pt100 Conductivity Pt1000 Conductivity Sensors 7MA2000-8P. 2EL sensors 7MA8500-8DS 2EL sensors 7MA2000-8A/B/C/D. The temperature sensor of the sensors 7MA2000-8P. and 7MA8500-8DS is connected in two-wire system. To compensate the resistance influence of the sensor cable on the precision, a single temperature adjustment must be carried out during commissioning. SIPAN 34 Conductivity Pt100 IND sensors 7MA2200-8BA, 7MA2200-8EA Pt100 4EL sensors 7MA2100-8B/C. Conductivity IND sensors 7MA2200-8.. (not -8BA, -8EA) Legend of colors RD red VI violet GY gray Electric connections 2/28 HACH LANGE WH white BN brown BU blue YE yellow GN green BK black OR orange PK pink VT* Connection to terminal 23 of analyzer for panel mounting connection to analyzer shield for field instrument. VT* 30 YE 28 29 BU 27 GN 26 BN 25 WH 24 GY RD VT* 23 PK 30 YE 28 29 GN 27 BU 26 BN 25 WH BN 24 GN 23 30 BN GN 28 29 SIPAN 34 ö ý ø ö ý ø Pt100 27 YE 26 WH 25 GY 24 PK 23 RD BK WH SIPAN 34 Analyzer for pH Value and Redox Potential SIPAN 32 and SIPAN 32X 3/2 3/2 3/2 3/4 3/5 3/8 3/10 3/11 3/12 Overview Benefits Application Design Function Technical data Ordering data Dimensional drawings Schematics HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X Liquid Analyzers ■ Application The application range for pH measurements covers the complete pH scale (see Fig.) from pH = 0 to pH = 14 and for redox potential measurements from -2000 mV to +2000 mV. Acidic solutions Strong Weak Neutral SIPAN 32 for pH value and redox potential ■ Benefits Usefulness of SIPAN 32 and SIPAN 32X • Two-wire connection • Sensor diagnosis • Redundant pH measurement with 2 pH electrodes (increased safety, reduced maintenance costs) • Standard buffer stored for selection • Automatic measured-value hold at calibration • Logbook to document all important events • Local control following NAMUR • Use of all commercial pH and redox glass electrodes • Differential pH sensors made of enamel (with two high impedance inputs) can be used • PROFIBUS PA or HART communication available • Available as Ex variant (EEx ib [ia]) • Field enclosure IP65 • Second, passive output, freely parameterizable (for second measured value or temperature (analog) or pre-warning or purging function or limit (binary)). Alkaline solutions Weak Strong pH value Substance [H3O+] 0 5% hydrochloric/accu acid 100 Strong 1 Gastric juice 2 Lemon juice/vinegar 3 Fruit juices 4 Wine 5 Coffee (black) 6 Mineral water/rain water 7 Water (pure)/milk (fresh) 10-7 Neutral Acidic solutions The SIPAN 32 and SIPAN 32X measuring equipment can be used to measure the pH value and/or redox potential of aqueous solutions. Weak 8 Sodium bicarbonate solution 9 Borax solution 10 Soap solution 11 Film developer 12 Ammonium hydroxide 13 Quicklime solution 14 Sodium hydrox. sol. 10% 10-14 pH value Substance Weak Alkaline solutions ■ Overview [H3O+] Strong Measuring equipment SIPAN 32 and SIPAN 32X, pH scale, examples pH measurement pH measurements are carried out in aqueous solutions for the following purposes: • Manufacture of a product with defined characteristics • Cost-saving production • Protection of mankind, environment and material from damage • Satisfy statutory requirements. In the case of processes with varying temperatures, measurements are usually carried out with temperature compensation because the pH value changes with temperature according to the Nernst equation. Redox potential measurement Redox potential (ORP) measurements permit statements to be made on the oxidation or reduction power of an aqueous solution. Metal combination electrodes (platinum or gold) are used for the measurements and can be installed in the same fittings as the pH sensors. 3/2 HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X Applications • Monitoring of automatic sewage detoxification • Monitoring of electrolytic baths and bleaching baths • Measurements on developers with reducing action, and starting products for dyestuffs, e.g. methylene blue, anthraquinone sulphonate, indigo sulphate and naphthoquinone • Monitoring of disinfection action in swimming pools. Application field Special characteristics • Use of combination electrodes with integrated Pt1000 temperature sensor for applications where only one mounting location is available • Special, robust and low-maintenance electrodes for complex measurements in the food/paper industries and in flue gas desulphurization plants • Sterilizable electrodes for the food and pharmaceutical industries • Low-maintenance electrodes with polymer or gel electrolytes which are insensitive to contamination • Electrodes for installation in pipes or vessels where the measured medium is under pressure • Replacement fittings for inline installation in reactors or process lines • Automatic sensor cleaning • All versions with explosion protection for zone 1/event. zone 0 • Refillable electrode for use in water with low grade ion concentration. Application example Biology, medicine, bacteriology Fermenter (antibiotics) Breweries and yeast factories Brewing water, mash, fermentation (favourable growth of yeast), cleaning solutions (CIP) Chemical industry Fat synthesis (saponification of fatty acids), esterification of alcohols, formation of aldol (production of plastics, etc.), condensates and waste water in refineries, glue, gelatine and soap manufacture, production of acids and alkaline solutions, chlor-alkali electrolysis Electrical engineering, electroplating Electrolytic capacitors, electrolytic baths, waste water Tanneries Steeping the skins, alkalinity of the lime-pit, decalcification, staining, tanning, bleaching, dying Rubber industry Stability of latex Iron and steel works, coke ovens, gas works Ore preparation (flotation), gas purification (sulphur removal), waste water and water purification Power plants Avoidance of corrosion in steam circuit, waste water control Food industry Preservation of fruit juices, gelatinization of jams, souring of milk, cheese preparation, maturing of cream, yogurt production, sugar factories: purification and refining of juices (pre-separation and saturation), inversion of glucose, fermentation of molasses, press water, breweries Paper, cellulose, rayon and explosives industries Water treatment, sulphite liquor, bleaching, soaping and wash baths, sizing with resin soap and aluminium sulphate, neutralization of waste water Pharmaceutical industry High-purity water, fermentation process, product quality Textile industry Cleaning (soap) baths, bleaching baths, dye baths (efficiency, hue), wash water (acid-free to avoid spots) Hydroeconomy Sewage treatment plants (optimum growth conditions in biological stages), river water (monitoring of sewage ingress because of danger to fish), sedimentation and precipitation of colloidal suspensions, softening of water (optimum precipitation), neutralization with lime (danger of corrosion for pipes and concrete tanks), base exchange methods (Permutite, Wolfatite) Oil and gas Acidic water from power refiner or flare zone, biological sewage preparation, water charge by NH3, H2S and hydrocarbons of low viscosity HACH LANGE 3/3 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X ■ Design Ex zone 0*) Ex zone 1**) Ex zone 2**) Not Ex zone Not Ex zone SIPAN 32 not Ex zone SIPAN 32X Ex zone 1 Ex zone 2 Keyboard Display Mains EPROM pH / ORP 4 ... 20 mA Isolating power supply HART interface 4 ... 20 mA EEPROM pH / ORP 2nd meas. value pH/ORP2, 0/4 ... 20 mA or pH / ORP A/D D/A Temperature 0/4 ... 20 mA or Limit signal (0/4) / 20 mA or Temperature Mains Isolating power supply 0/4 ... 20 mA Cleaning signal (0/4) / 20 mA or Warning (0/4) / 20 mA D/D PROFIBUS PA DP/PA coupler DP/PA link Basic version Option External device SIPAN 32 and SIPAN 32X analyzers, mode of operation 3/4 HACH LANGE *) Only sensors with ATEX approval and in conjunction with SIPAN 32X **) Only with SIPAN 32X Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X The SIPAN 32 and SIPAN 32X measuring equipment consist of: • a sensor (measuring and reference electrodes, usually as combination electrode) • a flow, immersion or replacement fitting • a temperature sensor (Pt1000 or Pt100) with temperature-compensated pH measurements • a SIPAN 32 or SIPAN 32X analyzer. SIPAN 32 and SIPAN 32X are analyzers of the new two-wire generation with state-of-the-art micro-power technology with microprocessor control and multi-segment display. They contain the analog and digital data processing functions for the signal delivered by the sensor. ■ Function Sensors The pH value is defined as the negative decimal logarithm of the hydrogen ion activity "a" (simplified: hydrogen ion concentration c) pH = -log a H3O+ and indicates whether a solution (the measured medium) is acidic, neutral or alkaline. An assembly comprising a measuring electrode (glass electrode) and reference electrode is used to measure the pH value (see Fig.). Measured
value processing In the measuring electrode, use is made of the dependence of the potential of the glass membrane on the hydrogen ion activity. A spherical glass membrane as the pH sensor is usually joined by melting onto the end of the glass shaft. This sphere is filled with a buffer solution of known pH (usually pH 7.0). The tapping electrode is immersed into the glass sphere. The potential difference between the inner and outer surfaces of the glass membrane is used for the pH measurement. The signals delivered by the analog input amplifiers are processed into a temperature-compensated value by the digital data processing function. The reference electrode has electrical contact to the measured medium via a diaphragm so that the circuit is closed via the measured solution. pH value The Ag/AgCl tapping system is located in a KCl electrolyte which may be liquid or bound to a gel-type or polymer carrier material. The SIPAN 32 and SIPAN 32X analyzers are available in field housings. A SIPAN 32 or SIPAN 32X analyzer can be parameterized for all measuring ranges. A potential depending on the concentration of hydrogen ions in the measured medium is generated on the pH sensor. The voltage between the pH electrode and the reference electrode is described by the Nernst equation: U = Uo + 2,3RT/F x lg a H3O+ The measuring and reference electrodes must always have the same tapping system. They can also be supplied as combination electrodes and thus require only one mounting location. The Pt100/1000 sensor for temperature compensation can also be integrated in the combination electrode. The voltage which is proportional to the pH value is converted by the transmitter into a standardized output signal of 58.16 mV per ∆pH = 1 (at 20 °C). Combination electrodes with integrated Pt100/1000 are preferably used in replacement or immersion fittings in which only one mounting location is available. ORP value Reference electrodes with a liquid electrolyte can be filled with KCl via a filling opening and subjected to pressure if necessary. The redox potential measurement determines the reduction or oxidation power of a solution. Oxidizing agents take up electrons, reducing agents give up electrons. The process is an equilibrium reaction: Analyzer SIPAN 32 Ox+ + e- ↔ Red The resulting potential U between the reference and measuring electrodes is applied to the analyzer as a proportional voltage. There is no temperature compensation. Basic analyzer U I 24 V DC Output signal 4 ... 20 mA Options Inputs pH value HART or PROFIBUS PA interface Reference electrode Temperature Measuring electrode Outputs Analog output 4 ... 20 mA with alarm > 21 mA 2nd analog output or 2nd meas. value for temperature or flushing function or limit value or warning (not for PROFIBUS PA) Diaphragm Measured medium Mode of operation of pH sensors Functions HACH LANGE 3/5 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X Special characteristics of SIPAN 32X • Intrinsic safe operation • Analyzers with type of protection Increased intrinsic safety EEx ib[ia] can be used within the potentially explosive atmospheres (zone 1, CENELEC) • The measuring electrode can also be used in Zone 0 with the relevant intrinsic safe approval. Product characteristics of SIPAN 32, communication variants Device with 4 ... 20 mA output • Electrical isolation (test voltage 500 V AC) • Output signal 4 to 20 mA • Fault or limit output > 20 mA • Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value or contact for flushing function or limit or warning (pre-alarm). pH sensors, cross-section Special characteristics of SIPAN 32 • Two-wire analyzer with state-of-the-art micro-power technology • Extremely simple field installation with only two wires • Menu-based operation with understandable symbols (based on IEC) • Complete local operation with directly accessible keypad with 8 keys and large, clearly-arranged multi-segment display • Display of pH, mV, T • Additional permanent temperature display selectable in °C or °F • Limit monitoring • Monitoring of sensor • Logbook with entry of faults or calibration procedures with date and time • Software clock • Automatic HOLD function during calibration • Comprehensive fault diagnosis system • 3 operating levels with coded protection for monitoring, routine and specialists • Selectable tests for display, keys, RAM, EPROM, EEPROM • Output of defined current values for test purposes • Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection • Robust field housing (IP65/NEMA 4X) with cable screwed glands for easy connection. Optional characteristics of SIPAN 32 • Redundant pH value, or redundant ORP value, or pH + ORP value measurements with 2 measured-value outputs for increased measuring reliability • Cleaning and timer function (option). 3/6 HACH LANGE Device with 4 ... 20 mA output and HART communication • Completely parameterizable from control system via only one two-wire cable • Additional communication via handheld communicator or PC • Output signal 4 to 20 mA • Fault or limit output > 20 mA (additional digital status transmission via HART protocol) • Central access from control system (OS, ES) to any field device using the SIEMENS PCS 7 control system • Uniform operator control and monitoring of all field units (inclusive linked host units) when using SIMATIC PDM • Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value or contact for flushing function or limit or warning (pre-alarm). Device with PROFIBUS PA communication • SIPAN 32 PA with bus connection to IEC 61158-2 and EN 50170, Part 4 • Fixed bus current limitation in case of fault • Data transmisson and device supply via common bus connection • Communication via PROFIBUS PA (Profile B, Version 3.0); thereby all settings completely parameterizable (up to three synchronous measured values, measuring range, limits, sensor diagnostic, operation simulation, etc.) • Quality indication to the measured values: status with limits • Full measured-value dynamics (discontinuation of measuredrange parameters) • Central access from control system (OS, ES) to each field device using the SIEMENS PCS 7 control system • Uniform operator control and monitoring of all field units (inclusive linked host units) when using SIMATIC PDM • Possibility of a further diagnosis with increased disponibility of plant parts • Savings of installation costs • Interoperability (replacement with parameter conservation possible) • Possibility of automatic tracking of the plant documentation • Possibility of plant optimizing during operation. Parameter sets The analyzer has four parameter sets for four methods that can be set independently from each other. This allows an optimal adaptation in a process when different medias have to be measured. Switchover to the correspondent parameter set can be controlled externally (via HART or PROFIBUS PA). Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X SIPAN 32, SIPAN 32X analyzer, display and control panel HACH LANGE 3/7 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X ■ Technical data Influencing effects on mea
sured value Display According to DIN IEC 746, Part 1 • Repeatability <0.2% of full-scale value Four 16-mm digits • Linearity <0.01 pH or 1 mV • Secondary display/temperature Four 8-mm digits • Ambient temperature <0.02 pH/10 K or 1 mV/10 K • Text display Five digits • Power supply <0.01 pH or 1 mV • Others Symbol displays • Load <0.01 pH/100 Ω or 1 mV/100 Ω • Input display Symbols • Zero error <0.01 pH or 1 mV Coding 3 coding levels for operations (display level, user level, specialist level) Output signal 4 to 20 mA, linear to measured value Unit pH, mV Max. permissible load in Ω R= (U [power supply] -14) V/0.02 A Measuring range 0 to +15 pH, -2000 to +2000 mV (observe technical data of sensors) Power supply 14 V ... 30 V DC, 0.8 W, protection class II Measuring span (expansion) Any, but at least 10% of smallest measuring range Test voltage 500 V AC, 50 Hz, 1 min Logbook Automatic recording of warning and failure messages with date and time, 20 entries with overflow, nonerasable Data storage >10 years (EEPROM) Device self-test Testing of RAM, EPROM, EEPROM, display, keyboard, data can be called on display • Measured value Output range Optionally selectable between 0 and maximum full-scale value Temperature compensation Input: Pt100/Pt1000, automatic selection, two-wire or three-wire system Compensation of Nernst voltage, automatic, manual, adjustable temperature -50 to +200 °C, -60 to +400 °F Clock Software clock Measuring span for temperature Any, but at least 10% of smallest measuring range Identification CE marking Electrical isolation Input and output electrically isolated • Operation Measuring range for temperature Temperature and mechanical stress - Temperature Input resistance • Glass electrode >1012 Ω • Reference electrode >1010 Ω - Mechanical stress • Storage Offset current • Glass electrode • Reference electrode <5⋅10-12 A (at 20 °C) -10 <1⋅10 - Temperature A (at 20 °C) - Mechanical stress Electrodes • Electrode assembly zero point pH 0 ... 14 • Slope range 50 ... 60 mV (per ∆pH = 1) at 20 °C Isothermal intersection Uis -1000 ... +1000 mV • Transport - Temperature - Mechanical stress Measuring impedance DIN EN (IEC) 60721-3-3 -20 °C ... +60 °C corresponds to 3K6 but lowest temperature -20 °C without condensation 3M2 DIN EN (IEC) 60721-3-1 -25 °C ... +70 °C corresponds to 1K4 but highest temperature +70 °C 1M2 DIN EN (IEC) 60721-3-2 -25 °C ... +70 °C corresponds to 2K3 2M2 Water protection DIN EN (IEC) 60529 IP65 for field devices DIN EN (IEC) 61326 and NAMUR NE 21 • Glass electrode 5 ... 1000 MΩ • Reference electrode 1 ... 100 kΩ EMV <0.03 pH or 2 mV Electrical safety DIN EN (IEC) 61010-1 < 0.5% of measured value Quality assurance system DIN ISO 9001/EN 29000 Material of field housing Macrolon (polycarbonate + 20% glass fiber) Permissible relative humidity 10 ... 95%, no condensation Weight 2.5 kg field housing Error limits • with pH/ORP measurement • with temperature compensation 3/8 HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X Communication Options Option HART PC/laptop or HART communicator with SIPAN 32 and SIPAN 32X analyzer Load with connection of HART modem 250 ... 500 Ω Load with connection of HART communicator 250 ... 500 Ω SIPAN 32X with explosion protection Explosion protection to ATEX Guideline 94/9/EC, DIN EN 50014 and DIN EN 50020 Line Two-wire, screened: ≤ 1.5 km Protocol HART, version 5.1 2nd passive analog output 0/4 ...20 mA linear to second measured value to temperature, or contact for flushing function or limit or warning (pre-alarm) Input resistance of high-resistance inputs pH 1 >1012 Ω, pH 2 >1012 Ω Type of protection “Intrinsic safety”, II (1) 2 G EEx ib[ia] IIC T4 Permissible ambient temperature during operation -20 ... +60 °C Output signal circuit With type of protection Intrinsic safety only for connection to certified intrinsically-safe circuits with the following maximum values: Ui = 30 V, Ii = 100 mA, Pi = 750 mW, Ri = 300 Ω Option PROFIBUS PA Power supply, bus voltage Supplied by bus, 9 to 32 V (non Ex), 9 to 24 V for intrinsically safe operation Power consumption of the unit I = 13 mA ± 1 mA • Max. current increase in case of error I + 3 mA (electronic current limitation) (Imax. = 16 mA) I + 27 mA (additional fuse) (Imax. = 40 mA) • Communication PROFIBUS PA (IEC 61158 CPF3 CP3/2) Physical bus: IEC 61158-2 MBP(-IS) Polarity independent • C2 connection 4 connections to Master Class 2 are supported • Unit profile PROFIBUS PA, Profile B, Version 3.0 • Unit address 126 at delivery HACH LANGE 3/9 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X Ordering data Order No. Ordering data Order No. SIPAN 32 analyzer two
wire system, for pH or ORP measure
ments Single measurement: 1 x pH or 1 x ORP, membrane keyboard with LC display, menu control, logbook, measured-value display, temperature compensation, 1 parameter set, microprocessor-controlled, in field housing 7MA 1 0 4 0
8 A■ SIPAN 32X analyzer with Ex protection, intrinsically safe version, II (1)2 G EEx ib [ia] II C T4, two
wire system, for pH or ORP measure
ments Single measurement: 1 x pH or 1 x ORP, membrane keyboard with LC display, menu control, logbook, measured-value display, temperature compensation, 1 parameter set, microprocessor-controlled, in field housing 7MA 1 0 4 1
8 A■ A Standard version, 1 signal output: 4 to 20 mA 1 signal output: 4 to 20 mA, with HART interface 2 signal outputs, with HART interface: • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to 20 mA Temperatur or switching function for limit or flushing or warning PROFIBUS PA, 4 parameter sets B C D Standard version, 1 signal output: 4 to 20 mA 1 signal output: 4 to 20 mA, with HART interface 2 signal outputs, with HART interface: • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to 20 mA Temperatur or warning PROFIBUS PA, 4 parameter sets A B C D Ordering data Order No.. Ordering data Order No. Analyzer SIPAN 32 two
wire system, for pH or ORP measure
ments Double measurement: 2 x pH or 2 x ORP, or 1 x pH and 1 x ORP membrane keyboard with LC display, menu control, logbook, measured-value display, temperature compensation, 1 parameter set, microprocessor-controlled, in field housing 7MA 1 1 4 0
8 A■ SIPAN 32X analyzer with Ex protection, intrinsically safe version, II (1)2 G EEx ib [ia] II C T4, two
wire system, for pH or ORP measure
ments Double measurement: 2 x pH or 2 x ORP, or 1 x pH and 1 x ORP membrane keyboard with LC display, menu control, logbook, measured-value display, temperature compensation, 1 parameter set, microprocessor-controlled, in field housing 7MA 1 1 4 1
8 A■ 2 signal outputs • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to20 mA for pH or ORP 2 signal outputs: 4 to 20 mA with HART interface PROFIBUS PA, 4 parameter sets B C D Certificate according to DIN 55350-18-4.1.1 for SIPAN Analyzer on request. Please order together with the analyzer in cleartype. Order No. Isolating power supply (see FI 01, Part 6, for technical data) HART version with Ex protection EEx ia IIC, Smart, with 24 V AC/DC power supply, compact subassembly, DIN rail mounting HART version with Ex protection EEx ia IIC, Smart, with 95-253 V AC power supply, compact subassembly, DIN rail mounting 3/10 HACH LANGE 2 signal outputs • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to20 mA for pH or ORP 2 signal outputs: 4 to 20 mA with HART interface PROFIBUS PA, 4 parameter sets Accessories/mounting material B C D Order No. For mounting the analyzer on a pipeline 7NG4122
1AA10 7NG4122
1BA10 Protective hood (SS, type No. 1.4571) with base plate C79451
A3177
D12 Pipe clamp (SS, type No. 1.4571) 7MA8500
8DG Base plate (SS, type No. 1.4571) C79451
A3177
D11 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X ■ Dimensional drawings 10 172 D-D 20.5 D Æ 13 Æ 6.5 5 269 286±0.2 1) 306 94 105,5 D 0 R1 ca 30 16.5 94 152±0.2 1) A Bushings (3 x PG 11) knockout if required PG 13.5 SW 24 PG 11 SW 22 1.7 19.5 26.5 80 17 View A 1) 3 fixing bores (M6) SIPAN 32 analyzer, dimensions in mm HACH LANGE 3/11 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X ■ Schematics Electric sensor connections for pH or redox potential measurement SIPAN 32, SIPAN 32X SIPAN 32, SIPAN 32X 10 11 12 Pt100 Pt1000 ER 15 16 17 18 19 10 11 12 15 16 17 18 19 Equipotential bonding Equipotential bonding pH or redox Comb. electrode with special cable* Measured medium Pt100 Pt1000 ER Ref. pH or redox Measured medium *) Special cable means double-shielded cable (e.g. 7MA8500-8DP) ER: alternative equivalent resistance 100-120 W Electric sensor connections for pH or redox potential measurement with sensor monitoring SIPAN 32, SIPAN 32X 7MA114x-8Ax 10 11 12 Pt100 Pt1000 ER 15 SIPAN 32, SIPAN 32X 7MA114x-8Ax 16 17 18 19 Redox comb. electrode Redox comb. electrode Measured medium 10 11 12 15 16 17 18 19 External screen not connected pH combination pH combination Pt100 electrode 1 electrode 2 Pt1000 with special cable with special cable ER Measured medium ER: Equivalent resistance 100-120 W Electric sensor connections for redundant pH or redox potential measurement, 2 pH sensors in one measured medium with sensor monitoring ✍ Please look at the current product list attached, if the product is still available. 3/12 HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X 15 6 4 3 5 1 3 Measured medium 2 16 17 18 19 9 VI 12 2 WH electrode pH combin. electrode 1 with special cable ** 7MA8500-8DP 10 11 BN * Redox comb. External screen not connected BU 16 17 18 19 BN Pt100 Pt1000 ER 15 BK 12 GN 10 11 SIPAN 32, SIPAN 32X 7MA114x-8Ax OR SIPAN 32, SIPAN 32X 7MA114x-8Ax 8 1 Ü Number rings 5 Ü Plug 4 assignment Electrode plugs Screen Pt1000 * Reference electrode of redox combination electrode (reference electrode of the pH combination electrode is not used) cable means double-shielded cable ** Special (e.g. 7MA8500-8DP) ER: alternative equivalent resistance 100-120 W Screen Center Refer. Meas. point electrode electrode electrode Differential pH sensor 7MA8500-8FM Legend of colors OR VI orange violet GY gray WH white BN brown BU blue YE yellow GN green BK black Electric sensor connections, on left for simultaneous pH or redox potential measurement, on right differential pH sensor with sensor monitoring HACH LANGE 3/13 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 32 and SIPAN 32X Communication between SIPAN 32 with HART modem and PC Note: When the SIPAN 32 is used with two measuring electrodes (pH + pH, pH + ORP, ORP + ORP), observe that the two electrodes and the temperature sensor are in the same medium because only one reference electrode is used for both measuring electrodes. the two measuring electrodes (pH + pH, pH + ORP) always must be calibrated together. 3/14 HACH LANGE Analyzer for pH Value and Redox Potential SIPAN 34 3/16 3/16 3/16 3/18 3/19 3/22 3/24 3/25 3/27 Overview Benefits Application Design Function Technical data Ordering data Dimensional drawings Schematics HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 ■ Application The SIPAN 34 measuring equipment can be used to measure the pH value and/or redox potential of aqueous solutions. The application range for pH measurements covers the complete pH scale (see Fig.) from pH = 0 to pH = 14 and for redox potential measurements from -2000 mV to +2000 mV. Acidic solutions Strong Weak Neutral Weak ■ Benefits Usefulness of SIPAN 34 • Four-wire connection • Sensor diagnosis • Redundant pH measurement with 2 pH electrodes (increased safety, reduced maintenance costs) • Standard buffer stored for selection • Automatic measured-value hold at calibration • Logbook to document all important events • Local control following NAMUR • Use of all commercial pH and redox glass electrodes • Differential pH sensors made of enamel (with two high impedance inputs) can be used • Field housing IP65 • Panel housing IP54 • Second output for measured value or temperature (option). Alkaline solutions SIPAN 34 for pH value and redox potential Strong pH value Substance [H3O+] 0 5% hydrochloric/accu acid 100 Strong 1 Gastric juice 2 Lemon juice/vinegar 3 Fruit juices 4 Wine 5 Coffee (black) 6 Mineral water/rain water 7 Water (pure)/milk (fresh) 10-7 Neutral Acidic solutions ■ Overview Weak 8 Sodium bicarbonate solution 9 Borax solution 10 Soap solution 11 Film developer 12 Ammonium hydroxide 13 Quicklime solution 14 Sodium hydrox. sol. 10% 10-14 pH value Substance Weak Alkaline solutions Flüssigkeitsanalysengeräte [H3O+] Strong Measuring equipment SIPAN 34, pH scale, examples pH measurement pH measurements are carried out in aqueous solutions for the following purposes: • Manufacture of a product with defined characteristics • Cost-saving production • Protection of mankind, environment and material from damage • Satisfy statutory requirements. In the case of processes with varying temperatures, measurements are usually carried out with temperature compensation because the pH value changes with temperature according to the Nernst equation. Redox potential measurement Redox potential (ORP) measurements permit statements to be made on the oxidation or reduction power of an aqueous solution. Metal combination electrodes (platinum or gold) are used for the measurements and can be installed in the same fittings as the pH sensors. 3/16 HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 Applications • Monitoring of automatic sewage detoxification • Monitoring of electrolytic baths and bleaching baths • Measurements on developers with reducing action, and starting products for dyestuffs, e.g. methylene blue, anthraquinone sulphonate, indigo sulphate and naphthoquinone • Monitoring of disinfection action in swimming pools. Application field Special characteristics • Use of combination electrodes with integrated Pt1000 temperature sensor for applications where only one mounting location is available • Special, robust and low-maintenance electrodes for complex measurements in the food/paper industries and in flue gas desulphurization plants • Sterilizable electrodes for the food and pharmaceutical industries • Low-maintenance electrodes with polymer or gel electrolytes which are insensitive to contamination • Electrodes for installation in pipes or vessels where the measured medium is under pressure • Replacement fittings for inline installation in reactors or process lines • Automatic sensor cleaning • All versions with explosion protection for zone 1/event. zone 0 • Refillable electrode for use in water with low grade ion concentration. Application example Biology, medicine, bacteriology Fermenter (antibiotics) Breweries and yeast factories Brewing water, mash, fermentation (favourable growth of yeast), cleaning solutions (CIP) Chemical industry Fat synthesis (saponification of fatty acids), esterification of alcohols, formation of aldol (production of plastics, etc.), condensates and waste water in refineries, glue, gelatine and soap manufacture, production of acids and alkaline solutions, chlor-alkali electrolysis Electrical engineering, electroplating Electrolytic capacitors, electrolytic baths, waste water Tanneries Steeping the skins, alkalinity of the lime-pit, decalcification, staining, tanning, bleaching, dying Rubber industry Stability of latex Iron and steel works, coke ovens, gas works Ore preparation (flotation), gas purification (sulphur removal), waste water and water purification Power plants Avoidance of corrosion in steam circuit, waste water control Food industry Preservation of fruit juices, gelatinization of jams, souring of milk, cheese preparation, maturing of cream, yogurt production, sugar factories: purification and refining of juices (pre-separation and saturation), inversion of glucose, fermentation of molasses, press water, breweries Paper, cellulose, rayon and explosives industries Water treatment, sulphite liquor, bleaching, soaping and wash baths, sizing with resin soap and aluminium sulphate, neutralization of waste water Pharmaceutical industry High-purity water, fermentation process, product quality Textile industry Cleaning (soap) baths, bleaching baths, dye baths (efficiency, hue), wash water (acid-free to avoid spots) Hydroeconomy Sewage treatment plants (optimum growth conditions in biological stages), river water (monitoring of sewage ingress because of danger to fish), sedimentation and precipitation of colloidal suspensions, softening of water (optimum precipitation), neutralization with lime (danger of corrosion for pipes and concrete tanks), base exchange methods (Permutite, Wolfatite) Oil and gas Acidic water from power refiner or flare zone, biological sewage preparation, water charge by NH3, H2S and hydrocarbons of low viscosity HACH LANGE 3/17 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 ■ Design SIPAN 34 Not Ex zone Display Keyboard pH/ORP 0 / 4 ... 20 mA EPROM EEPROM pH / ORP D/A Temperature 0/4 ... 20 mA Limit 1 pH / ORP Limit 2 Diagnosis: alarm A/D Warning Function check Temperature Range signalling D/D Range signalling Range signalling or Option Cleaning Mains Fitting Flushing D/D Range switching Basic version Option SIPAN 34 analyzer, mode of operation The SIPAN 34 measuring equipment consists of: • a sensor (measuring and reference electrodes, usually as combination electrode) • a flow, immersion or replacement fitting • a temperature sensor (Pt1000 or Pt100) with temperature-compensated pH measurements • a SIPAN 34 analyzer. The measured signal delivered by the sensor is processed in the SIPAN 34 analyzer and at disposition in analog form. SIPAN 34 are analyzers of the new four-wire generation with stateof-the-art micropower technology with microprocessor control and multi-segment display. The signals delivered by the analog input amplifiers are processed into a temperature-compensated value by the digital data processing function. 3/18 HACH LANGE The SIPAN 34 analyzers are available in field and in panel housings. A SIPAN 34 analyzer can be parameterized for all measuring ranges. Measured
value processing Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 pH value ■ Function A potential depending on the concentration of hydrogen ions in the measured medium is generated on the pH sensor. The voltage between the pH electrode and the reference electrode is described by the Nernst equation: U = Uo + 2.3RT/F x lg aH3O+ Sensors The pH value is defined as the negative decimal logarithm of the hydrogen ion activity "a" (simplified: hydrogen ion concentration c) pH = -log a H3O+ The voltage which is proportional to the pH value is converted by the transmitter into a standardized output signal of 58.16 mV per ∆pH = 1 (at 20 °C). and indicates whether a solution (the measured medium) is acidic, neutral or alkaline. ORP value An assembly comprising a measuring electrode (glass electrode) and reference electrode is used to measure the pH value (see Fig.). The redox potential measurement determines the reduction or oxidation power of a solution. Oxidizing agents take up electrons, reducing agents give up electrons. The process is an equilibrium reaction: Ox+ + e- ↔ Red The resulting potential U between the reference and measuring electrodes is applied to the analyzer as a proportional voltage. There is no temperature compensation. Basic analyzer Options Inputs pH/Redox Temperature Remote range switching for 4 parameter sets, thus access to 4 complete parameter sets for complete methods incl. measuring ranges, limits, temp. compensation, hysteresis Outputs Analog output 2nd analog output for second measured value or temperature Contacts 1 x failure 1 x limit 2 x NAMUR contacts Second 2 limits limit with control function In the measuring electrode, use is made of the dependence of the potential of the glass membrane on the hydrogen ion activity. A spherical glass membrane as the pH sensor is usually joined by melting onto the end of the glass shaft. This sphere is filled with a buffer solution of known pH (usually pH 7.0). The tapping electrode is immersed into the glass sphere. The potential difference between the inner and outer surfaces of the glass membrane is used for the pH measurement. The reference electrode has electrical contact to the measured medium via a diaphragm so that the circuit is closed via the measured solution. The Ag/AgCl tapping system is located in a KCl electrolyte which may be liquid or bound to a gel-type or polymer carrier material. The measuring and reference electrodes must always have the same tapping system. They can also be supplied as combination electrodes and thus require only one mounting location. The Pt100/1000 sensor for temperature compensation can also be integrated in the combination electrode. Combination electrodes with integrated Pt100/1000 are preferably used in replacement or immersion fittings in which only one mounting location is available. Reference electrodes with a liquid electrolyte can be filled with KCl via a filling opening and subjected to pressure if necessary. 3 x cleaning or 3 x range signaling contacts Functions HACH LANGE 3/19 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 Analyzer SIPAN 34 Mains U I Output signal 0/4 ... 20 mA Power supply Reference electrode Measuring electrode Diaphragm Measured medium Mode of operation of pH sensors Special characteristics of SIPAN 34 • Four-wire analyzer with extremely easy operation • Universal power supply (24 V AC/DC, 115 V AC, 230 V AC) • Complete basic configuration • Self-explanatory menu operation in plain text in five languages, without Instruction Manual, HELP function • Operation according to NAMUR, i.e. complete local operation with directly accessible keypad with 8 keys and large, illuminated, full-graphic display • Display of pH, mV, additional permanent bargraph of measuring range • Graphic trend display of measured value • Additional permanent temperature display in °C • Output signal 0/4 to 20 mA, floating • Freely-programmable, permanent measuring-point designation (saves TAG labels) • Logbook with entry of faults or calibration procedures with date and time • Sensor monitoring • Fault and limit contacts • Automatic recognition of buffer (NIST and technical buffers) • Maintenance switch with automatic HOLD function • Comprehensive fault diagnosis and preventive maintenance system in plain text • Three operating levels with coded protection for monitoring, routine and specialists • Selectable tests for: keys, RAM, EPROM, EEPROM, display • Output of freely-defined current values for test purposes • Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection • Panel housing made completely of metal, CE safety for every control cabinet installation engineer • Robust field housing (IP65) with cable screwed glands for easy connection. Additional, optional characteristics • Second current output for measured value or temperature with additional limit • Four parameter sets with remote selection for complete methods, not only for measuring ranges, e.g. also limits, temperature compensation, hysteresis • Automatic cleaning function (3 relays) for cleaning, flushing, fitting control with cyclic time input, waiting and holding functions • Two-point controller for pulse length (dosing valves) or pulse frequency (diaphragm pumps) • Additional switching contact for maintenance (function check) and pre-alarm (warning) • Redundant pH or ORP measurement with 2 measured-value outputs for increased measuring reliability. pH sensors, cross-section 3/20 HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 SIPAN 34 analyzer, display and control panel HACH LANGE 3/21 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 ■ Technical data Display Measuring impedance Graphical • Measured value Four 15-mm digits or trend display 5 bars, 3 mm high • Glass electrode 5 ... 1000 MΩ • Reference electrode 1 ... 100 kΩ Error limits • with pH/ORP measurement <0.03 pH or 2 mV • Temperature, alarms, measuringpoint identification 3-mm digits Current output as bargraph, 3 mm high • with temperature compensation < 0.5% of measured value Influencing effects on mea
sured value According to DIN IEC 746, Part 1 • Operator control 8 lines of text 1 heading (inverted display) and 6 text lines, letters 4 mm high • Repeatability <0.2% of full-scale value • Linearity <0.01 pH or 1 mV • Ambient temperature <0.02 pH/10 K or 1 mV/10 K • Illumination LED • Power supply <0.01 pH or 1 mV Languages 5: German, English, French, Italian, Spanish; selectable • Load <0.01 pH/100 Ω or 1 mV/100 Ω • Zero error <0.01 pH or 1 mV Coding 3 coding levels for operations (display level, user level, specialist level) Output signal 0/4 ... 20 mA, linear to measured value Dimension pH, mV Measuring range -3 ...+15 pH, -2000 ...+2000 mV (observe technical data of sensors) Measuring span (expansion) Any, but at least 10% of smallest measuring range Output range Temperature compensation Measuring range for temperature Max. permissible load in Ω 750 Test voltage 500 V AC, 50 Hz, 1 min Limit 1 NO or 1 NC contact selectable, hysteresis and response time can be set Optionally selectable between 0 and maximum full-scale value Alarm contact 1 alarm (failure) Diagnostic contacts Two, pre-alarm and maintenance Input: Pt100/Pt1000, automatic selection, two-wire or three-wire system Compensation of Nernst voltage, automatic, manual, adjustable temperature Relay contacts Rating 24 V DC, 1 A Logbook Automatic recording of warning and failure messages with date and time, 20 entries with overflow, nonerasable Data storage >10 years (EEPROM) Device self-test Testing of RAM, EPROM, EEPROM, display, keyboard, data can be called on display -25 ... +175 °C, -13 ... +347 °F Measuring span for temperature Any, but at least 10% of smallest measuring range Electrical isolation nput and output electrically isolated Input resistance • Glass electrode >1012 Ω • Reference electrode >1010 Ω Clock Software clock Protection According to IEC 79-15; conformity certificate Identification CE marking Temperature and mechanical stress Offset current • Glass electrode <5⋅10-12 A (at 20 °C) • Reference electrode <1⋅10-10 A (at 20 °C) • Operation - Temperature Electrodes • Electrode assembly zero point pH 0 ... 14 • Slope range 50 ... 60 mV (per ∆pH = 1) at 20 °C Isothermal intersection Uis -1000 ... +1000 mV - Mechanical stress • Storage HACH LANGE -20 °C ... +60 °C corresponds to 3K6 but lowest temperature –20 °C without condensation -5 °C ... +70 °C corresponds to 3K3 but highest temperature +70 °C for panel mounting 3M2 DIN EN (IEC) 60721-3-1 - Temperature -25 °C ... +70 °C corresponds to 1K4 but highest temperature +70 °C - Mechanical stress 1M2 • Transport 3/22 DIN EN (IEC) 60721-3-3 DIN EN (IEC) 60721-3-2 - Temperature -25 °C ... +70 °C corresponds to 2K3 - Mechanical stress 2M2 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 Water protection EMC DIN EN (IEC) 60529 IP65 for field devices IP54 for panel mounting Options Second output signal 0/4 ... 20 mA linear to second measured value or to temperature DIN EN (IEC) 61326 and NAMUR NE 21 Additional limit 1 x NO or NC contact selectable, any assignment to measured value or temperature Parameter sets 4 Range signalling Signalling of current measuring range (3 contacts) Cleaning contacts with timer 3, fitting control, cleaning and flushing Range switchover 4, parameterizable as desired using range selection; external control possible Controller 2 floating contacts (instead of limits) as PI controller • pH electrode pH 1 >1012 Ω, pH 2 >1012 Ω • Reference electrode >1010 Ω Electrical safety DIN EN (IEC) 61010-1 Quality assurance system DIN ISO 9001/EN 29000 Material of field housing Macrolon (polycarbonate + 20% glass fiber) Material of panel housing Aluminium Permissible relative humidity 10 ... 95%, no condensation Power supply 120 V AC (94 V ... 132 V), 48 ... 63 Hz, 10 VA 230 V AC (187 V ... 264 V), 48 ... 63 Hz, 10 VA 24 V AC (20 V ... 26 V), 48 ... 63 Hz, 10 VA 24 V DC (20 V ... 30 V), 8 VA, protection class II (field housing) Weight 2.5 kg field housing 2.0 kg panel mounting housing HACH LANGE 3/23 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 Ordering data Order No. Analyzer SIPAN 34 four
wire system, for pH or ORP measurements microprocessor-based with illuminated graphic display, membrane keyboard, trend display, menu-based operation (5 languages), logbook, temperature compensation, 1 parameter set, 1 signal output 0/4 to 20 mA, 1 alarm contact, 1 limit contact, 2 diagnostic contacts 7MA 1 0 3 4
Power supply • 24 V DC/24 V AC, 48 ... 63 Hz • 120 V AC, 48 ... 63 Hz • 230 V AC, 48 ... 63 Hz ■■■■ 0
0 ■■ 0 0 1 2 Measuring procedure • 1 x pH- or 1 x redox input A • 2 x pH inputs 1) B • 1 x pH- and1 x redox input or 2 x redox inputs 1) C Instrument design • Field housing • Panel housing 96 x 96 A B Without additional option 0 With second signal output 0/4 ... 20 mA, and second limit 1 With four selectable parameter sets and three range signalling contacts 2 With second signal output 0/4 ... 20 mA and with four selectable parameter sets and three range signalling contacts 3 Limits with controller function • Without • With Automatic cleaning/flushing (3 contacts + timer for fitting, cleaning, flushing) • Without • With Accessories/mounting material A B A B 1) The measuring procedures B and C require analyzers with the additional options 1 or 3, because the second output (for the second measured value) would not be at disposal. Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on request. Please order together with the analyzer in cleartype. 3/24 HACH LANGE Order No. For mounting the analyzer on a pipeline Protective hood (SS, type No. 1.4571) with base plate C79451
A3177
D12 Pipe clamp (SS, type No. 1.4571) 7MA8500
8DG Base plate (SS, type No. 1.4571) C79451
A3177
D11 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 ■ Dimensional drawings 10 172 D-D 20.5 D Æ 13 Æ 6.5 5 269 286±0.2 1) 306 94 105,5 D 0 R1 ca 30 16.5 94 152±0.2 1) A View A PG 13.5 SW 24 PG 11 SW 22 1.7 19.5 26.5 80 17 Bushings (3 x PG 11) knockout if required 1) 3 fixing bores (M6) SIPAN 34 analyzer as field housing, dimensions in mm HACH LANGE 3/25 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 16 1 30 90 15 96 15 100 90 1 90 9 11 15 96 0 ... 6 18 8 67 282 SIPAN 34 analyzer as panel mounting instrument, dimensions in mm 3/26 HACH LANGE Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 ■ Schematics Electric sensor connections for pH or redox potential measurement SIPAN 34 7MA1034-.A..0-0..0 23 24 25 Pt100 Pt1000 ER 26 27 28 29 SIPAN 34 7MA1034-.A..0-0..0 30 23 Equipotential bonding pH or redox Comb. electrode with special cable * Measured medium 24 25 26 27 Equipotential bonding Pt100 Pt1000 ER 28 29 30 Ref. pH or redox Measured medium *) Special cable means double screened cable (e.g. 7MA8500-8DP) ER: alternative equivalent resistance 100-120 W Electric connections ✍ Please look at the current product list attached, if the product is still available. HACH LANGE 3/27 Liquid Analysis Measuring equipment for pH value and redox potential SIPAN 34 Electric sensor connections for redundant pH and/or redox potential measurement with sensor monitoring, 2 pH sensors in one measured medium Electric sensor connections, on left for simultaneous pH or redox potential measurement, on right differential pH sensor with sensor monitoring Note: When the SIPAN 34 analyzer is used with two measuring electrodes (pH + pH, pH + ORP, ORP + ORP), observe that the two electrodes and the temperature sensor are in the same medium because only one reference electrode is used for both measuring electrodes. the two measuring electrodes (pH + pH, pH + ORP) always must be calibrated together. ✍ Please check availability within attached product list. 3/28 HACH LANGE Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X 4/2 4/2 4/3 4/5 4/6 4/9 4/11 4/12 4/13 Overview Benefits Application Design Function Technical data Ordering data Dimensional drawings Schematics HACH LANGE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X Flüssigkeitsanalysengeräte ■ Overview ■ Benefits The SIPAN 32 and SIPAN 32X measuring equipment is designed to determine the concentration of oxygen in aqueous solutions within wide concentration ranges. SIPAN 32 for the measurement of dissolved oxygen 4/2 HACH LANGE Benefits of SIPAN 32 and SIPAN 32X • Two-wire technology • Sensor diagnosis • Automatic Hold function • Logbook to document all important events • Local operation following NAMUR • PROFIBUS PA or HART communication available • Available as Ex variant (EEx ib [ia]) • Field housing IP65 • Second, passive output, freely parameterizable (for temperature (analog) or pre-warning/purging function/limit (binary)) • Manual correction of atmospheric pressure during calibration. Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X ■ Application Very clean Utilization • Monitoring of very low oxygen concentrations in the steam circuit of steam generating plants to prevent corrosion • Checking of the oxygen content of food, especially for monitoring storage life in the drinks industry • Oxygen concentration as a decisive parameter for the environmental analysis of rivers and lakes • Oxygen measurements in sewage treatment plants up to very high concentrations in the aeration tank • Monitoring of the O2 requirement of microorganisms in biotechnology • Checking the oxygen concentration in chemical processes, also in potentially explosive atmosphere. 1 µg/l Product characteristics • Almost independent of flow rate (minimum flow only 0.005 m/s), dependent on sensor • Extremely long service life • Automatic sensor monitoring and regeneration display • Fast replacement of membrane as result of robust special membrane, insensitive to contamination • O2 sensor for food applications can be sterilized and can be fitted in a bypass or inline using an attachment fitting or a replacement fitting • Single-point calibration of sensor using air (sensor is free of residual current) • No calibration liquid required • Design with explosion protection for zone 1. 1 mg/l 10 mg/l Ultra-pure water 60 mg/l Dirty 50 µg/l Waste water, fish farming 20 mg/l Sterilizable 1 µg/l Chemistry, food & beverage 1 µg/l 10 µg/l 100 µg/l 1 mg/l 10 mg/l 100 mg/l Measuring equipment for dissolved oxygen, selection table according to fields of application Measurement of dissolved oxygen in water • The amount of dissolved oxygen in water may be important for various reasons • We use the polarographic measuring procedure for the different fields of application for oxygen measurements which differentiate by three to four orders of magnitude. Measurement of dissolved oxygen in boiler feedwater (ultra
pure water) Measured medium with low concentrations of 1 µg/l to 10 mg/l dissolved oxygen It is important that there is as little oxygen as possible in the water of steam circuits of large power plants to prevent damage caused by corrosion. The dissolved oxygen should be monitored there with an order of magnitude µg O2/l water. In these water/steam circuits, water with an extremely low contamination is required to prevent deposits which could lead to a reduction in economy and to faults. Such ultra-pure water is aggressive. A layer of insoluble Fe3O4 is formed in the pipelines and therefore builds up a protective layer. However, if dissolved oxygen is present in a water/steam circuit, it is assumed that this protective layer is attacked at the high temperatures and pressures which exist, and that damage due to corrosion may result following further effects of the dissolved oxygen. Such trace measurements can only be carried out with great difficulty in a laboratory since sampling completely free of oxygen is difficult. Furthermore, the time intervals are usually too great if it is considered that even completely invisible leaks can already easily lead to a dangerous oxygen concentration of 100 µg O2/l which would probably be detected too late by occasional laboratory measurements. HACH LANGE 4/3 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X Therefore industrial measuring instruments are appropriate for such cases. Such instruments should require little maintenance to provide economic use and high operational reliability, and they must also be highly sensitive trace analyzers. The feedwater inlet upstream of the boiler is recommendable as the measuring location, although measurements are occasionally also made upstream of the feedwater pump because it is then unnecessary to have expansion equipment. A second measuring location is the outlet line from the condenser. The measurement is important here in order e.g. to rapidly detect leaks on the condenser and the machine. Similar or even higher water quality demands are placed during semiconductor (chip) manufacturing. Measurement of dissolved oxygen in rivers, lakes and waste water Measured medium with medium concentrations of 50 µg/l to 60 mg/l dissolved oxygen In this case, the dissolved oxygen in the water is essential to preserve life. Sufficient quantities of dissolved oxygen must be present in rivers or lakes to preserve animal life and the biological equilibrium. In sewage treatment plants, oxygen must even be introduced into the waste water to preserve and promote bacterial cultures for the biological decomposition of contaminants in the water. Economical operation is also an important factor here. In these cases, the oxygen concentration has an order of magnitude of several mg O2/l. The increasing contamination of rivers and lakes by toxic materials, organic and inorganic ballast, and by increased water temperatures resulting from the use of cooling plants means that water monitoring is becoming increasingly important. The main task of such monitoring is to guarantee biological equilibrium by using appropriate measures. This equilibrium is essential to preserve animal life and to prevent the contamination of surface water for drinking and service purposes. 4/4 HACH LANGE One of the most important measured variables is the dissolved oxygen, where concentrations of several mg O2/l must be measured. In addition to mechanical cleaning, biological clarification is used in sewage treatment plants to break down organic compounds using bacteria. A dissolved oxygen concentration of approx. 1.5 to 2.5 mg O2/l must be present in the waste water to activate and sustain this treatment process. This oxygen is passed mechanically into the aeration tanks using air. The energy required for input of air/oxygen is quite significant, and the amount of oxygen entered should therefore be carried out as economically as possible. Measurement of the dissolved oxygen in the waste water is therefore necessary. Measurement of dissolved oxygen in the food industry and in biotechnology process plants Measured medium with medium concentrations of 10 µg/l to 20 mg/l dissolved oxygen A long storage life for manufactured products is becoming increasingly important in the food industry for economy reasons. For this reason, the individual parameters must be strictly checked in the production plants. The amount of dissolved oxygen is of decisive importance for the storage life of a number of products. For example, a typical value for freshly filled beer is 20 µg/l, and a lower amount increases its life. This is particularly important if beer is brewed according to the German beer purity regulations which forbid the addition of conservation agents. It is important to exactly control the process sequence of biotechnology plants. An important variable is the amount of dissolved oxygen. Since food and biotechnology plants are sensitive to foreign germs, all used components must have a sterilizable design. Cleaning using steam sterilization is carried out regularly at defined intervals. It is therefore important to have a temperature-stable design of the wetted parts materials. Our stainless steel components have been proven as suitable for this technology. Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X ■ Design Ex zone 0*) Ex zone 1**) Ex zone 2**) Not Ex zone Not Ex zone SIPAN 32 not Ex zone SIPAN 32X Ex zone 1 Ex zone 2 Keyboard Display Mains EPROM O2 4 ... 20 mA Isolating power supply HART interface 4 ... 20 mA EEPROM O2 Mains A/D D/A Temperature D/D Temperature 0/4 ... 20 mA or Limit signal 0/4 ... 20 mA or Cleaning signal 0/4 ... 20 mA or Warning 0/4 ... 20 mA PROFIBUS PA Isolating power supply 0/4 ... 20 mA DP/PA coupler DP/PA link Basic version Option External device *) Only sensors with ATEX approval and in conjunction with SIPAN 32X **) Only with SIPAN 32X SIPAN 32 and SIPAN 32X analyzers, mode of operation The SIPAN 32 and SIPAN 32X measuring equipment consist of: • a sensor • a flow, immersion or replacement fitting • a temperature sensor • a SIPAN 32 or SIPAN 32X analyzer. SIPAN 32 and SIPAN 32X are analyzers of the new two-wire generation with state-of-the-art micro-power technology with microprocessor control and multi-segment display. The SIPAN 32 and SIPAN 32X analyzers are optionally available with special features for process use. The SIPAN 32 and SIPAN 32X analyzers are available in field housing. They contain the analog and digital data processing functions for the signal delivered by the sensor. A SIPAN 32 or SIPAN 32X analyzer can be parameterized for all measuring ranges. HACH LANGE 4/5 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X Basic analyzer Options Inputs O2 value HART or PROFIBUS PA interface ■ Function Water free of oxygen absorbs oxygen when in contact with atmospheric air depending on the atmospheric pressure and the temperature until a state of equilibrium has been reached, i.e. the partial pressure of oxygen in the water is equal to that of the surrounding air. The sensors which can be combined with the SIPAN 32 analyzers operate according to the polarographic principle. Temperature The so-called Clark sensors basically consist of a precious metal working electrode (cathode), a silver reference electrode (anode) and a membrane which is permeable to oxygen. Outputs Analog output 4 ... 20 mA with alarm > 21 mA 2nd analog output for temperature or contact for flushing function or limit value or warning (not for PROFIBUS PA) Functions Measured
value processing The signals delivered by the analog input amplifiers are processed into a temperature-compensated value by the digital data processing function. Oxygen Oxygen is reduced by the polarization voltage present between the working and reference electrodes according to the simplified equation: O2 + 2H2O + 4e- → 4OH- The analyzer delivers a constant polarization voltage at the cathode. The O2 molecules diffusing through the FEP or PTFE membrane are reduced at the gold cathode, and at the same time anode metal (silver) passes into solution in the electrolyte following oxidation. Thus the circuit between the anode and cathode is closed by the passage of ions via the electrolyte. The resulting current is proportional to the partial pressure of oxygen in the measured medium and is measured by the amplifier. The quantity of oxygen diffusing through the membrane per unit of time not only depends on the external partial pressure of oxygen but also on the temperature of the membrane. To permit temperature compensation, a temperature sensor (NTC thermistor) is fitted in the oxygen sensor such that it is connected thermally to the measured medium and can therefore signal its temperature to the analyzer. The electrons are supplied by the silver reference electrode, simplified according to: SIPAN 32, SIPAN 32X analyzer 4Ag → 4Ag+ + 4eTemperature compensation U Oxygen: Output signal I The input signal supplied by the sensor is converted into a standardized output signal by a range-dependent amplifier circuit. Temperature: The temperature of the measured medium is converted into a standardized output signal corresponding to a measuring range of the sensor. An NTC resistor is fitted in the sensor as the thermometer. Measured medium Measured medium Gold working electrode (cathode) Silver counter electrode Elektrolyte Membrane O2 O2 O2 O2 Mode of operation of oxygen sensors with two-electrode system 4/6 HACH LANGE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X Calibration and regeneration of the oxygen sensors The sensor is calibrated using a single point (sensor is free of residual current), preferably using air. The sensor is adjusted for 100% saturation. The calibration cycle depends on the conditions of use and the required accuracy. The sensor must be regenerated, i.e. the electrolyte must be refilled and the membrane head replaced, if it can no longer be calibrated or if the membrane is damaged. The microprocessor analyzer operates with a non-linear temperature characteristic which is individually matched to the sensor to permit temperature compensation. Special characteristics of SIPAN 32 • Two-wire analyzer with state-of-the-art micro-power technology • Extremely simple field installation with only two wires • Menu-based operation with understandable symbols (based on IEC) • Complete local operation with directly accessible keypad with 8 keys and large, clearly-arranged multi-segment display • Display of µg/l, mg/l, mbar, ppb, hPA, % saturation • Additional permanent temperature display selectable in °C or °F • Limit monitoring • Software clock • Logbook with entry of faults or calibration procedures with date and time • Output signal 4 to 20 mA • Fault or limit output > 20 mA • Automatic HOLD function • Comprehensive fault diagnosis system • 3 operating levels with coded protection for monitoring, routine and specialists • Selectable tests for: display, keys, RAM, EPROM, EEPROM • Output of defined current values for test purposes • Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection • Robust field housing (IP65/NEMA 4X) with four cable screwed glands for easy connection. Special characteristics of SIPAN 32X • Intrinsic safe operation • Analyzers with type of protection "Increased intrinsic safety" EEx ib[ia] can be used within the potentially explosive atmospheres (zone 1, CENELEC) • With a corresponding Ex approval the measuring electrode can also be used in Zone 0. Product characteristics of SIPAN 32, communication variants Device with 4 ... 20 mA output • Electrical isolation (test voltage 500 V AC) • Output signal 4 to 20 mA • Fault or limit output > 20 mA • Optional second passive output, freely-parameterizable as additional current output, for temperature or contact for flushing function or limit or warning (pre-alarm). Device with 4 ... 20 mA output and HART communication • Completely parameterizable from control system via only one two-wire cable • Additional communication via PC • Output signal 4 to 20 mA • Fault or limit output > 20 mA (additional digital status transmission via HART protocol) • Central access from control system (OS, ES) to any field device using the SIEMENS PCS 7 control system • Uniform operator control and monitoring of all field units (inclusive linked host units) when using SIMATIC PDM • Optional second passive output, freely-parameterizable as additional current output, for temperature or contact for flushing function or limit or warning (pre-alarm). Device with PROFIBUS PA communication • SIPAN 32 PA with bus connection to IEC 61158-2 and EN 50170, Part 4 • Fixed bus current limitation in case of fault • Data transmission and device supply via common bus connection • Communication via PROFIBUS PA (Profile B, Version 3.0); thereby all settings completely parameterizable (up to three synchronous measured values, measuring range, limits, sensor diagnostic, operation simulation, etc.) • Quality indication to the measured values: status with limits • Full measured-value dynamics (discontinuation of measuredrange parameters) • Central access from control system (OS, ES) to each field device using the SIEMENS PCS 7 control system • Uniform operator control and monitoring of all field units (inclusive linked host units) when using SIMATIC PDM • Possibility of a further diagnosis with increased disponibility of plant parts • Savings of installation costs • Interoperability (replacement with parameter conservation possible) • Possibility of automatic tracking of the plant documentation • Possibility of plant optimizing during operation. Parameter sets (option) The analyzer has four parameter sets for four methods that can be set independently from each other. This allows an optimal adaptation in a process when different media have to be measured. Switchover to the correspondent parameter set can be controlled externally (via HART or PROFIBUS PA). HACH LANGE 4/7 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X SIPAN 32, SIPAN 32X analyzer, display and control panel 4/8 HACH LANGE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X ■ Technical data Output signal electrically isolated from sensor, 4 to 20 mA linear to measured value or bilinear to measured value (2 linear partial ranges with a knee at 12 mA), see figure Max. permissible load in Ω R= (U [power supply] – 14 V) / 0.02 A Display • Measured value Four 16-mm digits • Temperature Four 8-mm digits • Text display Five digits • Others Symbol displays Test voltage 500 V AC, 50 Hz, 1 min • Input display Symbols Power supply 14 V DC (14 V ... 30 V), 0.8 W, protection class II Coding 3 coding levels for operations (display level, user level, specialist level) Logbook Unit µg/l, mg/l, mbar, ppb, hPa, % saturation Automatic recording of warning and failure messages with date and time, 20 entries with overflow, non-erasable Temperature units Celsius, Fahrenheit Data storage >10 years (EEPROM) Measuring range observe technical data of sensors Device self-test Measuring span (expansion) Any, but at least 10% of smallest measuring range Testing of RAM, EPROM, EEPROM, display, keyboard Clock Software clock Output range Optionally selectable between 0 and maximum full-scale value Identification CE marking Temperature compensation Dependent on sensor type Measuring range for temperature -50 ... +150 °C, dependent on sensor type Measuring span for temperature Any, but at least 10% of smallest measuring range Compensation of atmospheric pressure Manual input Sensor calibration Manual using air Temperature and mechanical stress • Operation -20 °C ... +60 °C corresponds to 3K6 but lowest temperature –20 °C without condensation - Mechanical stress 3M2 • Storage - Temperature Error limits • Oxygen measurement (at rated conditions) <1.5% of measured value • Temperature (at rated conditions) <0.3 K Influencing effects on measured value According to DIN IEC 746, Part 1 - Mechanical stress • Transport • Repeatability <0.2% of full-scale value • Linearity <0.3% of full-scale value • Ambient temperature <0.2%/10 K DIN EN (IEC) 60721-3-3 - Temperature DIN EN (IEC) 60721-3-1 -25 °C ... +70 °C corresponds to 1K4 but highest temperature +70 °C 1M2 DIN EN (IEC) 60721-3-2 - Temperature -25 °C ... +70 °C corresponds to 2K3 - Mechanical stress 2M2 Water protection DIN EN (IEC) 60529 IP65 for field devices EMC DIN EN (IEC) 61326 and NAMUR NE 21 • Power supply <0.2% of full-scale value Electrical safety DIN EN (IEC) 61010-1 • Load <0.1%/100 Ω Quality assurance system DIN ISO 9001/EN 29000 • Zero error <0.2% of measured value, dependent on sensor type Material of field housing Macrolon (polycarbonate + 20% glass fiber) • Salinity correction Possible Permissible relative humidity 10 ... 95%, no condensation Weight 2.5 kg, field housing Options 2nd passive analog output 0/4 to 20 mA linear to temperature, or contact for flushing function or limit or warning (pre-alarm) SIPAN 32X with explosion protection Explosion protection to ATEX Guideline 94/9/EC, DIN EN 50014 and DIN EN 50020 Type of protection “Intrinsic safety”, II (1) 2 G EEx ib[ia] IIC T4 Permissible ambient temperature during operation -20 ... +60 °C Output signal circuit With type of protection Intrinsic safety EEx ia IIC only for connection to certified intrinsically-safe circuits with the following maximum values: Ui = 30 V, Ii = 100 mA, Pi = 750 mW, Ri = 300 Ω HACH LANGE 4/9 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X Communication Option HART mA PC/laptop or HART communicator with SIPAN 32 and SIPAN 32X analyzer Load with connection of HART modem 250 ... 500 Ω Load with connection of HARTcommunicator 250 ... 500 Ω Line Two-wire, screened: ≤ 1.5 km Protocol HART, version 5.1 20 12 Option PROFIBUS PA Power supply, bus voltage Supplied by bus, 9 to 32 V (non Ex), 9 to 24 V for intrinsically safe operation Power consumption of the unit I = 13 mA ± 1 mA • Max. current increase in case of error I + 3 mA (electronic current limitation) (Imax. = 16 mA) I + 27 mA (additional fuse) (Imax. = 40 mA) • Communication PROFIBUS PA (IEC 61158 CPF3 CP3/2) Physical bus: IEC 61158-2 MBP(-IS) Polarity independent • C2 connections 4 connections to Master Class 2 are supported • Unit profile PROFIBUS PA, Profile B, Version 3.0 • Unit address 126 at delivery 4/10 HACH LANGE 4 KA KK KA Start-of-scale value KK Knee KE Full-scale value Linear and bent characteristic KE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X Ordering data Order No. Ordering data Order No. SIPAN 32 analyzer two
wire system, for the measurement of dissolved oxygen microprocessor-controlled, membrane keyboard with LC display, menu control, measured-value display, logbook, concentration display, temperature compensation, 1 parameter set, in field housing 7MA 3 0 4 0
SIPAN 32X analyzer with Ex protection, intrinsically
safe version, II 2 (1) G EEx ib [ia] II C T4, two
wire system, for the measurement of dissolved oxygen microprocessor-controlled, membrane keyboard with LC display, menu control, measured-value display, logbook, concentration display, temperature compensation, 1 parameter set, in field housing 7MA 3 0 4 1
8 A■ Standard version, 1 signal output: 4 to 20 mA without interface 1 signal output: 4 to 20 mA, with HART interface 2 signal outputs, with HART interface: • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to 20 mA temperature or switching function for limit or flushing or warning PROFIBUS PA, 4 parameter sets A B C D Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on request. Please order together with the analyzer in cleartype. Order No. Isolating power supply (see FI 01, Part 6, for technical data) Standard version, 1 signal output: 4 to 20 mA without interface 1 signal output: 4 to 20 mA, with HART interface 2 signal outputs, with HART interface: • 1st signal output: measured value 4 to 20 mA • 2nd, passive signal output: 0/4 to 20 mA temperature or switching function for limit or flushing or warning PROFIBUS PA, 4 parameter sets Accessories/mounting mate
rial 8 A■ A B C D Order No. For mounting the analyzer or the isolating block on a pipeline HART version with Ex protection EEx ia IIC, Smart, with 24 V DC power supply, p.c.b., single locking 7NG4122
1AA10 HART version with Ex protection EEx ia IIC, Smart, with 95-253 V AC power supply, compact subassembly, DIN rail mounting 7NG4122
1BA10 Protective hood (SS, type No. 1.4571) with base plate C79451
A3177
D12 Pipe clamp (SS, type No. 1.4571) 7MA8500
8DG Base plate (SS, type No. 1.4571) C79451
A3177
D11 HACH LANGE 4/11 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X ■ Dimensional drawings 10 172 D-D 20.5 D Æ 13 Æ 6.5 5 269 286±0.2 1) 306 94 105,5 D 0 R1 ca 30 16.5 94 152±0.2 1) A Bushings (3 x PG 11) knockout if required SIPAN 32 analyzer, dimensions in mm 4/12 HACH LANGE PG 13.5 SW 24 PG 11 SW 22 1.7 19.5 26.5 80 17 View A 1) 3 fixing bores (M6) Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X ■ Schematics SIPAN 32, SIPAN 32X analyzer 2 + 3 4 5 + 6 - 7 8 - 9 + 10 11 12 13 14 15 16 17 18 19 ö ý ø ö ý ø ö ý ø 1 - 20 mA 24 V DC passive1) 4-20 mA Option not HART used PROFIBUS PA Sensors ö ý ø SIPAN 32, SIPAN 32X SIPAN 32, SIPAN 32X NTC NTC O2 sensor, Oxyferm VP ® 7MA3100-8HD O2 sensor 7MA3100-8CA WH YE/GN ö ý ø GN BU YE Screen RD 12 13 14 15 16 17 18 19 Transp. 12 13 14 15 16 17 18 19 BN SIPAN 32, SIPAN 32X Core SIPAN 32, SIPAN 32X NTC NTC O2 sensor, Oxysens ® 7MA3100-8HG 1) BK BK RD WH GN WH RD Transp. YE/GN Screen 12 13 14 15 16 17 18 19 12 13 14 15 16 17 18 19 O2 sensor, Oxygold G ® 7MA3100-8HA Not used with PROFIBUS version Legend of colors OR VI orange violet GY gray WH white BN brown BU blue YE yellow GN green BK black SIPAN 32 or SIPAN 32X analyzer, electric connections HACH LANGE 4/13 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 32 and SIPAN 32X Communication between SIPAN 32 with HART modem and PC 4/14 HACH LANGE Analyzer for Dissolved Oxygen SIPAN 34 4/16 4/16 4/17 4/19 4/20 4/23 4/25 4/26 4/28 Overview Benefits Application Design Function Technical data Ordering data Dimensional drawings Schematics HACH LANGE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 Flüssigkeitsanalysengeräte ■ Overview ■ Benefits The SIPAN 34 measuring equipment is designed to determine the concentration of oxygen in aqueous solutions within wide concentration ranges. SIPAN 34 for the measurement of dissolved oxygen 4/16 HACH LANGE Benefits of SIPAN 34 • Four-wire technology • Sensor diagnosis • Automatic Hold function • Logbook to document all important events • Local operation following NAMUR • Three freely-programmable relays • Field housing IP65 • Panel housing IP54 • Second output for temperature (option) • Automatic atmospheric pressure correction during calibration. Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 ■ Application Very clean Utilization • Monitoring of very low oxygen concentrations in the steam circuit of steam generating plants to prevent corrosion • Checking of the oxygen content of foods, especially for monitoring storage life in the drinks industry • Oxygen concentration as a decisive parameter for the environmental analysis of rivers and lakes • Oxygen measurements in sewage treatment plants up to very high concentrations in the aeration tank • Monitoring of the O2 requirement of microorganisms in biotechnology. 1 µg/l Product characteristics • Almost independent of flow rate (minimum flow only 0.005 m/s), dependent on sensor • Extremely long service life • Automatic sensor monitoring and regeneration display • Fast replacement of membrane as result of robust special membrane, insensitive to contamination • Automatic correction of atmospheric pressure during calibration • O2 sensor for food applications can be sterilized and can be fitted in a bypass or inline using an attachment fitting or a replacement fitting • Single-point calibration of sensor using air (sensor is free of residual current) • No calibration liquid required. 1 mg/l 10 mg/l Ultra-pure water 60 mg/l Dirty 50 µg/l Waste water, fish farm 20 mg/l Sterilizable 1 µg/l Food 1 µg/l 10 µg/l 100 µg/l 1 mg/l 10 mg/l 100 mg/l Measuring equipment for dissolved oxygen, selection table according to fields of application Measurement of dissolved oxygen in water • The amount of dissolved oxygen in water may be important for various reasons • We use the polarographic measuring procedure for the three different fields of application for oxygen measurements which differentiate by three to four orders of magnitude. Measurement of dissolved oxygen in boiler feedwater (ultra
pure water) Measured medium with low concentrations of 1 µg/l to 10 mg/l dissolved oxygen It is important that there is as little oxygen as possible in the water of steam circuits of large power plants to prevent damage caused by corrosion. The dissolved oxygen should be monitored there with an order of magnitude µg O2/l water. In these water/steam circuits, water with an extremely low contamination is required to prevent deposits which could lead to a reduction in economy and to faults. Such ultra-pure water is aggressive. A layer of insoluble Fe3O4 is formed in the pipelines and therefore builds up a protective layer. However, if dissolved oxygen is present in a water/steam circuit, it is assumed that this protective layer is attacked at the high temperatures and pressures which exist, and that damage due to corrosion may result following further effects of the dissolved oxygen. HACH LANGE 4/17 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 Such trace measurements can only be carried out with great difficulty in a laboratory since sampling completely free of oxygen is difficult. Furthermore, the time intervals are usually too great if it is considered that even completely invisible leaks can already easily lead to a dangerous oxygen concentration of 100 µg O2/l which would probably be detected too late by occasional laboratory measurements. The main task of such monitoring is to guarantee biological equilibrium by using appropriate measures. This equilibrium is essential to preserve animal life and to prevent the contamination of surface water for drinking and service purposes. Therefore industrial measuring instruments are appropriate for such cases. Such instruments should require little maintenance to provide economic use and high operational reliability, and they must also be highly sensitive trace analyzers. In addition to mechanical cleaning, biological clarification is used in sewage treatment plants to break down organic compounds using bacteria. A dissolved oxygen concentration of approx. 1.5 to 2.5 mg O2/l must be present in the waste water to activate and sustain this treatment process. This oxygen is passed mechanically into the aeration tanks using air. The feedwater inlet upstream of the boiler is recommendable as the measuring location, although measurements are occasionally also made upstream of the feedwater pump because it is then unnecessary to have expansion equipment. A second measuring location is the outlet line from the condenser. The measurement is important here in order e.g. to rapidly detect leaks on the condenser and the machine. Similar or even higher water quality demands are placed during semiconductor (chip) manufacturing. Measurement of dissolved oxygen in rivers, lakes and waste water Measured medium with medium concentrations of 50 µg/l to 60 mg/l dissolved oxygen In this case, the dissolved oxygen in the water is essential to preserve life. Sufficient quantities of dissolved oxygen must be present in rivers or lakes to preserve animal life and the biological equilibrium. In sewage treatment plants, oxygen must even be introduced into the waste water to preserve and promote bacterial cultures for the biological decomposition of contaminants in the water. Economical operation is also an important factor here. In these cases, the oxygen concentration has an order of magnitude of several mg O2/l. The increasing contamination of rivers and lakes by toxic materials, organic and inorganic ballast, and by increased water temperatures resulting from the use of cooling plants means that water monitoring is becoming increasingly important. 4/18 HACH LANGE One of the most important measured variables is the dissolved oxygen, where concentrations of several mg O2/l must be measured. The energy required for input of air/oxygen is quite significant, and the amount of oxygen entered should therefore be carried out as economically as possible. Measurement of the dissolved oxygen in the waste water is therefore necessary. Measurement of dissolved oxygen in the food industry and in biotechnology process plants Measured medium with medium concentrations of 10 µg/l to 20 mg/l dissolved oxygen A long storage life for manufactured products is becoming increasingly important in the food industry for economy reasons. For this reason, the individual parameters must be strictly checked in the production plants. The amount of dissolved oxygen is of decisive importance for the storage life of a number of products. For example, a typical value for freshly filled beer is 20 µg/l, and a lower amount increases its life. This is particularly important if beer is brewed according to the German beer purity regulations which forbid the addition of conservation agents. It is important to exactly control the process sequence of biotechnology plants. An important variable is the amount of dissolved oxygen. Since food and biotechnology plants are sensitive to foreign germs, all used components must have a sterilizable design. Cleaning using steam sterilization is carried out regularly at defined intervals. It is therefore important to have a temperature-stable design of the wetted parts materials. Our stainless steel components have been proven as suitable for this technology. Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 ■ Design SIPAN 34 Not Ex zone Display Keyboard O2 0/4 ... 20 mA EPROM EEPROM D/A Temperature 0/4 ... 20 mA O2 Limit 1 Limit 2 Diagnosis: alarm A/D Warning Function check Temperature Range signaling D/D Range signaling Range signaling or Option Cleaning Mains Fitting Flushing D/D Range switching Basic version Option SIPAN 34 analyzer, mode of operation SIPAN 34 are analyzers of the four-wire generation with state-ofthe-art micro-power technology with microprocessor control and illuminated graphic display. The SIPAN 34 analyzers are optionally available with special features for process use. The SIPAN 34 analyzer is available in two designs: • in field housing and • in panel housing 96 x 96. They contain the analog and digital data processing functions for the signal delivered by the sensor. A SIPAN 34 analyzer can be parameterized for all measuring ranges. HACH LANGE 4/19 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 Measured
value processing ■ Function The signals delivered by the analog input amplifiers are processed into a temperature-compensated value by the digital data processing function. Oxygen Oxygen is reduced by the polarization voltage present between the working and reference electrodes according to the simplified equation: O2 + 2H2O + 4e- → 4OHThe electrons are supplied by the silver reference electrode, simplified according to: Water free of oxygen absorbs oxygen when in contact with atmospheric air depending on the atmospheric pressure and the temperature until a state of equilibrium has been reached, i.e. the partial pressure of oxygen in the water is equal to that of the surrounding air. The sensors which can be combined with the SIPAN 34 analyzers operate according to the polarographic principle. The so-called Clark sensors basically consist of a precious metal working electrode (cathode), a silver reference electrode (anode) and a membrane which is permeable to oxygen. 4Ag → 4Ag+ + 4e- A silver counterelectrode is also present in sensors with a threeelectrode system. Temperature compensation The analyzer delivers a constant polarization voltage at the cathode. The O2 molecules diffusing through the FEP or PTFE membrane are reduced at the gold cathode, and at the same time anode metal (silver) passes into solution in the electrolyte following oxidation. Oxygen: The input signal supplied by the sensor is converted into a standardized output signal by a range-dependent amplifier circuit. Temperature: The temperature of the measured medium is converted into a standardized output signal corresponding to a measuring range of the sensor. An NTC resistor is fitted in the sensor as the thermometer. Basic analyzer Thus the circuit between the anode and cathode is closed by the passage of ions via the electrolyte. The resulting current is proportional to the partial pressure of oxygen in the measured medium and is measured by the amplifier. The quantity of oxygen diffusing through the membrane per unit of time not only depends on the external partial pressure of oxygen but also on the temperature of the membrane. Options Inputs Dissolved oxygen Remote range switching for 4 parameter sets, thus access to 4 complete parameter sets for complete methods incl. measuring ranges, limits, Temperature temp. compensation, hysteresis Outputs To permit temperature compensation, a temperature sensor (NTC thermistor) is fitted in the oxygen sensor such that it is connected thermally to the measured medium and can therefore signal its temperature to the analyzer. SIPAN 34 analyzer Mains Analog output 2nd analog output for temperature 1 x failure 1 x limit 2 x NAMUR contacts Second limit U Output signal I Contacts 2 limits with control function 3 x cleaning or 3 x range signaling contacts Power supply Functions Measured medium Measured medium Silver reference electrode Gold working electrode (cathode) Silver counterelectrode Electrolyte Membrane O2 O2 O2 O2 Mode of operation of oxygen sensors with three-electrode system 4/20 HACH LANGE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 Calibration and regeneration of the oxygen sensors The sensor is calibrated using a single point (sensor is free of residual current), preferably using air. The sensor is adjusted for 100% saturation. The calibration cycle depends on the conditions of use and the required accuracy. The sensor must be regenerated, i.e. the electrolyte must be refilled and the membrane head replaced, if it can no longer be calibrated or if the membrane is damaged. The microprocessor analyzer operates with a non-linear temperature characteristic which is individually matched to the sensor to permit temperature compensation. Special characteristics • Four-wire analyzer with extremely easy operation • Universal power supply (24 V AC/DC, 115 V AC, 230 V AC) • Complete basic configuration • Self-explanatory menu operation in plain text in five languages (German, English, French, Spanish, Italian), without Instructions Manual, help function • Operation according to NAMUR, i.e. complete local operation with directly accessible keypad with 8 keys and large, illuminated, full-graphic display • Display of µg/l; mg/l; mbar; ppb; hPa; % saturation • Additional permanent bargraph of measuring range • Graphic trend display of measured value • Additional permanent temperature display in °C • Output signal 0/4 to 20 mA, floating • Freely-programmable, permanent measuring-point designation (saves tag labels) • Logbook with entry of faults or calibration procedures with date and time • Fault and limit contacts • Maintenance switch with automatic HOLD function • Comprehensive fault diagnosis and preventive maintenance system in plain text • 3 operating levels with coded protection for monitoring, routine and specialists • Selectable tests for: keys, RAM, EPROM, EEPROM, display • Output of freely-defined current values for test purposes • Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection • Panel housing made completely of metal, CE safety for every control cabinet installation engineer • Robust field housing (IP65) with seven cable screwed glands for easy connection • No special or expensive mounting set required for wall or panel mounting. Optional characteristics • Second current output for measured value or temperature with additional limit • Four parameter sets with remote selection for complete methods, not only for measuring ranges, e.g. also limits, physical dimensions, hysteresis • Individual calibration of each parameter set possible • Automatic cleaning function (3 relays) for cleaning, flushing, fitting control with cyclic time input, maintenance and holding functions • Two-point controller for pulse length (dosing valves) or pulse frequency (diaphragm pumps) • Additional switching contacts for maintenance (function check) and pre-alarm (warning). An NTC thermistor is mounted in the sensor as thermometer. Parameter sets (option) The analyzer has four complete parameter sets for four methods that can be set independently from each other. This allows an optimal adaptation in a process when different media have to be measured one after another with one line. Switchover to the correspondent parameter set can be controlled externally. Method number 1 2 3 4 Medium Biofermenter Water Biofermenter Water Range 20 ... 30 30 ... 400 0.001 ... 1 0.001 ... 1 Dimension µg/l mg/l µg/l mg/l Limit 30 max. 0.5 max. 300 min. 0.8 min. Method switchover HACH LANGE 4/21 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 SIPAN 34 analyzer, display and control panel 4/22 HACH LANGE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 ■ Technical data Influencing effects on mea
sured value According to DIN IEC 746, Part 1 Display graphic • Repeatability <0.2% of full-scale value • Measured value Four 15-mm digits or trend display 5 bars, 3 mm high • Linearity <0.3% of full-scale value • Ambient temperature <0.2%/10 K • Temperature, alarms, measuringpoint identification 3-mm digits current output as bargraph 3 mm high • Power supply <0.2% of full-scale value • Load <0.1%/100 Ω • Test voltage 500 V AC, 50 Hz, 1 min • Operator input 8 lines of text 1 heading (inverted display) and 6 text lines, type size 4 mm • Zero error • Illumination LED Languages 5: German, English, French, Italian, Spanish; selectable <0.2% of measured value ± 1 µg/l (7MA3100-8CC, -8CE, -8CD) ± 5 µg/l (other sensors), dependent on sensor type Coding 3 coding levels for operations (display level, user level, specialist level) • Salinity correction Possible Output signal 4 to 20 mA, floating, linear to measured value or bilinear to measured value (2 linear partial ranges with a knee at 12 mA), see figure Dimension µg/l, mg/l, mbar, ppb, hPa, % saturation Measuring span O2 (expansion) Any, but at least 10% of smallest measuring range Max. permissible load in Ω 750 Current limiting Output range Optionally selectable between 0 and maximum full-scale value 0 or 21 mA (0 to 20 mA) 3.6 mA or 21 mA (4 to 20 mA) Limit Temperature compensation Dependent on sensor type 1 NO or NC contact selectable, adjustable hysteresis and response time Measuring range for temperature Input: NTC: -10 to +140 °C, dependent on sensor type Alarm contact 1 alarm (failure) Any, but at least 10% of measuring range Diagnostic contacts Two, pre-alarm and maintenance Relay contacts Rating 24 V DC, 1 A Compensation of atmospheric pressure Automatic, by barometric pressure correction or manual Logbook Sensor calibration Manual using air Electrical isolation Input and output are electrically isolated Automatic recording of warning and failure messages with date and time, 20 entries with overflow, non-erasable Data storage >10 years (EEPROM) Device self-test Testing of RAM, EPROM, EEPROM, display, keyboard, data can be called on display Measuring span for temperature Error limits • Temperature (at rated conditions) <0.3 K Clock Software clock Protection According to IEC 79-15; conformity certificate Identification CE marking HACH LANGE 4/23 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 Temperature and mechanical stress Options • Operation DIN EN (IEC) 60721-3-3 Second output signal 0/4 ... 20 mA, linear to temperature -20 °C ... +60 °C corresponds to 3K6 but lowest temperature –20 °C without condensation -5 °C ... +70 °C corresponds to 3K3 but highest temperature +70 °C for panel mounting Additional limit 1 x NO or NC contact selectable, any assignment to measured value or temperature Parameter sets 4 Range signalling Signalling of current measuring range (3 contacts) Cleaning contacts with timer 3, fitting control, cleaning and flushing Range switchover 4, parameterizable as desired using range selection; external control possible Controller 2 floating contacts (instead of limits) as PI controller - Temperature - Mechanical stress • Storage 3M2 DIN EN (IEC) 60721-3-1 - Temperature - Mechanical stress • Transport -25 °C ... +70 °C corresponds to 1K4 but highest temperature +70 °C 1M2 DIN EN (IEC) 60721-3-2 - Temperature -25 °C ... +70 °C corresponds to 2K3 - Mechanical stress 2M2 Water protection DIN EN (IEC) 60529 IP65 for field devices IP54 for panel mounting EMC DIN EN (IEC) 61326 and NAMUR NE 21 Electrical safety DIN EN (IEC) 61010-1 Quality assurance system DIN ISO 9001/EN 29000 Material of field housing Macrolon (polycarbonate + 20% glass fiber) Panel mounting housing Aluminium Permissible relative humidity 10 ... 95%, no condensation Power supply 120 V AC (94 V ... 132 V), 48 ... 63 Hz, 10 VA 230 V AC (187 V ... 264 V), 48 ... 63 Hz, 10 VA 24 V AC (20 V ... 26 V), 48 ... 63 Hz, 10 VA 24 V DC (20 V ... 30 V), 8 VA, protection class II (field housing) Weight 4/24 2.5 kg field housing 2.0 kg panel mounting housing HACH LANGE mA 20 10/12 0/4 KA KK KA Start-of-scale value KK Knee KE Full-scale value Linear and bent characteristic KE Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 Ordering data Order No. SIPAN 34 analyzer four
wire system, for the measurement of dissolved oxygen microprocessor-based with illuminated graphic display, membrane keyboard, menu-based operation (5 languages), trend display, concentration display, logbook, temperature compensation, barometric pressure compensation, 1 parameter set, 1 signal output 0/4 to 20 mA, 1 alarm contact, 1 limit contact, 2 diagnostic contacts 7MA 3 0 3 4
Power supply • 24 V DC/24 V AC, 48 ... 63 Hz • 120 V AC, 48 ... 63 Hz • 230 V AC, 48 ... 63 Hz ■■■■ 0
0 ■■ 0 A • Waste water B • Ultra-pure water C 0 With second signal output 0/4 ... 20 mA, and second limit 1 With four selectable parameter sets and three range signalling contacts 2 With second signal output 0/4 ... 20 mA and with four selectable parameter sets and three range signalling contacts 3 Automatic cleaning/flushing (3 contacts + timer for fitting, cleaning, flushing) • Without • With For mounting the analyzer or the isolating block on a pipeline Protective hood (SS, type No. 1.4571) with base plate C79451
A3177
D12 Pipe clamp (SS, type No. 1.4571) 7MA8500
8DG Base plate (SS, type No. 1.4571) C79451
A3177
D11 A B Without additional option Limits with controller function • Without • With Order No. 0 1 2 Measuring procedure • Food Instrument design • Field housing • Panel housing 96 x 96 Accessories/mounting mate
rial A B A B Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on request. Please order together with the analyzer in cleartype. HACH LANGE 4/25 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 ■ Dimensional drawings 10 172 D-D 20.5 D Æ 13 Æ 6.5 5 S I P A N 269 286±0.2 1) 306 94 105.5 D 0 R1 ca 30 16.5 94 152±0.2 1) A PG 13.5 SW 24 SIPAN 34 analyzer as field housing, dimensions in mm 4/26 HACH LANGE PG 11 SW 22 1.7 19.5 26.5 80 17 View A 1) 3 fixing bores (M6) Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 16 1 30 90 15 96 15 100 90 1 90 9 11 15 96 0 ... 6 18 8 67 282 SIPAN 34 analyzer as panel mounting instrument, dimensions in mm HACH LANGE 4/27 Liquid Analysis Analyzer for Dissolved Oxygen SIPAN 34 ■ Schematics SIPAN 34 13 14 15 16 17 ö ý ø Selection Range 2 Signaling Range 3 Selection Range 3 ö ý ø ö ý ø ö ý ø Limit 2 Functional check Signaling Range 4 Selection Range 4 Temperature Option SIPAN 34 15 26 GY 27 28 29 30 ö ý ø BN VI ö ý ø 25 NTC O2 measurement ö ý ø Flushing 24 BU ö ý ø 23 Fitting ö ý ø 12 13 14 YE ö ý ø 24 V AC 110 V AC 230 V AC Pre-alarm warning ö ý ø N ö ý ø L Dissolved O2 ö ý ø ö ý ø Signaling Range 2 ö ý ø ö ý ø Alarm Failure ö ý ø ö ý ø Limit 1 21 22 ö ý ø ö ý ø 24 V DC 20 18 19 WH 12 GN 10 11 20 mA 9 20 mA 8 0/4 7 0/4 6 +24 V 5 +24 V 2 + +24 V 1 - Cleaning O2 sensor 7MA3100-8CC, 7MA3100-8CD, 7MA3100-8CE, 7MA3100-8CF NTC O2 measurement O2 sensor, Oxysens ® 7MA3100-8HG O2 sensor, Oxyferm VP ® 7MA3100-8HD Legend of colors RD red VI violet GY gray WH white SIPAN 34 analyzer, electric connections 4/28 HACH LANGE BN brown BU blue YE yellow GN green BK black 30 23 24 NTC 25 26 27 RD 28 29 WH 27 ö ý ø O2 measurement 26 Screen 25 ö ý ø YE 24 BK 23 ö ý ø 30 Screen 28 29 SIPAN 34 ö ý Core ø BN 27 YE/GN ö ý ø NTC 26 BU 25 ö ýTransp. ø RD 24 GN WH 23 SIPAN 34 BK SIPAN 34 O2 measurement O2 sensor 7MA3100-8CA 28 29 30 Welcome to HACH LANGE! Now you have the new SIPAN catalog. Liquid analyzers of the SIPAN series for continuous measurement of pH value/redox potential, conductivity and dissolved oxygen supply important data to process control systems or process control devices. HACH LANGE is the market leader for Liquid Analytics in the Water/Waste water sector. With product characteristics such as explosion protection, etc. SIPAN products will ideally complement the existing HACH LANGE product lines to an even more extensive product range. Whether field or laboratory analysis, samplers or process measurement technology, HACH LANGE stands for the total spectrum of water analysis - from visual methods to comprehensive systems of reagents, measurement technology and accessories. Solutions from HACH LANGE are tailor-made for every application in wastewater, drinking water or process water - for reliable control of operational processes and monitoring of legally prescribed limit values. HACH LANGE stands for water analysis from a single source. For you, this means more products and applications, more experience and on-site support than ever before Your water-analysis team at CATALOG PROCESS MEASUREMENT TECHNOLOGY SIPAN LIQUID ANALYSIS DW PW HACH LANGE services. Wastewater. Made-to-measure solutions for wastewater analysis in the municipal and industrial sectors. Ordering, information and advice: [email protected] Drinking water. Assured safety — analysis for suppliers and consumers. Process water. Process and laboratory analysis for special analytical problems and production conditions. Seminars and workshops: further training and exchange of experience for analysis in practice. On-site support by our technical field staff. Quality assurance, complete with standard solutions, instrument checks and test solutions. www.hach-lange.com up to date and secure, with downloads, information and shop. Assurance of legal compliance, together with environmental protection through collection of used reagents. Reliable operation of all instruments thanks to flexible service and maintenance contracts. Regular customer information by post and email. SIPAN 32 and 34 Controllers and Sensors for pH, Conductivity and O2 HACH LANGE GMBH Willstätterstraße 11 D-40549 Düsseldorf Tel. + 49 (0) 2 11 52 88-0 Fax + 49 (0) 2 11 52 88-143 [email protected] www.hach-lange.com DOC033.52.00421.Jan05 WW Core capabilities.