Hauser Endress

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Technical Information TI 193C/07/en No. 51500279 Conductivity Measurement liquisys S CLM 223 / 253 Conductivity and Resistance Transmitter Liquisys S CLM 253 Benefits at a glance • Measuring transmitter in field or panel-mounted housing • Universal application – Conductivity and specific resistance via software switching – Transmitters for conductive or inductive measurement – Ultrapure water compensation acc. to IEC 746 (conductive only) • Simple handling – Logically arranged menu structure with plain text in 6 languages facilitates instrument configuration – Large, two-line display indicates measured value and temperature at the same time – Calibration via CAL key • Safe operation – Overvoltage (lightning) protection according to EN 61000-4-5 – Direct access for manual contact control – User-defined alarm configuration for alarm contact and error current The basic unit can be extended with: Liquisys S CLM 223 Due to the modularity of its design, the Liquisys S CLM 223 / 253 transmitter can be adapted to a wide range of customer needs. The basic version, which provides simple measuring and alarm signalling functions, can be equipped with additional software and hardware modules to match specific applications. Retrofitting of expansion modules is also possible. Areas of application • Ultrapure water • Water treatment • Ion exchangers • Reverse osmosis • Cooling water desalinisation • Sewage • 2 or 4 contacts for use as: – Limit contacts (also for temperature) – P(ID) controller – Timer for simple rinse processes – Complete cleaning with Chemoclean • Plus package: – Any current output configuration via table – Automatic initiation of cleaning in case of alarm or limit violation – Ultrapure water monitoring with pre-alarm acc. to USP 23 (conductive only) – Polarisation detection (conductive only) – Concentration measurement (% / TDS) – Temperature compensation via table – Live check of measuring cell • HART® or Profibus PA • 2nd current output for temperature Quality made by Endress+Hauser Endress + Hauser Nothing beats know-how ISO 9001 Liquisys S CLM 223 / 253 provides a solution for all drinking water processing, process water and sewage treatment applications. The CS / IS version provides additional functions: Features of the basic version (CD / ID): Measurement of conductivity or specific resistance This is selected via the menu. During measurement, the value measured can be displayed in the other measuring mode. The temperature is displayed at the same time if desired. 2.4 / 22 mA on off on off on off Different alarms are required depending on application and operator. Therefore the Liquisys S CLM 223 / 253 permits independent configuration of the alarm contact and error current for each individual error. Unnecessary or undesirable alarms can be suppressed in this manner. Timer Chemoclean on off on off on off t t Up to four contacts can be used as limit contacts (also for temperature), to implement a P(ID) controller or for cleaning functions. Direct manual operation of the contacts (bypassing the menu) provides quick access to limit, control or cleaning contacts, permitting speedy correction of deviations. Instrument DATA S erNr I1 1 3 56348 The serial numbers of the instrument and modules and the order code can be called up on the display. The cell constant can be edited and even calibrated for demanding special applications. 2 0 In order to display wide measuring ranges while still achieving a high resolution in certain ranges, the current output can be configured as required via a table. This permits bilinear or quasi-logarithmic curves, etc. Temperature compensation selections available are linear (α = 0 means no temperature compensation) or special ultrapure water compensation (NaCl curve) according to IEC 746. The reference temperature is 25 °C. E 017 E 123 ---- 20 mA Conductive or inductive Two instrument versions for measurement with conductive (two-electrode) measuring cells or inductive measuring cells are available. The use of inductive measuring cells that are less sensitive to soiling than conductive measuring cells is recommended for concentration measurement or adhering media. Inductive measuring cells must normally be installed in pipes at a required minimum distance from the pipe wall. If this minimum distance is not observed, the measured value changes. The builtin adaptive calibration feature can be used to compensate for this once the cell is installed. The sensor and process check system also indicates any polarisation of the conductive measuring cell. Since there is no subdivision into several measuring ranges (the full range from 0 ... 2000 mS/cm is available at all times), the measuring range is limited by the cell constant only. Polarisation detection then determines whether or not the working range determined by the measuring cell is exceeded. 20 mA Details 0 t The live check issues an alarm when the measuring cell signal does not change over a defined period of time. This may be caused by blocking, passivation, separation from the process, etc. USP 23 T µS/cm T µS/cm T 10 0.9 45 1.8 75 15 1.0 50 1.9 80 20 1.1 55 2.1 85 Ultrapure water monitoring according to USP 23 means that the uncompensated conductivity and the temperature are measured and compared to a table. The Liquisys S CLM 223 / 253 (conductive) comes with this function, and the user-adjustable pre-alarm indicates undesirable operating values in due time. Full compliance with USP 23 requires the use of a precisely calibrated measuring cell, for example, the CLS 15. The conversion from conductivity to concentration is effected using four user-definable concentration curves. This permits concentrations to be displayed directly in % or ppm, i.e. as TDS (total dissolved salts solids). Basic version and plus package Basic version With plus package (CS / IS version) Alarm signalling MEASUREMENT Adaptive CALIBRATION (inductive cells) CALIBRATION of cell constant CALIBRATION of residual coupling (ind. cells) POLARISATION detection (two-electrode cells) LIVE CHECK of sensor Read instrument DATA Linear CURRENT OUTPUT CURRENT OUTPUT simulation CURRENT OUTPUT programmable (table) 1 programmable ALARM CONTACT (contact and error current) Controlling Additional features Additional features 2 CHANGEOVER CONTACTS for – Measuring parameter limit – Temperature limit – P(ID) controller – Timer for cleaning Measurement according to USP 23 with pre-alarm (two-electrode cells) Automatic cleaning triggered by alarm or limit violation Cleaning Additional features Measuring and control system Complete measuring systems with Liquisys S CLM 223 / 253 Additional features 2 more CHANGEOVER CONTACTS (total of 4) for – Measuring parameter limit – Temperature limit – P(ID) controller – Chemoclean cleaning (water and cleaning agent) Cleaning triggered externally or automatically by alarm or limit violation • a CYK 71 or CLK 5 cable permanently attached to the sensor Options: • an extension cable CYK 71 (conductive) or CLK 5 (inductive) and • junction box VBM A complete measuring system comprises: • the conductivity transmitter Liquisys S CLM 223 or CLM 253 • a conductivity measuring cell with or without integrated temperature sensor Liquisys S CLM 253 Up to 4 relays ENDRESS+HAUSER LIQUISYS CLS 15 Alarm contact REL1 ALARM CAL REL REL2 Signal output 1: conductivity REL1 E REL2 Signal output 2: temperature (optional) Aux. 15 V supply voltage Immersion assembly CLA 111 2 digital inputs Power supply (mains) Measuring cable CLS 21 with integrated Pt 100 Liquisys S CLM 223 CLS 50 ENDRESS+HAUSER LIQUISYS REL1 ALARM CAL REL REL2 REL1 E REL2 LM2X3SYS.CDR Measuring ranges of conductivity measuring cells CD-CELL.CDR CLS 50 k = 10 (CLS 30) k = 1 (CLS 21) k = 0.1 (CLS 12 / 13 / 15 / 19) k = 0.01 (CLS 12 / 13 / 15 / 19) Measuring ranges of conductive and inductive conductivity measuring cells 0.01 0.1 1 10 µS/cm 3 100 1 10 mS/cm 100 1000 LCD-LF-E.CDR Operation ENDRESS+HAUSER LIQUISYS 1734 Field for user labelling mS/cm R362 Setpoint Liquid crystal display for display of measured values, configuration data and current menu field Key for manual relay switching REL1 ALARM CAL REL REL2 LED indicator for alarm function REL1 E 4 main control keys for calibration and instrument configuration User interface: Display and keys REL2 Key for switching between automatic and manual relay operation Everything at a glance The display simultaneously shows the current measured value and the temperature – the essential process data. Brief informational texts in the configuration menu provide assistance with parameter configuration. LED indicators for switched limit outputs Intelligent and simple All instrument control functions are arranged in a logical menu structure. Following access code entry, the individual parameters can be easily selected and modified as needed. Calibration of cell constant; calibration of residual coupling (inductive cells); for IS version also adaptive calibration CALIBRATION Display Current temperature display can be suppressed by pressing the plus key MEAS. VALUE TEMPERATURE Display of active errors (sequence according to priority) SETUP 1 Selection of measurement type and unit, adjustment of measured value filter SETUP 2 Temperature measurement and temperature compensation Adjustment of current output assignment, curve and simulation for verification CURRENT OUTPUT ALARM User adjustment of errors to switch relay or generate error current (S version: automatic cleaning trigger in the event of an alarm) CHECK Adjustment of polarisation detection (conductive) and live check alarm RELAYS Up to 4 relays may be configured as limit contacts, P(ID) controller, timer or for chemical cleaning (S version: automatic cleaning trigger in case of limit violation / CS version: USP 23) α TABLE Definition of α table for temperature compensation (up to 10 value pairs) In addition to conductivity measurement, the concentration of a substance can be displayed in different units with user-defined assignments to these base units (e.g. % / ppm TDS) CONCENTRATION Overview of Liquisys S CLM 223 / 253 menu. This overview covers all the options that can be installed (see page 2 Details). Selection of language version, display of software or hardware serial numbers, entry of access codes SERVICE LM2X3OP.CDR 4 Electrical connection All connections to the panel-mounted instrument CLM 223 are established via the terminal strips on the rear. In the case of the field instrument CLM 253, all wires (including the measuring cell cable) are connected to terminals in a separate wiring compartment. All the wiring can remain in place if the instrument needs repair because all possible repairs are limited to assembly replacement. So, dismantling the instrument and rewiring are no longer necessary. E Left: Liquisys S CLM 223, connections on the rear of the instrument Right: Liquisys S CLM 253, rear of instrument with replaceable electronics box (E) REAR223.TIF FELD2.CDR 84 Conductive measuring cell 83 (alternative) wt Inductive measuring cell bl rd rd bl 84 41 15 16 42 83 43 Alarm* rd 47 S 48 Relay 1* 49 Temperature sensor Pt 100 ϑ gn 11 wt 12 ye 13 31 Signal output 1: conductivity 33 58 51 mA 52 κ 54 mA 34 55 ϑ Relay 4* 56 *Contact status shown: no current or fault present optional 10 ... 50 V 82 ∼ = L L+ 93 Digital input 2 Relay 3* 53 81 Digital input 1 Relay 2* 59 32 Signal output 2: temperature (optional) 57 ϑ N L– 10 ... 50 V Power supply 94 85 Aux. voltage output 86 Electrical connection of Liquisys S CLM 223 / 253 15 V ANLF.CDR 5 Dimensions 96 ENDRESS+HAUSER LIQUISYS REL 1 ALARM CAL REL 2 REL REL 1 E REL 2 6 139 90 Dimensions of Liquisys S CLM 223 XM223-2D.CDR 11 157 ENDRESS+HAUSER LIQUISYS REL1 ALARM CAL REL REL2 REL1 70 115 247 REL2 ∅6 E 70 154 170 Dimensions of Liquisys S CLM 253 XM253-2D.CDR 6 Mounting of Liquisys S CLM 223 The panel-mounted version is mounted using the supplied tensioning screws. The required overall mounting depth is approx. 175 mm. Flat gasket (included in delivery) Mounting cutout according to DIN 43700 92+0.5 33 57 90 96 92+0.5 max. 45 ca. 25 139 Installation of panelmounted housing XM223MON.CDR Mounting of Liquisys S CLM 253 320 270 There are several mounting options for the field instrument: • Mounting on a square-tube mounting post • Mounting on cylindrical pipes • Wall mounting with fastening screws Weather protection cover CYY 101 is required for outdoor installation. This cover is compatible with all field instrument mounting options. 300 Weather protection cover CYY 101 (see Accessories) CYY101.CDR ➁ 1495 ➀ 60 × 60 150 Universal upright post CYY 102 or identical upright post of suspension assembly holder CYH 101 (square tube, see Accessories); mounting of weather protection cover and field instrument 6 120 YY101102.CDR 7 Proceed as follows to install the instrument on a square-tube mounting post (universal upright post CYY 102 or upright post of suspension assembly holder CYH 101): ➀ Install the weather protection cover on the upright post first. ➁ Attach the field instrument to the weather protection cover from the rear. Mounting of Liquisys S CLM 253 (continued) 90 ∅8 30 70 Post mounting kit for installation of field housing on cylindrical pipes (horizontal or vertical, max. ∅ 60 mm; see Accessories) 60 90 ∅8 70 M6 ∅6 70 90 MASTSATZ.CDR Mounting on cylindrical pipes (shown with weather protection cover installed on right) ∅8 157 XM253MAS.CDR 16 115 Wall mounting; Screws: ∅ 6 mm Anchors: ∅ 8 mm XM253WAN.CDR 8 Technical data General specifications Input Manufacturer Endress+Hauser Product designation Liquisys S CLM 223 Liquisys S CLM 253 Measured quantities conductivity, resistance, temperature Conductive conductivity/resistance measurement Measuring range conductivity: 0 ... 2000 mS/cm (uncompensated) resistance: 0 ... 86 MΩ · cm Usable cell constant k = 0.0025 ... 99.99 cm–1 Maximum length of cable to measuring cell conductivity: 100 m resistance: 15 m Measuring frequency conductivity: 299.75 ... 1077.6 Hz resistance: 32.5 ... 425 Hz Inductive conductivity measurement Measuring range 0 ... 2000 mS/cm (uncompensated) Usable cell constant k = 0.0025 ... 99.99 cm–1 Maximum length of cable to measuring cell 60 m (CLK 5) Measuring frequency 2 kHz Minimum distance for 0 / 4 ... 20 mA signal meas. value betw. 0 and 199.9 µS/cm: meas. value betw. 200 and 1999 µS/cm: meas. value betw. 2 and 19.99 mS/cm: meas. value betw. 20 and 2000 mS/cm: 20 µS/cm 200 µS/cm 2 mS/cm 200 mS/cm Temperature measurement Temperature sensor Pt 100 Measuring range –35 ... +250 °C Temperature offset range ±20 °C Temperature compensation Compensation types linear, NaCl, table, (conductive only:) ultrapure water Range –35 ... +250 °C Reference temperature 25 °C Digital inputs 1 and 2 Output Voltage 10 ... 50 V Current consumption max. 10 mA Conductivity/resistance signal output Current range 0 / 4 ... 20 mA, galvanically separated; error current 2.4 / 22 mA Load max. 500 Ω Output range adjustable Isolation voltage max. 350 Vrms / 500 V DC Overvoltage (lightning) protection according to EN 61000-4-5:1995 Temperature signal output (optional) Current range 0 / 4 ... 20 mA, galvanically separated Load max. 500 Ω Output range adjustable, ∆ 10 ... ∆ 100% of upper range value Isolation voltage max. 350 Vrms / 500 V DC Overvoltage (lightning) protection according to EN 61000-4-5:1995 Auxiliary voltage output Output voltage 15 V ± 0.6 V Output current max. 30 mA Contact outputs (floating changeover contacts) Switching current with ohmic load (cos ϕ = 1) max. 2 A Switching current with inductive load (cos ϕ = 0.4) max. 2 A Switching voltage max. 250 V AC, 30 V DC Switching power with ohmic load (cos ϕ = 1) max. 1250 VA AC, 150 W DC Switching power with inductive load (cos ϕ = 0.4) max. 500 VA AC, 90 W DC 9 Technical data (continued) Output (continued) Limit contactor Pickup / droput delay 0 ... 2000 s Controller Function (adjustable) pulse length / pulse frequency controller Controller response PID Proportional band Kp: 0.10 ... 10.00 Period for pulse length controller 0.5 ... 999.9 s Frequency for pulse frequency controller 60 ... 180 min–1 Alarm Accuracy Function (switchable) steady / fleeting contact; normally closed / open Alarm threshold adjustment range conductivity / resistance / temperature: complete measuring range Alarm delay 0 ... 2000 s Conductivity measurement Deviation of indication1 max. 0.5% of measured value ± 4 digits Reproducibility max. 0.2% of measured value ± 2 digits Measurement deviation1, conductivity signal output 0.75% of current output range Resistance measurement Deviation of indication1 max. 0.5% of measured value ± 4 digits Reproducibility max. 0.2% of measured value ± 2 digits Measurement deviation1, resistance signal output 0.75% of current output range Temperature measurement Resolution Ambient conditions Physical data / design 0.1 °C Deviation of indication1 max. 1.0% of measuring range Measurement deviation1, temperature signal output max. 1.25% of current output range Ambient temperature (nominal operating conditions) –10 ... +55 °C Ambient temperature (limit operating conditions) –20 ... +60 °C Storage and transport temperature –25 ... +65 °C Relative humidity (nominal operating conditions) 10 ... 95%, non-condensing Protection class of panel-mounted unit IP 54 (front), IP 30 (housing) Protection class of field housing IP 65 Electromagnetic compatibility interference emission acc. to EN 50081-1:1992 interference immunity acc. to EN 50082-2:1995 Dimensions of panel-mounted unit (H × W × D) 96 × 96 × 145 mm Installation depth approx. 175 mm Dimensions of field housing (H × W × D) 247 × 170 × 115 mm Weight of panel-mounted unit max. 0.7 kg Weight with field housing max. 2.3 kg Display LC display, two lines, five and nine digits, with status indicators Materials Housing of panel-mounted unit Power requirements polycarbonate Front membrane polyester, UV-resistant Field housing ABS PC Fr Supply voltage 100 / 115 / 230 V AC +10 / –15%, 48 ... 62 Hz 24 V AC/DC +20 / –15% Power consumption max. 7.5 VA Fuse protection fine-wire fuse, medium time-lag, 250 V / 1 A 1 acc. to IEC 746-1, for nominal operating conditions Subject to modifications. 10 Accessories Mounting accessories Type Features Order number Weather prot. cover CYY 101 For mounting on field housing, for outdoor use CYY 101-A Dimensions (H × W × D): 320 × 300 × 270 mm Material: stainless steel 1.4301 Universal upright post CYY 102 Square tube for mounting of field housing Dimensions (H × W × D): 1495 × 60 × 60 mm Material: stainless steel 1.4301 CYY 102-A Suspension assembly holder CYH 101 For immersion assemblies with suspension bracket, e.g. CYA 611; for installation on basin or channel rim Materials: stainless steel 1.4301 / PE / PP / PA CYH 101-A Pendulum frame For pendulum suspension of assemblies, e.g. CYA 611 Material: stainless steel 1.4301 50080196 Post mounting kit Kit for mounting of field housing on horizontal or vertical pipes (∅ max. 60 mm) Material: stainless steel 1.4301 50086842 Type Features Applications CYA 611 Immersion assembly with G 1, G ¾ or NPT ¾" thread Sewage, water Dipsys CLA 140 Immersion assembly with flange DN 80 PN 16, ANSI 3" 150 lbs or JIS 10K 80A; measuring cell holder with bayonet lock Sewage, paper industry Assemblies Two-electrode conductivity measuring cells (selection) Type Features Applications CLS 15 Cell constant: k = 0.1 cm–1 or 0.01 cm–1 Process connections: NPT ½", 1½" clamp Condensate, ion exchangers CLS 21 Cell constant: k = 1 cm–1 Process connections: G 1, DN 25 and DN 40 dairy pipe fitting, 2" clamp Service water, boiler feed water CLS 30 Cell constant: k = 10 cm–1 Process connections: G 1, DN 25 and DN 40 dairy pipe fitting Service water, concentration monitoring Inductive conductivity measuring cell Type Features Applications CLS 50 Cell constant: k ≈ 2 cm–1 Process connections: G ¾, NPT 1", DN 50 flange (incl. 5 m attached cable) Concentration measurement, product monitoring Type Features Order number CYK 71 Standard measuring cable for connection of two-electrode-measuring cells with and without Pt 100 (also usable for extension) 50085333 CLK 5 Extension cable for inductive measuring cells 50085473 VBM Junction box 50003987 Cables 11 Product structure Conductivity and resistance transmitter Liquisys S CLM 223 / CLM 253 Version CD Conductivity/resistance measurement (two-electrode cell) CS Conductivity/resistance measurement (two-electrode cell) with additional functions ID Conductivity measurement (inductive cell) IS Conductivity measurement (inductive cell) with additional functions Power supply 0 1 5 8 230 V AC 115 V AC 100 V AC 24 V AC/DC Measurement output 0 1 3 5 6 Conductivity/resistance Conductivity/resistance and temperature Profibus PA Conductivity/resistance with HART Conductivity/resistance with HART and temperature Contacts 05 10 15 No additional contacts 2 contacts (limit / P(ID) / timer) 4 contacts (limit / P(ID) / Chemoclean) CLM 223- complete order code for CLM 223 CLM 253- complete order code for CLM 253 Endress+Hauser GmbH+Co. - Instruments International P.O. Box 22 22 D-79574 Weil am Rhein Tel. (0 76 21) 9 75 - 02 Fax (0 76 21) 97 53 45 Endress + Hauser Nothing beats know-how TI 193C/07/en/01.99 Printed in Germany / DT / CV5 (51500279)