Transcript
Instruction Manual
ABSORPTOMETER "C" DATA ACQUISITION SYSTEM IDENT NO. 8 160 02
Brabender® GmbH & Co. KG • Kulturstr. 51-55 • 47055 Duisburg • Germany Phone - 49 - 203 - 7788 - 0 • Fax - 49 - 203 - 7788 - 101 E-mail:
[email protected] Agencies all over the world
Brabender GmbH & Co. KG 2006
0706
Copyright protection DIN 34
No. 27333.2 E
REGISTRATION CARD
Brabender® GmbH & Co. KG
Important! Please complete and return to: Important! Veuillez compléter et retourner à: / Wichtig! Bitte ausfüllen und zurücksenden an: / Importante: Voglia completare e rispedire a: / Importante: Haga el favor de completar y devolver a:
Brabender GmbH & Co. KG, Kulturstr. 51-55, 47055 Duisburg, Germany Tel. No: ++ 49 - 203 - 7788 - 0 Fax. No.: ++ 49 - 203 - 7788 - 100 E-mail:
[email protected]
Please state the Brabender order no. of your equipment: Inscrire ici le numéro de commande Brabender de votre appareil / Bitte hier die Brabender Order-Nr. Ihres Geräts eintragen / Iscrivere qui il numero d'ordine Brabender dell'apparecchio / Inscribir aquí el número de pedido Brabender del aparato
USER OF EQUIPMENT Utilisateur / Benutzer / Utente / Utilizador
Title __________________________________ Titre / Titel / Titolo / Titulo
Company __________________________________ Société / Firma / Ragione Sociale / Nombre de la Compañía
Surname __________________________________ Nom / Name / Cognome / Appelido
Address __________________________________ Adresse / Adresse / Indirizzo / Dirección
First Name __________________________________ Prénom / Vorname / Nome / Nombre
__________________________________
Tel. No.
__________________________________ Téléphone / Telefon / Numero di telefono / Número de teléfono
Country __________________________________ Pays / Land / Nazione / País
Fax No.
E-mail
__________________________________ Télécopieur / Fax / Numero di fax / Número de fax
__________________________________
EQUIPMENT Appareil / Gerät / Apparecchio / Aparato
Instrument / Software
__________________________________________________________________
Instrument / Logiciel Apparecchio / Software Aparato / Software
__________________________________________________________________
Ident No.
__________________________________
Version No.
__________________________________ (only in case of software / seulement pour logiciel / nur für Software / solamente per il software / solamente para el software)
❒
If you do not wish your name to be used for marketing purposes, tick this box. Si vous ne souhaitez pas que votre nom soit utilisé a des fins commerciales, cochez cette case. / Wenn Sie nicht wünschen, dass Ihr Name für Marketingzwecke verwendet wird, kreuzen Sie dieses Feld an. / Spunti questa casella se non desidera che il Suo nome venga utilizzato a scopi di marketing. / Marque el recuadro si no desea que su nombre sea usado para razones comerciales.
Contents 1
2
3
4
5
GENERAL INFORMATION.....................................................................5 1.1
Symbols and abbreviations ............................................................................................................5
1.2
Application......................................................................................................................................6 1.2.1 Measuring principle.............................................................................................................6
1.3
Legal basis .....................................................................................................................................6
1.4
Noise measurement .......................................................................................................................6
SAFETY ..................................................................................................7 2.1
Due application ..............................................................................................................................7
2.2
Safety instructions for the user.......................................................................................................7
2.3
Safety precautions .........................................................................................................................8 2.3.1 Safety provisions at the Absorptometer..............................................................................8 2.3.1.1 Emergency shut-off button ...................................................................................8 2.3.1.2 Two-hand control device ......................................................................................8 2.3.2 Safety provisions at the mixer.............................................................................................9 2.3.2.1 Shear element coupling........................................................................................9 2.3.2.2 Safety device ........................................................................................................9
TRANSPORT AND STORAGE .............................................................10 3.1
Packing.........................................................................................................................................10
3.2
Transport ......................................................................................................................................10
3.3
Unpacking ....................................................................................................................................10
3.4
Scope of supply............................................................................................................................10
3.5
Notification of damage .................................................................................................................10
3.6
Storage.........................................................................................................................................10
FEATURES AND OPERATING PRINCIPLE.........................................11 4.1
Drive unit with torque measurement ............................................................................................11 4.1.1 Measuring principle...........................................................................................................11 4.1.2 Control elements...............................................................................................................12
4.2
Display..........................................................................................................................................13 4.2.1 Display area ......................................................................................................................13 4.2.2 Display keys ......................................................................................................................14 4.2.3 Display settings.................................................................................................................14
4.3
Measuring mixer* .........................................................................................................................15
4.4
Buret.............................................................................................................................................15
4.5
Data recording..............................................................................................................................16 4.5.1 Computer with printer and monitor* ..................................................................................16 4.5.2 Software ............................................................................................................................16
TECHNICAL DATA...............................................................................17
Absorptometer "C" Data Acquisition System
3
6
7
8
9
INSTALLATION ....................................................................................18 6.1
Basic requirements ......................................................................................................................18
6.2
Setup and assembly.....................................................................................................................18 6.2.1 Mounting the Absorptometer "C" and removing the shipping fixture ................................18 6.2.2 Computer and printer ........................................................................................................20 6.2.3 Mounting the measuring mixer .........................................................................................21 6.2.4 Connection of the buret.....................................................................................................22 6.2.5 Buret keys and mouse ......................................................................................................22 6.2.6 Initial filling of the buret .....................................................................................................23 6.2.7 Changing buret solution ....................................................................................................23
START-UP AND OPERATION..............................................................24 7.1
Manpower requirements ..............................................................................................................24
7.2
Preparations prior to test start......................................................................................................25
7.3
Test procedure .............................................................................................................................26 7.3.1 On-line diagram ................................................................................................................27 7.3.2 Test end ............................................................................................................................28 7.3.2.1 Test end after expiry of test time ........................................................................28 7.3.2.2 Early test end......................................................................................................28
7.4
Test evaluation .............................................................................................................................29
MAINTENANCE ....................................................................................30 8.1
General.........................................................................................................................................30
8.2
Cleaning the mixer .......................................................................................................................30
8.3
Abrasion check.............................................................................................................................31
8.4
Cleaning of the buret....................................................................................................................31
TROUBLE-SHOOTING .........................................................................32 9.1
Replacing the shear element .......................................................................................................32
9.2
General failures ............................................................................................................................34
10 ACCESSORIES ....................................................................................35 11 SPARE PARTS .....................................................................................35 12 ANNEX..................................................................................................35
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Absorptometer "C" Data Acquisition System
1 GENERAL INFORMATION ®
Brabender instruments/software are of a high technical standard and comply with the demand for simple and safe handling. At the same time, they are designed for universal application and, thus, for handling manifold technical tasks. It is strongly recommended to study this instruction manual very carefully before putting the instrument into operation in order to become familiar with the manifold possible applications and to use the instrument/software in an optimum way.
This instruction manual has been supplied together with the instrument/software and is intended for operation in practice. It is to make the user familiar with the instrument/software and to inform him about functional details and maintenance.
Safety instructions and precautions have to be observed in order to avoid accidents due to improper handling and operation. The information contained in this instruction manual will also be useful for the detection and repair of any possible troubles. This instruction manual is, thus, to be considered part of the instrument/software and must be available to the operating personnel.
®
Within the scope of legal regulations, Brabender refuses any liability for direct or indirect damage ® caused in connection with the delivery or use of Brabender instruments. This is especially true for ® improper use of Brabender instruments. Maintenance and service instructions have to be observed for reasons of safe operation and durability.
For safety reasons beware of unauthorized operation, any modification of Brabender instruments or any other unauthorized interference. At the same time, it should be considered that warranty will expire as a consequence of improper use and unauthorized operation and/or modification and/or any other unauthorized interference.
®
If there are any inquiries to Brabender - e.g. relating to handling of instruments/software, ordering of spare parts, accessories, additional equipment or to sending back instrument parts for maintenance or repair - please always state completely all data and complete numbers given on the name plate. For questions concerning the software, please also state the number of your software version (see CD-ROM) in addition to the software ident no. (see cover of instruction manual).
Brabender will, of course, always be at your disposal for any information going beyond the scope of this instruction manual.
1.1 Symbols and abbreviations Some of the elements of the instrument system mentioned in this instruction manual are optional or additional equipment. They are marked with a * within the text.
Absorptometer "C" Data Acquisition System
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1.2 Application The Absorptometer "C" is a computer controlled measuring system for determining the oil number in compliance with ASTM D 2414 including new methods B and C as well as ASTM D 3493. The Absorptometer "C" with USB port can be operated with infinitely variable speed controlled by the PC. -1 This allows to use the instrument not only for the standard test with the prescribed speed of 125 min but also with other speeds. Apart from that, the software allows to define a speed and/or titration profile (see separate instruction manual for the software).
1.2.1 Measuring principle The carbon black to be tested is filled into the measuring mixer of the Absorptometer. The high-precision buret adds liquid as a titrant to the powder sample in the running mixer. The resistance which the carbon black puts up against the rotating blades during oil addition is measured and the absorption characteristics of the carbon black are determined. As the liquid wets the sample, three distinct phases can be observed in the torque curve: • free flowing phase • agglomeration phase • end phase During the free flowing phase, liquid is absorbed into the structure of the carbon black. Upon absorption of sufficient liquid, the particles begin to adhere to each other and form agglomerates. Resistance to mixing rises, indicated by a sharp increase in torque. A maximum torque (saturation) is reached, followed by a state change from liquid into solid to solid into liquid. The test results are recorded by a computer* and can be represented graphically and/or numerically on the monitor already during the running test. The measured data are evaluated automatically in compliance with international standards and can be printed in the form of tables and diagrams.
1.3 Legal basis Laws of Product Liability and Instrument Safety, Legal Regulations of Germany and the European Union, European regulations for machines 89/392/EEC, editions 91/368/EEC and 93/68/EEC, and EEC regulations for electromagnetic compatibility 89/336/EEC incl. amendments 92/31/EEC and 93/68/EEC.
1.4 Noise measurement Noise measurement was made according to the regulations for machines. The measurement was made under normal operating conditions within the speed range of the instrument at a distance of approximately 1 m at a height of approximately 1.6 m. The sound pressure level is under 70 dB(A).
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Absorptometer "C" Data Acquisition System
2 SAFETY 2.1 Due application The instrument may only be used with suitable measuring mixers for absorption tests with suitable carbon blacks and the corresponding liquid. The instrument must not be used for processing explosives. The instrument may only be used when completely assembled.
2.2 Safety instructions for the user Prior to operation, the user must make sure of the correct condition and setup/assembly of the instrument. The instrument may be operated by skilled personnel only. Instructions for installation, setup, and operation must be observed. Disregard of the safety instructions may cause danger for the operating personnel. This is also true for arbitrary, unauthorized, and improper modifications to the instrument. When testing and processing polymers with Brabender test instruments, the data sheets of the respective polymer producer concerning safety regulations must be considered by all means. It is within the responsibility of the user's employer to set up the measures to be taken for averting any hazards that may arise when dangerous substances are handled. Under no circumstances, Brabender can be made liable for any damage or injuries caused by non-observance of such safety regulations. Never insert any rigid objects (e.g. spatula) into the mixer when the blades are running danger of injuries, danger of damage to the mixer.
Absorptometer "C" Data Acquisition System
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2.3 Safety precautions The instrument shall be protected by presetting alarm and limit values (see also separate instruction manual of the software). This also increases safety for the operating personnel.
2.3.1 Safety provisions at the Absorptometer 2.3.1.1 Emergency shut-off button At the front side of the Absorptometer, there is an emergency shut-off button (see fig. 1). Pressing the emergency shut-off button immediately stops the drive unit. The buret needs to be stopped manually. For starting the drive unit again after activation of the emergency shut-off button, draw out the emergency shut-off button in order to release it.
2.3.1.2 Two-hand control device The Absorptometer basic unit is equipped with a two-hand control device. The two-hand control device consists of two separate buttons and prevents unintentional operation of the open mixer. During cleaning, when the mixer cover is open or the bowl has been disassembled, the blades can only be operated by simultaneously pressing the two buttons (two-hand control). For regularly starting the instrument, first connect the safety plug with the safety switch socket. When the plug has been disconnected or when the cover is open or the bowl has been disassembled, the motor can only be started by simultaneously pressing the two buttons. The motor will then run with a fixed crawling -1 speed of 10 min .
Never clean the mixer while the blades are running - danger of most serious injuries! Never have two persons work simultaneously at the mixer. Otherwise, the drive might be switched on unintentionally while the mixer is open or during cleaning of the mixer.
Two-hand safety buttons
Plug for safety device
Emergency shut-off button
Fig. 1
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Absorptometer "C" Data Acquisition System
2.3.2 Safety provisions at the mixer 2.3.2.1 Shear element coupling The mixer is connected through a shear element coupling to the Absorptometer "C". In case of overload, the shear element will break, thus protecting both the mixer and the Absorptometer from damage. In case of change of shear element, only use original Brabender shear elements. Never mount any other shear element or steel pin. Otherwise, the system may be destroyed, danger of injuries.
2.3.2.2 Safety device The measuring mixer of the Absorptometer "C" is equipped with a safety device preventing unintentional operation of the mixer when the mixer bowl is open and grasping into the running mixer (see fig. 1). The cover of the mixer and the front plate have got a safety switch each. The counterpart of theses switches is positioned at the mixer bowl. The dynamometer can be started only if the switches of cover and front plate are plugged into their respective counterpart at the mixer bowl, i.e. only if the mixer cover is closed and the bowl is properly mounted. The safety switch is connected to the socket at the frontwall of the Absorptometer "C". As soon as the cover is opened or the mixer bowl is disassembled, the drive will automatically be stopped. The buret needs to be stopped separately!
Absorptometer "C" Data Acquisition System
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3 TRANSPORT AND STORAGE 3.1 Packing The instruments are thoroughly packed into wooden crates. Small parts and accessories are packed into cardboard boxes or bags in the crates. Additional equipment is packed either in the same crate as the instrument or in a separate crate, depending on the scope of the order.
3.2 Transport On the outside of the crate, there are signboards which always must be observed by all means:
This side up!
Fragile, handle with care!
Keep dry!
3.3 Unpacking First remove the cover of the crate, then take off the lateral walls. Take care of braces and supports within the crate as well as of bolt connections to the bottom of the crate, etc. When unpacking the equipment, take care that no small parts or accessories which are not fixed to the instrument remain in the packing material. Parts of the equipment may have loosened during transport and may be hidden between the packing material. Therefore, the whole packing material has to be searched very carefully before disposal. Instructions on labels and stickers need to be observed carefully. Covering hoods and films should not be removed until setup and commissioning, respectively.
3.4 Scope of supply The scope of supply must be compared with the shipping documents immediately after arrival at the place of ® destination. If there is any discrepancy, Brabender must be notified immediately.
3.5 Notification of damage Inspect the instrument immediately after unpacking for any signs of damage. Should any damage be evident, regardless of whether it apparently occurred during carriage or not, notify the delivering carrier immediately and claim damages with him. If necessary, the delivering carrier must be given the opportunity to inspect the shipment. Brabender also must be notified immediately. If, in the order, the risks of carriage were agreed to be taken by the buyer or by the receiver, the buyer or the receiver has to observe the regulations of the insurance policy.
3.6 Storage The instrument must be stored in dry rooms only. The admissible limit values of ambient temperature and humidity for storage and for operation are included in the list of technical data.
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Absorptometer "C" Data Acquisition System
4 FEATURES AND OPERATING PRINCIPLE The Absorptometer "C" Data Acquisition System consists of: • Drive unit (dynamometer) with display • Absorptometer software for Windows (ident no. 71100) ®
The following parts can or need to be ordered separately: • Measuring mixer* • Buret with bottle and mouse* • Computer with printer and monitor* In the standard version, the Absorptometer "C" is prepared for data transfer to a computer via a USB port. By ® means of the Absorptometer Windows program, the test data are recorded and evaluated.
4.1 Drive unit with torque measurement 4.1.1 Measuring principle The basic Absorptometer "C" unit is a drive unit with torque measurement (dynamometer) which provides a -1 variable speed of 0 - 175 min (software-controlled). The dynamometer unit with its modern, high-precision electronic torque measuring system is mounted on a sturdy and distortion-free base plate. The torque of the linear dynamometer is measured directly without any intermediate member. The measuring principle is based on making visible the resistance put up by the sample material (carbon black + liquid) against the rotating blades or rotors in the measuring head. The torque proportional to this resistance is recorded. The measuring signal is digitized in the Absorptometer "C" and transmitted to the computer via the USB port. The results are represented graphically on the monitor during the running test and can be stored and printed.
Absorptometer "C" Data Acquisition System
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4.1.2 Control elements The following control elements are located at the front side of the Absorptometer "C": • Main switch (ON/OFF) • Start/stop button • Emergency shut-off button • Socket for safety device • Two-hand control buttons (for running the mixer when open) • Coupling half of the drive unit • Mixer support
Bottle
Two-hand control buttons
Coupling half of drive unit
Start/Stop button Main switch Emergency shut-off button
Buret
Melt temperature mixer (option) Socket for safety device Mouse of buret
Base plate (mixer support
Fig. 2: Front view
On the rear side of the instrument, there are • Socket for mains cable • USB cable for connection to the PC • Buret connection cable
USB cable
Buret connection cable Mains cable GND
Fig. 3: Connections on the rear side
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Absorptometer "C" Data Acquisition System
4.2 Display Measurements can also be started directly from the Absorptometer ("Remote"-Mode) using the display and the display keys. Details concerning the test procedure and the functions of the display and of the individual display keys are included in the separate instruction manual of the Absorptometer "C" software.
Display area
Display keys
Fig. 4
4.2.1 Display area Depending on whether a test is to be started from a pattern or from the test list, the Absorptometer display shows the following: a) Start of a test from a pattern Operating mode
Pattern name Mixer Sample name Sample weight
Fig. 5 a
b) Start of a test from the test list Operating mode Instrument is ready for starting the test Sample name Mixer Sample weight
Fig. 5 b
Absorptometer "C" Data Acquisition System
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4.2.2 Display keys
/
Starts/stops the test in on-line mode
/
Starts/stops the motor
/
Starts/stops the buret in on-line mode when no test is running (e.g. for evaporating the buret)
+
Shows the display settings (see chapter 4.2.3)
/
Remote Mode: Display settings:
Selection of a pattern of selection of a test from the test list Scrolls to the previous/next line
Warning: Do not press the keys and one after the other! This key combination "deletes" the display reading. Nevertheless, the functions of the keys remain active, i.e. the motor and the buret can still be started/stopped. and
By pressing
successively, the display can be shown again.
If and were pressed successively several times, press several times in order to reinstall the display reading.
and
successively
4.2.3 Display settings By pressing With
+
, the display settings are shown (two pages).
/
, you can scroll line by line to the next or previous page of the display settings.
Fig. 6
The display settings cannot be modified.
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Absorptometer "C" Data Acquisition System
4.3 Measuring mixer* The Absorptometer measuring mixer consists of the following main parts: • Mixer bock with gear unit • Removable mixer bowl • Mixer blades The mixer is made of stainless steel or aluminum. The cover on the mixer bowl, together with the safety device, prevents grasping into the running mixer. For the test, the carbon black sample is filled into the mixer. The mixer is started, and liquid is added to the carbon black. Upon absorption of sufficient liquid, the carbon black particles begin to adhere to each other and form agglomerates. Resistance to mixing rises, indicated by a sharp increase in torque. A maximum torque (saturation) is reached, followed by a state change from liquid into solid to solid into liquid.
4.4 Buret The buret adds liquid as a titrant to the powder sample in the mixing chamber while the blades are running. For details concerning the buret, please refer to the separate instruction manual of the buret.
Absorptometer "C" Data Acquisition System
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4.5 Data recording 4.5.1 Computer with printer and monitor* The torque signal recorded during the absorption test is digitized in the Absorptometer and transmitted to the computer via a USB port. Furthermore, the nominal speed is transmitted from the computer via the USB port to the instrument. The software evaluates the data and represents the results as torque vs. time diagram. Manifold commercial computers can be used with the Absorptometer "C", provided they meet certain minimum requirements: • Computer: IBM or compatible PC (minimum Pentium II, 350 MHz, operating system Windows 98, 2000, or XP) Hard disk: free memory > 540 MByte Memory: minimum 64 MByte RAM, recommended: 128 MByte RAM Graphics card: minimum Super VGA 800 x 600, recommended: 1024 x 768 Port: USB • Monitor:
17"
• Printer:
All modern color printers (9 or 24 needle printers, ink jet printers, laser printers) are suited, provided they support Windows. Black and white printers can also be used, although reading a color diagram is, of course, much more comfortable.
4.5.2 Software For proper functioning of the software, it is imperative to install the USB drivers (included on the CD-ROM with the Absorptometer software) on hard disk! After evaluation by the supplied software (Absorptometer program for Windows ident no. 71100), the results can be represented in the form of a diagram (torque vs. time). The 32-bit software records the measuring data, represents the corresponding diagram on-line, and evaluates them in compliance with the most recent standards. The evaluated diagram with evaluation results, sample data, and test parameters can be represented on the monitor, saved, and printed. Saved tests can be reloaded at any time. The 32-bit software implies Windows 98, 2000, or XP operating system. The program does not run under Windows NT at present! For connection to an Absorptometer "C", the computer must be equipped with a USB port. If a computer is included in the scope of supply, the programs are factory-installed on hard disk. If a computer is provided by the customer, the programs first need to be installed on hard disk. The present instruction manual does not substitute the instruction manual supplied with the Absorptometer Windows program (27331) but complements it. Before working with the Absorptometer "C", make yourself familiar both with the software and with the operation of the instrument.
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Absorptometer "C" Data Acquisition System
5 TECHNICAL DATA Dimensions (W * H * D): Weight:
approx. 530 * 1010 * 900 mm without buret 75 kg
Power (factory-set to): Admissible voltage fluctuation:
110 / 220 / 230 / 240 V; 50/60 Hz; 3 A; L, N, PE (L1, L2, PE) + 6 %, - 10 %
Dynamometer: Speed: Safety device:
Environmental conditions: Storage: Operation:
Absorptometer "C" Data Acquisition System
0.15 kW electronic torque rheometer measuring range: 0 - 15 Nm -1 0 - 175 min -1 Two-hand control with crawling speed (approx. 10 min ) when mixer is open
Temperature: Humidity: Temperature:
-25°C...+55°C 80 % max. 18°C...35°C
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6 INSTALLATION 6.1 Basic requirements 1
The intended base for the installation of the instrument has to be clean and plane and strong enough to carry the instrument system. The unpacked instrument is recommended to be carried very carefully to the place of installation. Hard touch-downs must be avoided absolutely. In case lifting tools are used, they must be fixed as near as possible to the center of gravity of the instrument and care must be taken not to damage any sensitive parts like control buttons, sockets, etc. by straps and cables.
2
The connection and adaptation points for the power supply of the instrument are recommended to be located as near as possible to the place of installation of the instrument. For details concerning the required power supply, please refer to the technical data in chapter 5. Due to the high leakage current (> 3.5 mA), ground fault sensing relays are not permissible!
3
4
In the annex, please find a list of the special tools supplied with the instrument. Apart from these, normal tools like screw-drivers, etc. are required. Assembly is recommended only to be effected carefully by competent technical staff. Electric work is only allowed to be executed by competent electricians.
6.2 Setup and assembly Cover hoods and foils should only be removed at the final place of installation, when all remaining packaging has been removed. Information on labels and stickers are to be noticed exactly.
6.2.1 Mounting the Absorptometer "C" and removing the shipping fixture 1
Remove the 4 shock absorbers screwed into the bottom of the instrument. The instrument must not be operated on the shock absorbers.
2
Screw the supplied foot screws into the four bores.
3
With 2 persons, place the instrument in its final operating position on a sturdy, vibration-free table.
4
Level the instrument exactly horizontally by means of the four adjustable foot screws.
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Absorptometer "C" Data Acquisition System
5
The gear motor is secured as follows at the front wall: By means of the knurled nuts which are to fix the mixer on the base plate of the Absorptometer, a wooden block is fixed on the base plate. A threaded spindle is screwed through this wooden block into the clutch and fixed with two counternuts.
Threaded rod
Wooden block
Knurled nuts
Fig. 7: Shipping fixture Remove the shipping fixture as follows: 1. Loosen the counternuts and unscrew the threaded rod. 2. Loosen the knurled nuts and remove the wooden block. 3. Instead of the threaded rod, screw the supplied screw into the clutch in order to fix the coupling half on the driving axle. 6
Connect the mains cable to the mains socket on the rear side and across the mains. Before connecting the instrument to the mains, make sure that the power supplied meets the data given on the identification plates. Before connecting the instrument to the mains, make sure it is switched off.
USB cable
Buret connecting cable Mains cable
Fig. 8: Connections
Absorptometer "C" Data Acquisition System
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6.2.2 Computer and printer Because of the great number of computers suited for use with the Absorptometer "C", only some general notes can be given for mounting the computer* and printer*: The 32-bit software implies a Windows 98, 2000, or XP operating system. The program does not run under Windows NT at present! 1
Place the computer and peripheral units on a table beside the Absorptometer "C".
2
The only connection between the Absorptometer "C" and the computer is the USB port. Connect the USB cable from the rear wall of the instrument (fig. 8) to the USB port of the computer.
3
Connect the monitor* and printer* to the computer. Please also refer to the separate instruction manuals of your computer and printer. If there are any questions concerning connection of the computer*, please consult your local computer supplier.
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Absorptometer "C" Data Acquisition System
6.2.3 Mounting the measuring mixer 1
Make sure that the base plate at the front side of the Absorptometer "C" is perfectly clean and leveled horizontally.
2
Put the mixer onto the clean base plate of the drive unit.
3
Put the coupling disk onto the coupling half of the mixer.
4
Push the mixer against the basic unit until the cams of the coupling half of the drive unit fit into the recesses of the coupling disk. The knurled nuts screws must fit into the recesses of the mixer base plate.
5
Slightly tighten the knurled nuts in the base plate of the mixer with the supplied cam wrench.
6
Check whether the coupling disk has an axial clearance of approx. 1...2 mm allowing the coupling disk to move a little bit into every direction. There must be a clearance of approx. 1...2 mm between the coupling halves and the coupling disk, i.e. the driving force must only be transmitted by the driving pins and not through contact between the coupling halves and the coupling disk. Under no circumstances, the measuring mixer may be driven through contacting coupling halves without the coupling disk and/or without the original shear element.
7
Firmly tighten the knurled nuts in the recesses of the mixer base plate.
8
Connect the plug of the safety device with the corresponding socket at the front wall of the drive unit.
Coupling disk
Coupling half of the drive unit
Knurled nuts
Base plate Plug of safety device
Fig. 9: Mounting the mixer
Absorptometer "C" Data Acquisition System
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6.2.4 Connection of the buret 1
Place the buret on the left side of the Absorptometer (front view), if possible.
2
Connect the buret connection cable from the Absorptometer with COM 1 of the buret.
Mouse socket Buret connection cable COM 1 (Absorptometer) COM 2 (not occupied) Power switch ON/OFF Mains cable
Fig. 10: Buret connection 3
Screw the joint nut of the dosing hose onto the titration tube of the mixer.
4
Connect the suction hose to the bottle. Suction hose
Dosing hose to the mixer Metering pump
Bottle
Mouse
Fig. 11: Hose connections at the buret
6.2.5 Buret keys and mouse For buret operation, please also refer to the separate instruction manual of the buret. When connected to the Absorptometer "C", the buret is controlled from the PC only. The only exception is the rinse and initial filling program (see 6.2.6) which is started directly from the buret.
Fig. 12: Buret keys 22
Absorptometer "C" Data Acquisition System
6.2.6 Initial filling of the buret Please also refer to the separate instruction manual of the buret. Tilt the titration tube away from the mixer so that no liquid is titrated into the mixer yet. During initial filling, place a suitable vessel (min. capacity 100 ml) under the titration tube. 1
Remove the plug from the bottle, fill the bottle with liquid (DBP), then close the bottle with the plug.
2
Switch the buret on with the power switch on the rear side. The following initial display with be shown: TITRONIC universal Ver.: 99.14 Cylinder volume 20 ml Rins./init. fill..
Filling time 30 (s) System Menu Fig. 13: Initial buret display
The initial display will stand for approx. 10 s.
3
4
While the initial display is shown, press the program.
key for starting the rinse and initial filling
The "rinse/initial filling" function performs two suction and dosing cycles. The old solution will be flushed out of the cylinder before new liquid will be filled in automatically. Any air included in the hoses will be ejected during this process. Check whether sufficient liquid is pumped through the titration tube. If necessary, repeat the initial filling process.
5
The buret display now reads "0.00". The buret is ready for operation.
6.2.7 Changing buret solution Basically, a change of buret solution is done the same way as initial filling. For changing the buret solution, it must, however, be considered that the cylinder contents will not be ejected completely during rinsing, i.e. the remaining old liquid will mix with the new one. In order to minimize this mixing effect, run the rinse and initial filling program several times after having changed the buret solution.
Absorptometer "C" Data Acquisition System
23
7 START-UP AND OPERATION The Absorptometer "C" can only be operated with a computer. Therefore, please also read the separate instruction manual of the Absorptometer program with detailed instructions concerning entry of test parameters, test procedure, and evaluation. For proper functioning of the software, it is imperative to install the USB drivers (included on the CD-ROM with the Absorptometer software) on harddisk! Before starting the first test, make yourself familiar with the Absorptometer software. If a computer is included in the scope of supply, the programs are factory-installed on hard disk. If a computer is provided by the customer, the programs first need to be installed on hard disk. For software installation, please refer to the instruction manual of the Absorptometer program.
7.1 Manpower requirements Only trained and competent personnel shall be assigned to operate the instrument. During operation, one person usually suffices for operating the instrument.
24
Absorptometer "C" Data Acquisition System
7.2 Preparations prior to test start 1
Thoroughly clean and dry the mixer.
2
Mount the mixer to the Absorptometer (see chapter 6.2.3).
3
Make all hose connections between the individual system components and check tightness.
4
Switch on the instrument at the main switch. The drive must not yet be started!
5
Check the electric connection between the Absorptometer "C" and the computer (USB cable).
6
Check communication between the PC and the Absorptometer "C" and buret.
7
Completely enter the test parameters (see separate instruction manual of the Absorptometer program).
8
Fill the buret (see chapter 6.2.5).
Absorptometer "C" Data Acquisition System
25
7.3 Test procedure Please also refer to the separate instruction manual of the Absorptometer program. 1
Prepare the instrument system as described in chapter 7.2.
2
Fill the prescribed amount of carbon black into the mixer and close the cover.
3
Tilt the titration tube over the opening in the mixer cover.
4
Depending on the type of test (individual test, test list, pattern), start the test as follows: 1. Individual test:
Click the "Start" button in the test parameter window.
2. Test list/Pattern:
• Go on-line (
• Make the connection (
).
, green connection line).
• The monitor shows the following window:
• Press the "Test Start" key at the Absorptometer panel. Even if the buttons and have not yet been clicked, the program automatically makes the connection and starts the "Remote" mode, i.e. clicking of these two buttons is not imperative for starting the test. 5
The test now runs automatically. The monitor of the PC shows the measured curve parallel to the running test (see chapter 7.3.1). The measured data are converted to and displayed in "ml/100 g".
6
Depending on the program settings (menu "Options" - "Settings" - "Program", index card "Measurement"), the test is stopped automatically and the speed is set to zero.
7
Clean the mixer (see chapter 8 "Maintenance").
8
The buret is refilled automatically.
9
Upon completion of all tests and final cleaning of the mixer, run down the program: 1. Click (or select "Test" - "Exit" in the menubar). 2. The monitor shows the following question:
3. If the test has not yet been saved, the program will ask whether you want to save the test. 10 26
Clean the buret (see chapter 8.3 and separate instruction manual of the buret). Absorptometer "C" Data Acquisition System
7.3.1 On-line diagram During the test, the measuring diagram is shown on-line (display in "ml/100 g"):
Fig. 14 The buttons on top of the diagram have the following functions: Button
Function Opens a window for changing the diagram: Under "Axis", the axis scaling, colors, decimals of the scaling (Dec.), and grid can be edited:
Fig. 15 Under "Curves", the line thickness and the colors of the individual measuring curves can be edited. Ticking or unticking the boxed in the middle shows or hides the respective curve(s) in the diagram). Increases/decreases the line thickness Shows (✔)/hides the curve in the diagram
Opens a window for selecting/defining the line color
Fig. 16 Clicking this button shows the digital values in the right top corner of the diagram when scanning the curves with the cursor:
Fig. 17 a
Fig. 17 b
Zooms a section of the curve Copies the diagram as bitmap into the Windows clipboard
Absorptometer "C" Data Acquisition System
27
7.3.2 Test end 7.3.2.1 Test end after expiry of test time 1
When the preset test end time has been reached (see software instruction manual: menu "Options" - "Setting" - "Program", index card "Measurement"), data transfer is stopped automatically.
2
The Absorptometer speed is set to zero automatically.
7.3.2.2 Early test end The test can be stopped anytime before the preset test end time has been reached. 1
Click the
2
The Absorptometer speed will be set to zero.
28
button.
Absorptometer "C" Data Acquisition System
7.4 Test evaluation Upon completion of the test, the evaluation can be shown and the test can be saved and printed. Use the corresponding buttons (toolbar) or menus (menubar) in order to start one of the following functions: Button
Menu
Function
"View" - "Evaluation"
Displays the evaluation:
The values of these 2 pairs only differ if the normalization procedure was run for this mixer
Fig. 18 Close Copy Change evaluation
closes the evaluation window copies the evaluation window into the clipboard opens another window for editing TLS percentages for the evaluation which will then be shown above the "Comment" line in the evaluation window.
"Test" - "Save"
Saves the test
"Test" - "Preview"
Shows the print preview:
Close Print Copy Save as "Test" - "Print"
Fig. 19 closes the print preview prints the print preview copies the preview into the clipboard saves preview as a graphic or html file
Prints the evaluation and the test diagram as shown in the print preview.
Absorptometer "C" Data Acquisition System
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8 MAINTENANCE 8.1 General The instrument system does not require any special maintenance. Nevertheless, it should be inspected in regular time intervals. Always keep the instrument clean and dry. This applies in particular to the measuring mixer, which must be cleaned and dried very thoroughly after each test (see 8.2) The drive unit has lifetime lubrication. If, however, any leakage is detected, notice must be given to Brabender immediately.
8.2 Cleaning the mixer The measuring mixer needs to be cleaned thoroughly after each test in order to ensure proper function. The mixer must be cleaned immediately after each test, and, in case of long standstill times, also prior to starting the next test. Do not leave the material in the mixer after use. 1
In order to facilitate cleaning, add carbon black into the mixer and have the mixer run for a certain time (do not add any liquid!).
2
Stop the drive unit.
3
Open the mixer cover.
4
Remove the star grip screws at the front plate of the mixer.
5
Remove the front plate.
6
Remove the material with a wooden or plastic spatula as far as possible. Never use any rigid or pointed tools for cleaning the mixer - danger of destruction of the mixer surface! By means of the two-hand control device, the mixer blades can be rotated in order to completely clean the mixer.
7
Disassemble the mixer bowl.
8
Subsequently, thoroughly clean the mixer bowl, rear wall, and the blades with a dry cloth.
9 10
30
Reassemble the mixer. Before the next test, tilt the titration tube over the mixer
Absorptometer "C" Data Acquisition System
8.3 Abrasion check In case of everyday use, check the system for abrasion once a year. For this purpose, run a test with a simple and reproducible reference material. The results of the abrasion checks must not deviate significantly from the reference curve. Take care to run these tests under test conditions identical to those of the reference test. Apart from that, a maintenance contract can be made with the Brabender customer service.
8.4 Cleaning of the buret For cleaning and maintenance of the buret, please refer to the detailed instructions in the corresponding separate instruction manual. Prior to using any chemical substances, inform yourself how to use these substances and make yourself familiar with the guidelines for proper handling of dangerous substances (especially protective clothes, guidelines for dangerous goods and guidelines concerning disposal of dangerous substances). It is within the responsibility of the user's employer to set up the measures to be taken for averting any hazards that may arise when dangerous substances are handled.
Prior to restarting the buret, run the "rinse/initial filling" program in order to evaporate any air included in the buret and in the hoses (see chapter 6.2.6).
Absorptometer "C" Data Acquisition System
31
9 TROUBLE-SHOOTING 9.1 Replacing the shear element The mixer coupling has got a shear element which protects both drive unit and mixer from damage due to overload. If the shear element has broken, it must be replaced. Always first find out the cause for the shear element failure and repair it. 1
For replacing the shear element, set the Absorptometer speed to zero.
2
Disassemble the mixer from the Absorptometer.
3
Unscrew the two Allen screws fixing the cover and remove the mixer cover:
Shear element
Fig. 20: Unscrew Allen screws of mixer cover 4
Fig. 21: Remove the mixer cover
Remove the retaining ring:
Retaining ring
Fig. 22 5
Remove the front part of the coupling:
Shear element
Fig. 23 6
32
Remove the residues of the broken shear element (hit them out, if necessary).
Absorptometer "C" Data Acquisition System
7
If the residues of the shear element cannot be removed from the rear coupling half by shaking it, disassemble the rear coupling half as follows: 1. Turn the coupling until the Allen screw is on top. 2. Loosen the Allen screw (do not unscrew it completely):
Loosen the Allen screw
Fig. 24 3. Remove the rear coupling disk:
Fig. 25 4. Hit out the shear element. 8
Insert the new shear element. Only use original Brabender shear elements. Never mount any other shear element or steel pin. Otherwise, the system may be destroyed, danger of injuries!
9
Remount the mixer in reverse order. When remounting the rear coupling half, take care that the flat part of the driving shaft is on top and that the Allen screw of the coupling disk is on top as well. The inner part of the rear coupling half must flush with the driving shaft:
Coupling and shaft must flush!
Fig. 26
Absorptometer "C" Data Acquisition System
33
9.2 General failures In the following, some possible troubles and recommended actions are described: Trouble
Action
Dynamometer cannot be started
Check position of emergency shut-off switch Check power supply Check fuses
Dynamometer cannot be started although power supply is on
Check whether the plug of the two-hand control device is connected to the corresponding socket.
No display reading although power supply is on + have been pressed Perhaps the keys successively once or several times (see 4.2.2). In this case, press the keys + successively once or several times in order to reinstall the display reading.
34
Absorptometer "C" Data Acquisition System
10 ACCESSORIES For handling and operating the instrument as well as for cleaning, useful accessories are supplied with the instrument (see accessories list). In case of loss or wear or wastage, the individual parts can be ordered like spare parts at any time.
11 SPARE PARTS For all inquiries or orders of spare parts or additional equipment for Brabender test instruments, please always state the model number and the serial number of the instrument for which you require the respective spare parts or additional equipment (see spare parts list). You will find these numbers on the name plates attached to each instrument. Your order or inquiry cannot be handled without these numbers. By additionally stating the order number under which you once received the corresponding instrument from Brabender, you can facilitate handling of your order/inquiry even more. All instruments ever supplied by Brabender are registered in a file. They can, however, only be found with the help of these numbers. Spare parts can be ordered from Brabender directly or from any local Brabender representative.
12 ANNEX Lists:
Accessories Spare parts Wiring diagrams Please also observe the separate instruction manuals for the other instruments working together in a system.
Absorptometer "C" Data Acquisition System
35
Accessories for Absorptometer "C" Qty. 1 1 2 1 1 1 100 1
36
Ident no.
Description
2 41 772 2 97 318 2 18 062 2 18 323 4 35 117 4 70 451 2 98 274 2 97 547
Buret T Universal, 230 V, 50/60 Hz Face spanner no. 752, 20 * 4 mm Fuse 5 * 20 mm, 6.3 A/MT Fuse 5 * 20 mm, 6.3 A/T Type 19195 Shipping fixture Threaded rod M6 * 185 Wooden spatula (for cleaning the mixer) 1 3 Set of Allen keys /16" - /8"
Absorptometer "C" Data Acquisition System
Spare parts for Absorptometer "C" Ident no.
Description
2 35 220 2 41 382 2 41 650 2 90 099 2 44 422 4 41 105
2 21 080 2 21 081 2 21 087 2 21 082
Three-phase motor 0.25 kW G80F/4DG71B-4 Load cell Z6 FD1/5 kg accuracy 0.1 % Recording electronics AED 9101 + AD 101 B Radial bearing 1208 Shear element Knurled nut Main switch Luminous push-button key, locking, white, without lamp Lamp W 2 * 4.6 d, 24 V/1 W WBGL24 for RMQ 16 push-button Contacting element 1 "ON" RMQ 16 Push-button drive Emergency shut-off button Emergency shut-off button with LED 24 V Contacting element 1 "ON" RMQ 16 Contacting element 1 "OFF" RMQ 16 Push-button "Start" Push-button plate "Start" RMQ 16 Contacting element 1 "ON" 25 * 25, RMQ 16 Luminous push-button key with 24-V lamp Q25LT-GN/WB Push-button "Stop" Push-button plate "Stop" 25 * 25, RMQ 16 Contacting element 1 "OFF" RMQ 16 Luminous push-button key with 24-V lamp Q25LT-RT/WB Safety buttons for 2-hand control Push-button switch without contacting element 25 * 25, RMQ 16 Contacting element 1 "ON" RMQ 16 Push-button plate (hand) 25 * 25, RMQ 16 Contacting element 1 "OFF" RMQ 16
2 21 530 2 21 558 2 21 561 2 41 680 2 18 301 2 17 977 2 18 323 2 17 238 2 41 783 2 41 784 2 21 227 2 41 772 2 21 549 2 21 589 2 21 618 2 17 560 6 79 831 2 18 287 - nn -
Power supply ML50.100 85-264 V AC/24 V DC, 2.1 A Dc contactor 24 V/1.8 W/9 A 3-pol./1 S Two-hand safety relay S/Ö SRB-ZHK-24 V Temperature ramp controller 2416 85-264 V AC (RS 232) Thermocouple flange socket type FSTC-J-FF Miniature relay ZT 570 L24 (control of operating hour counter) Fuse 5 * 20 mm, 6.3 A, T type 19195 (mains fuse of input filter) Flange socket MEB 60 HS black, 6-pole Terminal VT 100 incl. connecting cable 8 Port RS 232 USB Interface Edgeport Autotransformer VT35-EN 350 VA/ P/S:110/220/230/240 V Piston buret T Universal 230 V, 50/60 Hz Counter (operating hours) 196-264 V, 50/60 Hz USB cable 3.0 m (PC connection USB) Connecting cable RS 232 - 4-pole mini-DIN buret Mains connecting cable Spare inverter Lust CDA 32.004, C1.2, 0.75 kW Fuse 5 * 20 mm, 1.6 A, T, DIN 41571 (power supply of control unit) Star grip screws for mixer front plate
2 21 234 2 21 545 2 21 081 2 21 129 2 21 147 2 21 081 2 21 082 2 21 430 2 21 081 2 21 174 2 21 509 2 21 082 2 21 176
Absorptometer "C" Data Acquisition System
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