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Congratulations !
Your new proCHEM-C controller is the latest in simple, reliable process
control instrumentation. With correct operation and maintenance, your
proCHEM-C will give you many years of reliable service.
The proCHEM-C is a breeze to operate. This manual has been
designed to help you get started, and also contains some handy
application tips. If at any stage you require assistance, please contact
either your local TPS representative or the TPS factory in Brisbane.
The manual is divided into the following sections:
1. Table of Contents
Each major section of the handbook is clearly listed. Sub-sections
have also been included to enable you to find the information you
need at a glance.
2. Introduction
The introduction has a diagram and explanation of the display and
controls of the proCHEM-C. It also contains a full listing of all of the
items that you should have received with the unit. Please take the
time to read this section, as it explains some of items that are
mentioned in subsequent sections.
3. Main Section
The main section of the handbook provides complete details of the
proCHEM-C, including operating modes, calibration, troubleshooting,
specifications, and warranty terms.
4. Appendices
Appendices containing background information and application notes
are provided at the back of this manual.
proCHEM-C
Process Controller
Version
: 1.0
Date
: 04-Feb-2003
Author
: MS
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Table of Contents
Troubleshooting
Related Manuals for TPS proCHEM-C
Summary of Contents for TPS proCHEM-C
- Page 1 2. Introduction The introduction has a diagram and explanation of the display and controls of the proCHEM-C. It also contains a full listing of all of the items that you should have received with the unit. Please take the time to read this section, as it explains some of items that are mentioned in subsequent sections.
- Page 2 Page 2 TPS Pty Ltd ABN 30 009 773 371 4 Jamberoo Street Springwood, Brisbane, Australia, 4127 Phone : (07) 32 900 400 International : 61 7 32 900 400 : (07) 3808 4871 International : 61 7 3808 4871 Email : tps@tps.com.au...
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Page 3: Table Of Contents
Page 3 Contents Introduction ....................4 proCHEM-C Illustration ...............4 Unpacking Information ................6 Specifications..................7 Operating Modes ..................8 Installation and Set-up ................9 Connection and Configuration Diagram ..........9 Mounting the Enclosure..............10 Mounting the Sensor .................11 Terminal Connections ...............12 Setting the Control Limit..............15 Selecting Current or Voltage Output ..........18 Calibrating the 4 to 20mA Output ............19... -
Page 4: Introduction
Page 4 1. Introduction 1.1 proCHEM-C Illustration... - Page 5 The Function Switch is used to select the mode of operation. See section 2. Display Window The proCHEM-C has a large, easy to read LCD display. The units of measurement are clearly shown in the window beneath the display. Terminal Cover...
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Page 6: Unpacking Information
Page 6 1.2 Unpacking Information Before using your new proCHEM-C, please check that the following accessories have been included: Part No 1. proCHEM-C Process Controller ..........111122 2. proCHEM-C Handbook ............130050 3. 200mL of Conductivity standard to suit specified range. -
Page 7: Specifications
Page 7 1.3 Specifications Ranges k=0.1 Sensor ..0 to 19.99 µS/cm, 0 to 199.9 µS/cm or 0 to 1999 µS/cm k=1.0 Sensor ..0 to 199.9 µS/cm,0 to 1999 µS/cm, or 0 to 19.99 mS/cm k=10 Sensor ..0 to 1999 µS/cm, 0 to 19.99 mS/cm, or 0 to 199.9 mS/cm Resolution .............. -
Page 8: Operating Modes
Lower Limit. See section 3.5. 3. Calibrate : Switch Calibrate mode place proCHEM-C into standby (eg. when calibrating). This mode disables the two output relays to avoid chemicals being added when placing the sensor into calibration buffers. -
Page 9: Installation And Set-Up
Page 9 3. Installation and Set-up 3.1 Connection and Configuration Diagram The diagram below is provided as a reference for the terminal connections, configuration jumpers and user-adjustable trimmers that are discussed throughout this section. -
Page 10: Mounting The Enclosure
Page 10 3.2 Mounting the Enclosure The proCHEM-C can be wall-mounted with 3 screws. Two mounting points are located underneath the terminal cover, and are positioned so that they do not affect the waterproofing of the enclosure. The third mounting point is centrally located near the top of the rear of the enclosure, and has been designed to hook over a screw-head. -
Page 11: Mounting The Sensor
Dip Mounting In-line Mounting 1. Injection point close to sensor. 1. Injection point upstream from 2. Continuous stirring. and close to sensor. 2. Mixing container after injection and before sensor. 3. A flow-through assembly for in-line mounting is available from TPS. -
Page 12: Terminal Connections
Page 12 3.4 Terminal Connections 3.4.1 Power Connections All power connections are on the main terminal block (H1), which has 18 terminals. Note: The power connections detailed below are for normal mains power. Refer to section 10.3 for power wiring details when the 12V DC power option is fitted. - Page 13 Page 13 -ve of current or voltage output Customer Defined...
- Page 14 Page 14 3.4.2 Sensor Connections All sensor connections are on the 6-way terminal block which is on the right hand side of the enclosure. Terminal Connection Colour Conductivity Sensor ATC Blue Conductivity Sensor ATC White No Connection Guard Shield/Braid (when fitted).
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Page 15: Setting The Control Limit
The Upper and Lower control limits can both be set over the full scale of the proCHEM-C. The unit is set up in the factory for the Upper Limit LED and relay to be activated when the reading rises above the Upper Limit. - Page 16 The proCHEM-C must be switched OFF before changing jumper settings. To reverse the action of the Lower Limit, and have two Limits that activate the High and Low LED’s and relays...
- Page 17 UPPER HYST (RV4) trimmers in the terminal area. Turning the trimmer clockwise increases the hysteresis and turning it anti-clockwise decreases the hysteresis. TPS DOES NOT recommend that this setting be altered, unless it is absolutely necessary. The hysteresis trimmer should only be adjusted a little at time. The process being controlled should then be closely monitored over a time to ensure that the desired control is being achieved.
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Page 18: Selecting Current Or Voltage Output
3.6 Selecting Current or Voltage Output The Current/Voltage Output jumpers in terminal section can be user-set for either 4 to 20mA or 0 to 1V DC output. The proCHEM-C must be switched OFF before changing jumper settings. The jumper settings for 4 to 20 mA output are:... -
Page 19: Calibrating The 4 To 20Ma Output
3.7 Selecting Standard or Custom 4 to 20 mA Output The proCHEM-C is normally supplied to provide 4 to 20 mA for the full scale of the readout. If a custom 4 to 20 mA output (eg. 4 to 20 mA... - Page 20 Page 20 3.8 Calibrating the 4 to 20mA Output The 4 to 20mA output of the proCHEM-C is factory calibrated. However, TPS has provided calibration controls for the 4mA and 20mA points in case this requires adjustment in the field.
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Page 21: Calibration
Page 21 4. Calibration 4.1 Calibration Procedure Switch the proCHEM-C on. Ensure that the Conductivity sensor is correctly connected (see section 3.4.2). Set the function switch to Calibrate, to ensure that the relay outputs are not activated during calibration. For the GK-1 sensor (part no 112206), ensure that the white protective cover is fitted with the vent hole towards the cable end of the sensor. -
Page 22: Calibration Notes
10. When the reading has stabilised, adjust the Span control until the display shows the value of the standard. 11. Rinse the Conductivity sensor in distilled water and blot dry. 12. The proCHEM-C is now calibrated and ready for Conductivity measurements. 4.2 Calibration Notes The Zero calibration is quite stable long term, and only needs to be performed monthly as a routine check. -
Page 23: Process Monitoring
Page 23 5. Process Monitoring Once the proCHEM-C has been installed, connected and calibrated, it can be used for continuous monitoring. To monitor the process, WITHOUT any control or alarm functions switch the function switch to Calibrate. 6. Automatic Control For Automatic Alarming or Control, switch the function switch to Automatic Control to enable the Alarm LED’s and the relay outputs. - Page 24 CONTROLLER, VOIDING WARRANTY. Before switching the proCHEM-C back to Automatic Control mode, ensure that the cause of the blown fuse has been eliminated. If the current drain of the device connected to the relay output is greater than 1 Amp, an external contactor should be used. Please consult an...
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Page 25: Troubleshooting
2. Mains power input Check connections (see incorrectly connected. section 3.4.1). 3. Instrument is faulty. Return to TPS for repair. Alarm LED or 1. Limit not set correctly for Set the J3 or J4 Polarity relay output do “too high” or “too low”... -
Page 26: Conductivity Troubleshooting
Page 26 8.2 Conductivity Troubleshooting Symptom Possible Causes Remedy Zero calibration 1. Electrode has Zero Thoroughly rinse electrode fails (insufficient error. in distilled water and allow to completely dry in air range with ZERO before attempting zero control). calibration. If instrument does not calibrate at Zero with electrode disconnected, then the instrument is faulty. - Page 27 Page 27 Conductivity Troubleshooting, continued… Inaccurate 1. Electrode may have a Clean electrode, as per the readings, even build-up of dirt or oily instructions detailed in when calibration material on electrode section 10.2.2. is successful. wires. 2. Platinum-black coating Electrode requires has worn off.
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Page 28: Warranty
TPS Pty. Ltd. has a fine reputation for prompt and efficient service. In just a few days, our factory service engineers and technicians will examine and repair your equipment to your full satisfaction. - Page 29 Page 29 TO OBTAIN THIS SERVICE, PLEASE FOLLOW THIS PROCEDURE: Return the instrument AND ALL SENSORS to TPS freight pre-paid and insured in its original packing or suitable equivalent. INSIST on a proof of delivery receipt from the carrier for your protection in the case of shipping claims for transit loss or damage.
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Page 30: Appendices
10. Appendices 10.1 Re-setting the Display Range The range of the proCHEM-C may be re-set using the table of jumper settings shown over the page. Refer to the diagram in section 3.1 for the location of the J3 and J4 jumper blocks. - Page 31 Page 31 proCHEM-C Range Settings… Sensor k-factor Range k=0.1 k=1.0 k=10 0 to 19.99 µS/cm This range not This range not 1 2 3 4 available available k=1.0 sensor k=10 sensor Decimal Point 0 to 199.9 µS/cm This range not...
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Page 32: Care, Cleaning And Maintenance Of Conductivity Electrodes
10.2 Care, Cleaning and Maintenance of Conductivity Electrodes 10.2.1 Care of Conductivity electrodes The conductivity section of the electrode supplied with your proCHEM-C consists of two platinum wires that are plated with a layer of “platinum- black”. This is quite a soft layer and is required for stable, accurate measurements. - Page 33 10.2.3 Replatinising Conductivity Electrodes There are several ways to replatinise Conductivity electrodes. 1. The simplest way is to return the electrode to the TPS factory. We can fully clean the electrode, replatinise it and test all aspects of its performance.
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Page 34: Power Terminal Connections When 12V Dc Option Is Fitted
Page 34 10.3 Power Terminal connections when 12V DC option is fitted Terminal Connection Negative of 12V DC Input No connection for 12V DC version. No connection for 12V DC version. No connection for 12V DC version. No connection for 12V DC version. No connection for 12V DC version. -
Page 35: Relay Output Wiring Examples For Mains Powered Units
Page 35 10.4 Relay Output Wiring Examples for mains powered units The diagrams below provide some examples of wiring the relay outputs for standard mains powered proCHEM-C units. -
Page 36: Relay Output Wiring Examples For 12V Dc Powered Units
Page 36 10.5 Relay Output Wiring Examples for 12V DC powered units The diagrams below provide some examples of wiring the relay output for proCHEM-C units with the 12V DC power option.
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