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Summary of Contents for TPS ProChem R
- Page 1 ProChem_R TPS Pty Ltd ABN 30 009 773 371 Phone: (07) 32058027 International: 61 732058027 Email: sales@tps.com.au Web: www.tps.com.au...
- Page 2 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.
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Page 3: Table Of Contents
Contents 1. Introduction 1.1 proCHEM-R Illustration 1.2 Unpacking Information 1.3 Specifications 2. Operating Modes 3. Installation and Set-up 3.1 Connection and Configuration Diagram 3.2 Mounting the Enclosure 3.3 Mounting the Sensor 3.4 Terminal Connections 3.5 Setting the Control Limit 3.6 Selecting Current or Voltage Output 3.7 Selecting Standard or Custom 4 to 20 mA Output 3.8 Calibrating the 4 to 20mA Output 3.9 CMRR (RV7) Control... - Page 4 10.3 Relay Output Wiring Examples for 12V DC powered units...
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Page 5: Introduction
1. Introduction 1.1 proCHEM-R Illustration... - Page 6 Set Upper Limit Control Adjust this control to the Millivolt value at which the High LED and relay output are activated. Factory-set to activate when the reading is above the Upper Limit. See section 3.5. High LED The High LED provides visual indication of when the Upper Limit has been exceeded.
- Page 7 The terminal cover provides easy access to all of the connections, relay output fuses, configuration jumpers and user-adjustable trimmers. The cover is water resistant to IP65.
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Page 8: Unpacking Information
1.2 Unpacking Information Before using your new proCHEM-R, please check that the following accessories have been included: Part No 1. proCHEM-R Process Controller 111122 1. ZoBell Redox Standard, 229mV, 200mL ea Part A & Part B 121309 1. proCHEM-R Handbook 130050 Options that may have been ordered with your proCHEM-R: Dip mounted Redox Sensors, and submersible assembly…... -
Page 9: Specifications
1.3 Specifications Range 0 to 1000 mV Resolution 1 mV Accuracy ±1 mV Linearity ±1 mV Repeatability ±1 mV Ambient Drift <0.02% Span per 1 C change Long term drift <0.1% per year Input Impedance >3 x 10 Ω Zero Range ±100 mV Common Mode Rejection 120 dB... -
Page 10: Operating Modes
2. Operating Modes The function switch is used to select the required mode. The four operating modes available are… Set Upper Limit : Switch to Set Upper Limit when setting the Millivolt value at which the High LED and relay output are activated. The relay output is not operational in this mode. -
Page 11: Installation And Set-Up
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 12: Mounting The Enclosure
3.2 Mounting the Enclosure The proCHEM-R 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 13: Mounting The Sensor
3.3 Mounting the Sensor Mounting the sensors is a very important aspect of the installation, and is often done incorrectly. In automatic control situations, the sensor should always be mounted as close as possible to the injection point. This will cause the sensor to detect the added chemicals immediately, and shut the addition off until mixing has taken place. -
Page 14: Terminal Connections
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 10.1 for power wiring details when the 12V DC power option is fitted. - Page 15 -ve of current or voltage output Customer Defined 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 No Connection No Connection Solution Guard Customer-defined. Green is recommended.
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Page 16: Setting The Control Limit
3.5 Setting the Control Limit The Upper and Lower control limits can both be set over the full scale of the proCHEM-R. 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. Similarly, the Lower Limit LED and relay are factory set to be activated when the reading drops below the Lower Limit. - Page 17 3.5.3 Reversing the default control direction The Upper Limit control action can be reversed to activate the Upper Limit LED and relay when the reading drops below the Upper Limit. Similarly, the Lower Limit control action can be reversed to activate the Lower Limit LED and relay when the reading rises above the Lower Limit.
- Page 18 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 19: 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-R must be switched OFF before changing jumper settings. The jumper settings for 4 to 20 mA output are: The jumper settings for 0 to 1V DC output are: Note that the spare jumper has been fitted to a spare Current/Voltage Output jumper pin. -
Page 20: Selecting Standard Or Custom 4 To 20 Ma Output
3.7 Selecting Standard or Custom 4 to 20 mA Output The proCHEM-R 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 output for 600mV to 800mV) is supplied, the user can still change between this custom output and the normal 4 to 20 mA output for full scale. -
Page 21: Calibrating The 4 To 20Ma Output
3.8 Calibrating the 4 to 20mA Output The 4 to 20mA output of the proCHEM-R is factory calibrated. However, TPS has provided calibration controls for the 4mA and 20mA points in case this requires adjustment in the field. Calibrating the 4 to 20mA output…... -
Page 22: Factory Configuration (J3) Jumpers
3.10 Factory Configuration (J3) Jumpers The Factory Configuration (J3) jumpers are factory set, and must not be altered. In case any of these jumpers are changed or removed, re-fit them as shown below. The proCHEM-R must be switched OFF before changing jumper settings. -
Page 23: Calibration
4. Calibration 4.1 Calibration Procedure 1. Switch the proCHEM-R on. 1. Connect the Redox sensor and ensure that a solution guard rod is fitted. (see section 3.4.2). Remove the wetting cap from the Redox sensor. 1. Set the function switch to Calibrate, to ensure that the relay output is not activated during calibration. -
Page 25: Calibration Notes
2. When the reading has stabilised, adjust the ZERO control until the display shows the value of the ZoBell standard. This will be one of the following… a) 229 mV for Ag/AgCl reference systems filled with saturated KCl. (All of the Redox sensors listed in section 1.2 are this type.) b) 192 mV for Ag/AgCl reference systems filled with 1 Molar KCl. -
Page 26: Process Monitoring
5. Process Monitoring Once the proCHEM-R 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 28 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 electrical contractor or TPS for details.
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Page 29: Troubleshooting
1. Mains power input Check connections (see incorrectly connected. 3.4.1 section 1. 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 30: Warranty
(3) months. There are no express or implied warranties which extend beyond the face hereof, and TPS Pty. Ltd. is not liable for any incidental or consequential damages arising from the use or misuse of this equipment, or from interpretation of information derived from the equipment. - Page 31 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 32 TO OBTAIN THIS SERVICE, PLEASE FOLLOW THIS PROCEDURE: Return the instrument AND ALL SENSORS to TPS freight pre-Raid 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 33: Appendices
10. Appendices 10.1 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 34: Relay Output Wiring Examples For Mains Powered Units
10.2 Relay Output Wiring Examples for mains powered units The diagrams below provide some examples of wiring the relay outputs for standard mains powered proCHEM-R units. - Page 36 10.3 Relay Output Wiring Examples for 12V DC powered units The diagrams below provide some examples of wiring the relay output for proCHEM-R units with the 12V DC power option.
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