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Congratulations !
Your new miniCHEM-Redox monitor is the latest in simple, reliable process
monitoring instrumentation. With correct operation and maintenance, your
miniCHEM-Redox will give you many years of reliable service.
The miniCHEM-Redox 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 miniCHEM-Redox. 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
miniCHEM-Redox,
troubleshooting, specifications, and warranty terms.
4. Appendices
Appendices containing background information and application notes are
provided at the back of this manual.
including
operating
modes,
calibration,
miniCHEM-Redox
Process Monitor
Version
: 2.01
Date
: 27/09/2006
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Table of Contents
Troubleshooting
Related Manuals for TPS miniCHEM-Redox
Summary of Contents for TPS miniCHEM-Redox
- Page 1 The introduction has a diagram and explanation of the display and controls of the miniCHEM-Redox. 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 Unit 6 / 253 Leitchs Road Brendale, QLD, Australia, 4500 Phone : (07) 32 058 027 International : 61 7 32 058 027 : (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 1.1 miniCHEM-Redox Illustration ................4 1.2 Unpacking Information ..................6 1.3 Specifications ......................7 Operating Modes ..................8 Installation and Set-up ................9 3.1 Connection and Configuration Diagram ..............9 3.2 Mounting the Enclosure ..................10 3.3 Mounting the Sensors .................. -
Page 4: Introduction
Page 4 1. Introduction 1.1 miniCHEM-Redox Illustration... - Page 5 The Function Switch is used to select the mode of operation. See section 2. Display Window The miniCHEM-Redox has a large, easy to read LCD display. The units of measurement are clearly shown in the window beneath the display. Terminal Cover The terminal cover provides easy access to all of the connections, (optional) relay output fuse, configuration jumpers and user-adjustable trimmers.
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Page 6: Unpacking Information
Page 6 1.2 Unpacking Information Before using your new miniCHEM-Redox, please check that the following accessories have been included: Part No 1. miniCHEM-Redox Process Monitor ...... 111142 2. ZoBell Redox Standard ..........121309 (200mL each of Part A and Part B) 3. -
Page 7: Specifications
Page 7 1.3 Specifications Range ....................0 to +1000 mV or 0 to 1000 mV (factory option) Resolution ....................... 1 mV Accuracy ....................... ±1 mV Linearity ......................±1 mV Repeatability ....................±1 mV Ambient Drift ................<0.02% span/ Long term drift ................. <0.1% per year Zero Range .................... -
Page 8: Operating Modes
MANUAL : Switch to MANUAL to manually dose chemicals when the optional relay output is fitted. The relay output will be activated for as long as the miniCHEM-Redox is in this mode, regardless of the Redox reading. See section 7. -
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 miniCHEM-Redox 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: Terminal Connections
Page 11 3.4 Terminal Connections Note: The power connections detailed below are for normal mains power. Refer to section 11.1 for power wiring details when the 12V DC power option is fitted. Terminal Connection Colour No Connection No Connection Solution Guard Customer-defined. -
Page 12: Setting The Control Limit
Page 12 3.5 Setting the Control Limit The control limit can be set over the full scale of the miniCHEM-Redox, as a “too high” or a “too low” trip point. The hysteresis around this set point can be also be adjusted, if necessary. See section 3.5.3 for an explanation of hysteresis. - Page 13 Turning the HYSTERESIS 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 a 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 14: Selecting Current Or Voltage Output
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. This is a safe place to keep it, in case the miniCHEM-Redox needs to be reset to current output in the future. -
Page 15: Calibrating The 4 To 20Ma Output
TPS has provided calibration controls for the 4mA and 20mA points in case this requires adjustment in the field. Only a limited amount of adjustment is available, as the miniCHEM-Redox is designed for 4 to 20mA output for the full scale of the instrument. -
Page 16: Cmrr Control
The setting of the Factory Config. jumpers is different for 0 to +1000mV and 0 to -1000mV. When the miniCHEM-Redox is factory-set for either of these two ranges, further changes are made inside the unit. DO NOT change these jumpers to change the display range. -
Page 17: Calibration
Page 17 4. Calibration 4.1 Calibration Procedure 1. Switch the miniCHEM-Redox on. Set the function switch to STANDBY, to ensure that the (optional) relay output is not activated when placing the Redox sensor into standards. 2. Connect the Redox sensor and ensure that a solution guard rod is fitted. (see section 3.4). -
Page 18: Process Monitoring
Page 18 5. Process Monitoring Once the miniCHEM-Redox 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 STANDBY. 6. Automatic Dosing For Automatic Alarming or Control, switch the function switch to AUTO to enable the Alarm LED and the (optional) relay output. -
Page 19: Troubleshooting
2. Mains power input Check connections (see section incorrectly connected. 3.4). 3. Instrument is faulty. Return to TPS for repair. Set the Lo/Hi Output jumpers Alarm LED or 1. Limit not set correctly for (optional) relay “too high” or “too low”... -
Page 20: Redox Troubleshooting
Page 20 9.2 Redox Troubleshooting Symptom Possible Causes Remedy Span calibration 1. ATC probe connected. Redox does not require an ATC fails (insufficient probe. The Span range will be range with SPAN reduced if an ATC probe is control). fitted. Ensure that there are no connections to terminals 1 and 2 (see section 3.4). -
Page 21: 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 22 Page 22 Please check that the following is enclosed with your equipment: • Your Name and daytime phone number. • Your company name, ORDER number, and return street address. • A description of the fault. (Please be SPECIFIC.) (Note: "Please Repair" does NOT describe a fault.) Your equipment will be repaired and returned to you by air express where possible.
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Page 23: Appendices
Page 23 11. Appendices 11.1 Terminal connections when 12V DC option is fitted Terminal Connection Colour No Connection No Connection Solution Guard Customer-defined. Green is recommended. No Connection Redox Reference Black Redox Signal Clear +ve of current or voltage output Customer-defined -ve of current or voltage output Customer-defined... -
Page 24: Relay Output Wiring Examples For Mains Powered Units
Page 24 11.2 Relay Output Wiring Examples for mains powered units The diagrams below provide some examples of wiring the (optional) relay output for standard mains powered miniCHEM-Redox units. -
Page 25: Relay Output Wiring Examples For 12V Dc Powered Units
Page 25 11.3 Relay Output Wiring Examples for 12V DC powered units The diagrams below provide some examples of wiring the (optional) relay output for miniCHEM-Redox units with the 12V DC power option. -
Page 26: Drilling Template
Page 26 11.4 Drilling Template The template below is for the three mounting positions for the miniCHEM enclosure. This template is actual size, and can be photocopied or removed as required.
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