TPS proCHEM-C User manual

Congratulations !
Your new proCHEM-Ccontroller is the latest in simple, reliable process
control instrumentation. With correct operation and maintenance, your
proCHEM-Cwill give you many years of reliable service.
The proCHEM-Cis 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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TPS Pty Ltd
ABN 30 009 773 371
4 Jamberoo Street
Springwood, Brisbane,
Australia, 4127
Phone : [phone]
International : 61 7 32 900 400
Fax : [phone]
International : 61 7 3808 4871
Email : [e-mail]
Web : www.tps.com.au

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Contents
1. Introduction ..............................................................................................4
1.1 proCHEM-C Illustration .......................................................................4
1.2 Unpacking Information ........................................................................6
1.3 Specifications......................................................................................7
2. Operating Modes ......................................................................................8
3. Installation and Set-up.............................................................................9
3.1 Connection and Configuration Diagram...............................................9
3.2 Mounting the Enclosure.....................................................................10
3.3 Mounting the Sensor .........................................................................11
3.4 Terminal Connections .......................................................................12
3.5 Setting the Control Limit....................................................................15
3.6 Selecting Current or Voltage Output..................................................18
3.7 Calibrating the 4 to 20mA Output ......................................................19
4. Calibration...............................................................................................21
4.1 Calibration Procedure........................................................................21
4.2 Calibration Notes...............................................................................22
5. Process Monitoring................................................................................23
6. Automatic Control ..................................................................................23
7. Fuse Replacement..................................................................................23
8. Troubleshooting.....................................................................................25
8.1 Instrument Function Troubleshooting.................................................25
8.2 Conductivity Troubleshooting............................................................26
9. Warranty..................................................................................................28
10. Appendices .........................................................................................30
10.1 Re-setting the Display Range............................................................30
10.2 Care, Cleaning and Maintenance of Conductivity Electrodes.............32
10.3 Power Terminal connections when 12V DC option is fitted ................34
10.4 Relay Output Wiring Examples for mains powered units ...................35
10.5 Relay Output Wiring Examples for 12V DC powered units.................36

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1. Introduction
1.1 proCHEM-C Illustration

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Set Upper Limit Control
Adjust this control to the Conductivity 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. Factory-set to light up when the reading is above
the Upper Limit. See section 3.5.
Set Lower Limit Control
Adjust this control to the Conductivity value at which the Low LED
and relay output are activated. Factory-set to activate when the
reading is below the Lower Limit. See section 3.5.
Low LED
The Low LED provides visual indication of when the Lower Limit has
been exceeded. Factory-set to light up when the reading is below
the Lower Limit. See section 3.5.
Zero Calibrate Control
Adjust this control to calibrate the proCHEM-Cwith the sensor dry
and in air. See section 4.
Span Calibrate Control
Adjust this control to calibrate the proCHEM-Cin a Conductivity
standard. See section 4.
Function Switch
The Function Switch is used to select the mode of operation. See
section 2.
Display Window
The proCHEM-Chas 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,
relay output fuses, configuration jumpers and user-adjustable
trimmers. The cover is water resistant to IP65.

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1.2 Unpacking Information
Before using your new proCHEM-C, please check that the following
accessories have been included: Part No
1. proCHEM-CProcess Controller..............................................111122
2. proCHEM-CHandbook...........................................................130050
3. 200mL of Conductivity standard to suit specified range.
Options that may have been ordered with your proCHEM-C:
Sensor options…
1. k=0.1, GK Series Conductivity sensor, 5m..............................112205
2. k=1.0, GK Series Conductivity sensor, 5m..............................112206
3. k=10, GK Series Conductivity sensor, 5m...............................112207
4. Extra cable for Conductivity sensors (order by the metre).......130040
Instrument options…
1. 4-20mA loop-powered, remote LCD........................................130080
2. 12V DC Power Option.............................................................130072

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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 ....................................................................0.05% of full scale
Accuracy.........................................................±0.2% of full scale at 25 OC
Linearity......................................................................±0.05% of full scale
Repeatability...............................................................±0.05% of full scale
Ambient Drift........................................................................... <0.02% / oC
Long term drift...................................................................<0.1% per year
Temperature Compensation................................Automatic, 0 to 100.0 oC
Zero Range ........................................................................................±5%
Span Range ............................................................................70 to 130%
Sensors....................................Platinised Platinum, k=0.1, k=1.0 or k=10
Enclosure ............................................Polycarbonate, waterproof to IP65
Display................................. 12.7 mm LCD (optional remote 4-20mA loop
powered display available)
Analogue Outputs............... 4 to 20mA (500 Ohms max. loop resistance )
0 to 1 V DC (min. load 1000 Ω)
0 to 10 V DC optional (min. load 1000 Ω)
Control Outputs.............................. 2 x Clean contact changeover relays,
rated to 2A at 240V AC
Isolation.................................................Galvanic isolation of sensor input
Power........................................... 240V AC, 50/60Hz (120V AC optional)
Dimensions................................................................215 x 190 x 115 mm
Mass.........................................................Instrument only :Approx 900g
Full Kit :Approx 1.5kg
Operating Environment:............................Temperature :0 to 45 oC
Humidity :0 to 95 % R.H.

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2. Operating Modes
The function switch is used to select the required mode. The four
operating modes available are…
1. Set Upper Limit :Switch to Set Upper Limit when setting the
Conductivity value at which the High LED and
relay output are activated. The relay output is
not operational in this mode.
Factory-set to activate when the reading is
above the Upper Limit. Can be user set to be a
activate when the reading is below the Upper
Limit. See section 3.5.
2. Set Lower Limit :Switch to Set Lower Limit when setting the
Conductivity value at which the Low LED and
relay output are activated. The relay output is
not operational in this mode.
Factory-set to activate when the reading is
below the Lower Limit. Can be user set to be a
activate when the reading is above the Lower
Limit. See section 3.5.
3. Calibrate :Switch to Calibrate mode to place the
proCHEM-Cinto standby (eg. when
calibrating). This mode disables the two output
relays to avoid chemicals being added when
placing the sensor into calibration buffers.
4. Automatic Control :Switch to Automatic Control to enable the
Alarm LED’s and relay outputs. These will be
activated when the Conductivity is outside the
Upper and Lower limit values. See section 3.5.

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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.

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3.2 Mounting the Enclosure
The proCHEM-Ccan 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. The
dimensions for the mounting screw centres are provided on the rear of
the enclosure, and are also illustrated below…