TPS WP-Sim User manual

Congratulations !
The WP-Sim is a complete pH, ORP, Conductivity, TDS and
Temperature simulator for TPS instruments. The WP-Sim provides an
indispensable tool for checking the operation of instruments without
sending them to the factory for service.
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 WP-Sim. It also contains a full listing of all of the items
that you should have received with your WP-Sim. 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 for
operation of the WP-Sim.

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TPS Pty Ltd
ABN 30 009 773 371
4 Jamberoo Street
Springwood, Brisbane,
Australia, 4127
Phone : [phone]
International : 61 732 900 400
Fax : [phone]
International : 61 7 3808 4871
Email : [email protected]
Web : www.tps.com.au
Model WP-Sim
Multi-Function Simulator
Version : 1.0
Date : 12/12/2002
Author : MS

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Contents
1. Introduction...................................................................................................4
1.1 WP-Sim Illustration.............................................................................................4
1.2 Unpacking Information........................................................................................6
1.3 Specifications .....................................................................................................7
2. Simulating pH Values...................................................................................8
3. Simulating Millivolt Values..........................................................................9
4. Simulating Conductivity and TDS Values................................................10
5. Simulating Temperature Values................................................................11
6. Simulating pH, ORP & Temperature for Pool Controllers......................12
7. Impedance Test for pH...............................................................................14
8. Testing the WP-Sim Battery......................................................................16
9. Changing the WP-Sim Battery ..................................................................17
10. Warranty ......................................................................................................18

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1. Introduction
1.1 WP-Sim Illustration

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pH / mV Output Selector
Used to select one of a range of pH and Millivolt values. The Function
switch must be set to ON or Impedance for the pH/mV output to be
active. See sections 2and 3.
Conductivity / TDS Output Selector
Used to select one of a range of Conductivity and TDS values. The
values are simulated by a precision resistor network, so the Function
switch can be left in the OFF position for these tests. See section 4.
Function Switch
Used to select ON / OFF, Impedance (section 7) or Battery Test
(section 8).
pH / mV Output Connector
All pH and Millivolt signals are output through this connector.
Conductivity / TDS / Temperature Output Connector
All Conductivity, TDS and Temperature signals are output through
this connector.

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1.2 Unpacking Information
Before using your new WP-Sim, please check that the following
accessories have been included: Part No
1. WP-Sim Multi Function Simulator..............................................130126
2. pH / mV Output Cable with BNC plug........................................130131
3. 9V Battery...................................................................................130026
(The battery is inside the unit.)
4. WP-Sim Handbook.....................................................................130050
Output Cables that may have been ordered with your WP-Sim …
1. pH / mV Output Cable with TPS4 plug.......................................130132
2. Conductivity / TDS Output Cable with 5 Pin DIN plug...............130133
3. Conductivity / TDS Output Cable with 6 Pin Waterproof plug ...130134
4. Conductivity / TDS Output Cable with 7 Pin Waterproof plug ...130135
5. Conductivity / TDS Output Cable with 9 Pin Waterproof plug ...130136
6. pH PLUS mV Output Cable for Pool Controllers........................130137
Options …
1. Aluminium Carry Case................................................................130059

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1.3 Specifications
Simulated Values Accuracy
pH 2.00 pH
4.00 pH
7.00 pH
10.00 pH
12.00 pH
±0.03 pH
Millivolts 650 mV ±2 mV
Conductivity
0,100 uS/cm
1,000 uS/cm
01,10 mS/cm
0,100 mS/cm
±5%
TDS 01,000 ppM
10,000 ppM ±5%
Temperature
Current temperature
inside WP-Sim unit. Can be up to
±10 OC offset
All output values (other than Temperature) are simulated for 25 OC.
Power .................................................9V Alkaline Battery for 100+ hours
of continuous operation.
Dimensions........................................187 x 110 x 51 mm
Mass ...................................................Approx 200g
Environment......................................Temperature :0 to 45 OC
Humidity :0 to 90 % R.H.

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2. Simulating pH Values
1. Obtain the correct pH / mV output cable for the instrument under test.
2. Connect one end of the pH / mV output cable to the WP-Sim and the
other end to the instrument under test, as per the example diagram
below…
3. Switch the WP-Sim Function switch to ON. Switch the instrument
under test on and select pH mode. See the instrument’s handbook if
necessary.
4. Use the pH / mV selector to output any of the 5 simulated pH values.
The readout of the instrument under test should approximately
correspond to the simulated pH value selected on the WP-Sim.
Variations are possible due to the current temperature and calibration
settings of the instrument under test.
Please note that the simulated values are for 25 OC.

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3. Simulating Millivolt Values
1. Obtain the correct pH / mV output cable for the instrument under test.
2. Connect one end of the pH / mV output cable to the WP-Sim and the
other end to the instrument under test, as per the example diagram
below…
3. Switch the WP-Sim Function switch to ON. Switch the instrument
under test on and select Millivolt mode. See the instrument’s
handbook if necessary.
4. Switch the pH / mV selector to 650 mV. The readout of the instrument
under test should be approximately 650 mV. Variations are possible
due to the current calibration settings of the instrument under test.

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4. Simulating Conductivity and TDS Values
1. Obtain the correct Conductivity / TDS output cable for the instrument
under test.
2. Connect one end of the Conductivity / TDS output cable to the
WP-Sim and the other end to the instrument under test, as per the
example diagram below…
3. The WP-Sim does not need to be switched on for Conductivity or
TDS output. Switch the instrument under test on and select
Conductivity or TDS mode as required. See the instrument’s
handbook if necessary.
4. Use the Conductivity / TDS selector to output any of the 4 simulated
Conductivity or 2 simulated TDS values. The readout of the
instrument under test should approximately correspond to the
simulated Conductivity or TDS value selected on the WP-Sim.
Variations are possible due to the current temperature and calibration
settings of the instrument under test.
Please note that the simulated values are for 25 OC.

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5. Simulating Temperature Values
1. Obtain the correct Conductivity / TDS / Temp output cable for the
instrument under test.
2. Connect one end of the Conductivity / TDS /Temp output cable to the
WP-Sim and the other end to the instrument under test, as per the
example diagram below…
3. The WP-Sim does not need to be switched on for Temperature
output. Switch the instrument under test on and select Temperature
mode. See the instrument’s handbook if necessary.
4. The output will correspond to the current temperature inside the
WP-Sim. Variations are possible due to the calibration settings of the
instrument under test.

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6. Simulating pH, ORP & Temperature for Pool Controllers
This section is applicable to combination pH and ORP pool
controllers, such as the poolCHEM series, easyCHEM 770 and
easyCHEM 660.
1. Obtain the correct Pool Controller output cable for the instrument
under test.
2. Each end of the cable is labelled as the WP-Sim or Pool Controller
end. Connect the cable to the WP-Sim and the pool controller
correctly, as per the example diagram below…
3. Switch the WP-Sim Function switch to ON. Switch the instrument
under test on.
Continued over the page…

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4. Switch the pH / mV selector to your choice of pH or mV value. The
readout of the instrument under test should approximately
correspond to the simulated values selected on the WP-Sim. In
addition, the pool controller will display the current temperature inside
the WP-Sim. Variations are possible due to the current calibration
settings of the instrument under test.
Note : As the WP-Sim is simultaneously outputting pH and mV
values, you will notice that BOTH readings on the display change
when the pH / mV selector is changed. Please disregard the pH
values when the WP-Sim is set to 650 mV, and disregard the mV
reading when the WP-Sim is set to a pH value.

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7. Impedance Test for pH
Testing a pH meter with simulated pH values only checks for the
accuracy of the input circuit. It does not check for the impedance of the
input circuit. The input impedance must be extremely high to match the
pH sensor. If the input impedance has been reduced due to component
failure, corrosion etc, accuracy will be affected and the pH sensor may
suffer permanent damage.
To test the impedance of the pH meter’s input circuit…
1. Obtain the correct pH / mV output cable for the instrument under test.
2. Connect one end of the pH / mV output cable to the WP-Sim and the
other end to the instrument under test, as per the example diagram
below…
3. Switch the WP-Sim Function switch to ON. Switch the instrument
under test on and select pH mode. See the instrument’s handbook if
necessary.

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4. Use the pH / mV selector to output any of the 5 simulated pH values.
The readout of the instrument under test should approximately
correspond to the simulated pH value selected on the WP-Sim.
Variations are possible due to the current temperature and calibration
settings of the instrument under test.
Please note that the simulated values are for 25 OC.
5. Make a note of the reading obtained on the display.
6. Now switch the WP-Sim Function switch to Impedance.
The pH value on the instrument’s display should change by less than
0.05pH if it’s input impedance is high enough. If the display changes
by more than this amount, the instrument must be returned for repair.

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8. Testing the WP-Sim Battery
The WP-Sim is equipped with a Battery Test function. To check the
battery, set the Function switch to Battery Test. The red light on the front
panel will glow brightly if the battery is OK. If the light is very dim or does
not operate at all, the battery must be replaced.

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9. Changing the WP-Sim Battery
1. Turn the instrument over and locate the 6 Instrument Case Screws
on the rear. See the diagram below.
2. Remove all 6 screws and open the WP-Sim.
CAUTION : THERE ARE WIRES THAT CONNECT THE CIRCUIT
BOARD TO THE CONNECTORS. TAKE CARE WHEN OPENING
THE METER TO ENSURE THESE WIRES ARE NOT BROKEN.
Do not lose the nylon washers, as these form a part of the waterproof
seal when the screws are replaced.
3. Replace the battery with a new alkaline 9V battery.
4. Re-fit the rear of the WP-Sim and replace the Instrument Case
Screws.

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10. Warranty
TPS Pty. Ltd. guarantees all instruments and sensors to be free from
defects in material and workmanship when subjected to normal use and
service. This guarantee is expressly limited to the servicing and/or
adjustment of an instrument returned to the Factory, or Authorised
Service Station, freight prepaid, within twelve (12) months from the date
of delivery, and to the repairing, replacing, or adjusting of parts which
upon inspection are found to be defective. Warranty period on sensors is
three (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.
Shipping damage is not covered by this warranty.
Please note
A guarantee card is packed with the instrument or sensor. This card must
be completed at the time of purchase and the registration section
returned to TPS Pty. Ltd. within 7 days. No claims will be recognised
without the original guarantee card or other proof of purchase. This
warranty becomes invalid if modifications or repairs are attempted by
unauthorised persons, or the serial number is missing.
Procedure for service
If you feel that this equipment is in need of repair, please re-read the
manual. Sometimes, instruments are received for "repair" in perfect
working order. This can occur where batteries simply require replacement
or re-charging, or where the sensor simply requires cleaning or
replacement.
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.

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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. It is your responsibility as the sender to
ensure that TPS receives the unit.
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.
For out-of-warranty units, a repair cost will be calculated from parts and
labour costs. If payment is not received for the additional charges within
30 days, or if you decline to have the equipment repaired, the complete
unit will be returned to you freight paid, not repaired. For full-account
customers, the repair charges will be debited to your account.
•Always describe the fault in writing.
•Always return the sensors with the meter.