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TPS WP-80 - User Manual

TPS WP-80
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Congratulations !
You have purchased the latest in Handheld pH-mV-Temperature
instrumentation. We trust that your new WP-80 will give you many years
of reliable service.
The WP-80 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 WP-80. It also contains a full listing of all of the items
that you should have received with your WP-80. 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
WP-80, 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.
Model WP-80
pH-mV-Temp. Meter
Version : 3.51
Date : 02/07/2003
Author : MS

Table of Contents

Questions and Answers

  • M
    Mario JonesSep 12, 2025
    What to do if my TPS Measuring Instruments displays OFF and switches off?
    • C
      Christopher FernandezSep 12, 2025
      If your TPS Measuring Instruments displays 'OFF' and switches off, the battery is below 5.00 volts. Recharge the battery. If this doesn't solve the issue, check the charger. If the charger is working correctly, replace the battery.
  • P
    Patricia ArmstrongSep 12, 2025
    Why are the readings unstable on my TPS Measuring Instruments?
    • T
      thomasmichaelSep 12, 2025
      Unstable readings on your TPS Measuring Instruments can be caused by several factors: * Electrolyte chamber needs refilling: Refill with saturated KCl filling solution. * Reference junction blocked: Clean the reference junction as per instructions supplied with the electrode. * Glass bulb not clean: Clean the glass bulb as per instructions supplied with the electrode. * Bubble in glass bulb: Flick the electrode to remove the bubble. * Faulty connection to meter: Check connectors and replace if necessary. * Reference junction not immersed: Ensure that the bulb AND the reference junction are fully immersed. * KCl crystals around reference junction, inside the electrolyte chamber: Rinse electrolyte chamber with warm distilled water until dissolved. Replace electrolyte.
  • J
    john34Sep 9, 2025
    How to fix a TPS Measuring Instruments battery that does not charge?
    • T
      troybowmanSep 9, 2025
      If the battery of your TPS Measuring Instruments isn't charging when connected to the charger: 1. Connect the charger and switch the power on. 2. Display the battery volts in the battery saver menu. 3. If the battery volts are increasing then the charger is OK. If the battery volts do not increase, then the charger is faulty. 4. Replace the charger or the battery, as required.
  • A
    Anita BrownSep 8, 2025
    Why is there a flashing symbol on my TPS Measuring Instruments?
    • D
      dustindavisSep 8, 2025
      If you see a flashing symbol on your TPS Measuring Instruments, it means the battery is below 5.60 volts. Recharge the battery. Note that the unit will switch itself off when the battery falls below 5.00 volts.
  • A
    Antonio WalkerAug 23, 2025
    What to do if my TPS Measuring Instruments meter will not turn on?
    • A
      Alexandra WrightAug 23, 2025
      If your meter doesn't turn on, the battery may be exhausted. Try recharging it. If that doesn't work, check the charger. If the charger is working, replace the battery.
  • A
    Angela BrownSep 6, 2025
    What causes Memory Failed Calibration Lost then: Initialized MUST ReCalibrate error on TPS Measuring Instruments?
    • B
      bturnerSep 6, 2025
      If you see 'Memory Failed Calibration Lost then: Initialized MUST ReCalibrate', it means user calibration settings have been lost or corrupted. Re-calibrate the instrument. A full 2-point calibration will be required for pH and a 1 point calibration for temperature.
  • E
    ellisamandaSep 5, 2025
    What to do if 1 Point calibration fails (Asymmetry is greater than +/- 1.00 pH) on TPS Measuring Instruments?
    • L
      Lorraine WhiteSep 5, 2025
      If a 1 Point calibration fails with asymmetry greater than +/- 1.00 pH, it could be due to a blocked reference junction or contaminated reference electrolyte. Clean the reference junction as per the instructions supplied with the sensor. Flush with distilled water and replace the electrolyte.
  • A
    andradebarrySep 4, 2025
    Why does my TPS WP-80 Measuring Instruments display 7.00 for all solutions?
    • K
      Kirk ClarkSep 4, 2025
      A display of 7.00 for all solutions indicates an electrical short in the connector. Check the connector and replace it if necessary. If the problem continues, replace the sensor.
  • B
    Brandi ClarkSep 3, 2025
    What does it mean if my TPS WP-80 is showing flashing symbol?
    • R
      Ryan TuckerSep 3, 2025
      A flashing symbol indicates that the battery is below 5.60 volts. Recharge the battery. The unit will switch itself off when the battery falls below 5.00 volts.
  • D
    Daniel OwensSep 2, 2025
    Why does my TPS WP-80 display 4-5 pH for all solutions?
    • C
      Christina LozanoSep 2, 2025
      A display of 4-5 pH for all solutions suggests that the glass bulb or internal stem is cracked. Replace the sensor.

Summary

Introduction

WP-80 Display and Controls

Details the display and physical controls of the WP-80 instrument.

Specifications

Provides detailed technical specifications for the WP-80, including ranges, resolution, and accuracy.

WP-80 Menu Structure

Operating Modes

Selecting pH, mV or Relative mV Mode

Explains how to select between pH, mV, and Relative mV operating modes on the WP-80.

pH Calibration

Calibration Procedure

Step-by-step guide for performing a pH calibration on the WP-80 instrument.

Calibration Notes

Provides important notes and considerations for performing accurate pH calibrations on the WP-80.

Relative mV Calibration

Temperature Calibration

Calibration Procedure

Step-by-step guide for calibrating the temperature measurement function of the WP-80.

Calibration Notes

Calibration Messages

Good Laboratory Practices (GLP)

Failed Calibration

Describes the GLP function's behavior when a calibration fails and how it affects stored data.

Notepad Function

Recording Readings into the Notepad

Recalling Records from the Notepad

Printing Records from the Notepad to the RS232 Port

Automatic Datalogging

RS232 Port

Setting the Baud Rate

Sending Readings to the RS232 Port

Selecting Buffers for Auto Buffer Recognition

Initialising the WP-80

Troubleshooting

General Errors

Lists common error messages, their possible causes, and remedies for the WP-80.

pH and mV Troubleshooting

Addresses specific troubleshooting steps for pH and mV measurement issues with the WP-80.

Temperature Troubleshooting

Provides troubleshooting guidance for temperature-related inaccuracies or calibration failures on the WP-80.

Appendices

Checking the reference junction of a pH electrode.

Determining if an instrument or electrode is faulty

Provides a diagnostic test to help determine if the WP-80 instrument or its electrode is faulty.

TPS WP-80 Specifications

General IconGeneral
Accuracy±0.05% + 1 digit
Resolution0.1 RPM (2.5-999.9 RPM); 1 RPM (1000-99, 999 RPM)
Power Supply9V battery
DisplayLCD
Operating Temperature0 to 50°C

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