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TPS pH Cube - User Manual

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Congratulations !
You have purchased the latest in benchtop pH-ORP-Temperature
instrumentation. We trust that your new pH Cube will give you many years of
reliable service.
The pH Cube 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 pH Cube. It also contains a full listing of all of the items that you should
have received with your pH Cube. 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 pH Cube,
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.
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
Fax : (07) 3808 4871
International : 61 7 3808 4871
Email : tps@tps.com.au
Web : www.tps.com.au
Model pH Cube
pH-ORP-Temp.
Meter
Handbook Version : 1.3
Date : 12-Dec-11

Other manuals for TPS pH Cube

Questions and Answers

  • K
    Krystal CrossSep 9, 2025
    What to do if asymmetry calibration fails on my TPS Laboratory Equipment?
    • Z
      zbradySep 9, 2025
      If asymmetry calibration fails on your TPS Laboratory Equipment with Calibrate control in pH6.88 or pH7.00 buffer (asymmetry is greater than +/-1.00 pH), it may be due to a blocked reference junction or contaminated reference electrolyte. Clean the reference by immersing the probe in hot water (60°C) for a few minutes. Proteins can be cleaned off using a pepsin solution. If you are using a refillable sensor, replace the electrolyte.
  • R
    Robert YatesAug 23, 2025
    What to do if my TPS pH Cube give inaccurate readings, even after successful calibration?
    • T
      Timothy HigginsAug 23, 2025
      If you are getting inaccurate readings from your TPS Measuring Instruments after calibration, the reference junction might be blocked. Try cleaning the reference junction by immersing the probe in hot water (60°C) for a few minutes.
  • N
    Nathan SanchezAug 25, 2025
    How to fix slope calibration failure on TPS pH Cube Measuring Instruments?
    • S
      Sarah BishopAug 25, 2025
      A failed slope calibration (less than 85.0%) on your TPS Measuring Instruments can be due to: * A dirty glass bulb: Clean the glass bulb as per the instructions supplied with the sensor. * An aged sensor: Attempt rejuvenation as per the instructions supplied with the sensor. If not successful, replace the sensor. * A damp connector: Dry it in a warm place. * Inaccurate buffers: Replace the buffers.
  • M
    matthewlyonsAug 27, 2025
    What to do if asymmetry calibration fails on my TPS pH Cube?
    • D
      David PatelAug 27, 2025
      If asymmetry calibration fails on your TPS Measuring Instruments (asymmetry is greater than +/-1.00 pH), it could be due to: * A blocked reference junction: Clean the reference by immersing the probe in hot water (60°C) for a few minutes. Proteins can be cleaned off using a pepsin solution. * Contaminated reference electrolyte: Replace the electrolyte if using a refillable sensor.
  • T
    Tina ClarkAug 27, 2025
    Why temperature readings do not vary on TPS Measuring Instruments?
    • J
      John CaseyAug 28, 2025
      If the temperature readings on your TPS Measuring Instruments do not vary and the Manual Temp control is active even when the temperature sensor is plugged in, it could be due to: * A faulty connector: Check the connector and replace it if necessary. * An incorrect temperature sensor. * A faulty temperature sensor: Fit a new temperature sensor, part number 121245.
  • J
    Jasmine MunozAug 29, 2025
    What does “-1” mean on my TPS pH Cube Measuring Instruments in temperature mode?
    • J
      Jamie LopezAug 29, 2025
      If your TPS Measuring Instruments reads “-1” in Temperature mode, the temperature sensor may be connected but faulty. Check the temperature sensor connector and replace it if necessary. If the problem persists, replace the temperature sensor (part no 121245).
  • Y
    yorkjennySep 18, 2025
    How to troubleshoot "-1 " reading in Temperature mode on TPS Laboratory Equipment?
    • J
      Jason PerezSep 18, 2025
      If your TPS Laboratory Equipment reads “-1 ” in Temperature mode, it indicates that the temperature sensor is connected but faulty. Check the temperature sensor connector and replace it if necessary. If the problem persists, replace the temperature sensor (part no 121245).
  • G
    garrettcooperSep 18, 2025
    What does “-1. " mean on my TPS Laboratory Equipment?
    • W
      wadebrittanySep 22, 2025
      If your TPS Laboratory Equipment displays “-1. " as a reading, it means the pH reading is over-ranged. This can be due to the pH sensor not being connected or being faulty. Replace the sensor if necessary.
  • T
    Timothy ThompsonSep 8, 2025
    Why is my TPS Laboratory Equipment giving inaccurate readings even after successful calibration?
    • R
      Robert AtkinsonSep 8, 2025
      Inaccurate readings on your TPS Laboratory Equipment, even after successful calibration, can be caused by a blocked reference junction. Clean the reference junction by immersing the probe in hot water (60°C) for a few minutes to resolve this.
  • T
    Terri BassSep 4, 2025
    Why is my TPS Laboratory Equipment showing unstable readings?
    • D
      David BerrySep 5, 2025
      Unstable readings in your TPS Laboratory Equipment can occur due to several reasons: a blocked reference junction, a dirty glass bulb, a bubble in the glass bulb, a faulty connection to the meter, the reference junction not being immersed, or KCl crystals around the reference junction inside the electrolyte chamber. To resolve this, try the following: * Clean the reference junction as per the instructions supplied with the sensor. * Clean the glass bulb as per the instructions supplied with the sensor. * Flick the sensor to remove any bubble. * Check the connectors and replace if necessary. * Ensure that both the bulb AND the reference junction are fully immersed. * Rinse the electrolyte chamber with warm distilled water until dissolved.

Summary

Introduction to the pH Cube Instrument

pH Cube Front Panel and Controls

Details the display and control buttons on the instrument's front panel.

pH Cube Side Panel and Connectors

Describes the various connectors located on the side of the pH Cube instrument.

Unpacking Information for pH Cube

Lists accessories that should be included with the pH Cube upon purchase.

Technical Specifications of the pH Cube

Outlines the technical specifications, ranges, and accuracy of the pH Cube meter.

Operating Modes of the pH Cube

Overview of Operating Modes

Explains the three distinct operating modes: pH, ORP/mV, and Temperature.

pH Calibration Procedures

pH Calibration Procedure

Step-by-step guide for calibrating the pH sensor using buffer solutions.

pH Calibration Notes and Frequency

Provides important considerations and frequency recommendations for pH calibration.

ORP;mV Calibration

ORP;mV Calibration Status

States that the ORP/mV section is factory calibrated with no user adjustment.

Temperature Calibration and Setting

Temperature Calibration Procedure

Details the process for calibrating the temperature sensor against a reference thermometer.

Temperature Calibration Notes

Information regarding recalibration frequency for the temperature sensor.

Manual Temperature Setting

Explains how to manually input the sample temperature for compensation.

Troubleshooting Guide for pH Cube

pH and ORP;mV Troubleshooting

Lists common symptoms, causes, and remedies for pH and ORP/mV measurement issues.

Temperature Troubleshooting

Provides solutions for common problems encountered with temperature readings.

Appendices and Technical Details

pH Buffer Values vs. Temperature Table

A table showing pH buffer values at different temperatures for calibration.

pH Sensor Fundamentals

Explains the basic principles and components of a pH sensor.

pH Sensor Asymmetry Explained

Defines and illustrates pH sensor asymmetry and its effect on measurements.

pH Sensor Slope Explained

Explains the concept of pH sensor slope and its relation to ideal performance.

Temperature Compensation in pH Sensing

Details how temperature affects pH sensor slope and compensation methods.

Product Warranty and Service Information

Warranty Terms and Conditions

Outlines the terms, conditions, and duration of the product warranty.

TPS pH Cube Specifications

General IconGeneral
BrandTPS
ModelpH Cube
CategoryMeasuring Instruments
LanguageEnglish

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