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wtw inoLab pH 720 User Manual

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wtw inoLab pH 720 Specifications

General IconGeneral
Measurement Range pH-2.00 to 20.00 pH
Resolution pH0.01 pH
Accuracy pH±0.01 pH
Measurement Range mV-2000 to 2000 mV
Measurement Range Temperature-5.0 to 105.0 °C
Resolution Temperature0.1 °C
Accuracy Temperature± 0.1 °C
DisplayLCD
Protection classIP 54
InterfaceUSB
Power Supply4 x AA batteries
Memory1000 data sets
Resolution mV0.1 mV

Summary

1 Overview of the inoLab pH 720

1.1 Keyboard Functions

Details the functions of the instrument's keypad and its buttons.

1.2 Display Elements

Explains the different elements shown on the instrument's display, such as status and measured values.

1.3 Instrument Sockets

Identifies the connectors for pH electrode, temperature probe, and power supply.

2 Safety Instructions

2.1 Authorized Use

Specifies the intended laboratory use of the instrument and unauthorized applications.

2.2 General Safety Guidelines

Provides essential safety guidelines for operating the instrument and handling chemicals.

3 Commissioning the Instrument

3.1 Scope of Delivery

Lists the items included in the instrument package, such as the meter and manual.

3.2 Initial Setup

Outlines the steps for setting up the instrument for first use, including temperature units.

4 Instrument Operation

4.1 Powering On

Instructions for powering on the pH meter and preparing it for use.

4.2 Measurement Preparation

Describes the process and preparatory steps for taking measurements.

Temperature Probe Usage

Explains the use and automatic recognition of temperature probes.

4.2.1 pH Measurement

Detailed steps for performing pH measurements with the instrument.

AutoRead Function (Drift Control)

Details the AutoRead function for stabilizing pH measurements.

4.2.2 Redox Voltage Measurement

Instructions for measuring Redox voltage using a Redox electrode.

4.3 Electrode Calibration

Explains why and when to calibrate, and the calibration procedures.

Calibration Procedures Overview

Overview of different calibration methods: AutoCal TEC, AutoCal DIN, ConCal.

AutoCal TEC Calibration Steps

Step-by-step guide for AutoCal TEC calibration using WTW buffers.

AutoCal DIN Calibration Steps

Step-by-step guide for AutoCal DIN calibration using DIN buffers.

ConCal Calibration Steps

Step-by-step guide for ConCal calibration using selectable buffers.

Single-Point Calibration

Instructions for rapid single-point calibration.

Calibration Evaluation

Explains how the instrument evaluates calibration results.

4.4 Instrument Reset

Instructions for resetting the instrument to factory default settings.

5 Maintenance, Cleaning, and Disposal

5.1 Instrument Maintenance

Details the battery replacement procedure for the instrument.

5.2 Cleaning Procedure

Provides guidelines for cleaning the instrument's housing.

5.3 Proper Disposal

Instructions for the proper disposal of the instrument and its batteries.

6 Troubleshooting Guide

Common Error Messages

Lists common error messages (OFL, E3) and their solutions.

No Stable Measurement

Troubleshooting steps for when the instrument shows unstable readings.

Low Battery Indicator (LoBat)

Explains the 'LoBat' error and necessary battery replacement.

Incorrect Measurement Values

Troubleshooting for inaccurate readings and measurement procedure issues.

Unresponsive Controls and Software Version

Solutions for unresponsive controls and checking software version.

7 Technical Specifications

Ambient Conditions

Specifies operating and storage temperature and relative humidity limits.

Measurement Ranges and Resolution

Lists the measurement ranges and display resolution for pH, mV, and temperature.

Accuracy Details

Details the accuracy of pH, mV, and temperature measurements.

Physical Dimensions and Weight

Provides physical specifications of the instrument.

Power Supply and Runtime

Information on batteries, runtime, and optional power supply.

Compliance and Test Marks

Lists EMC, instrument safety, and climatic class compliance.

FCC Class A Statement

Statement regarding compliance with FCC rules for digital devices.

8 Document Lists

Abbreviations List

Explains abbreviations used in the manual and on the display.

Glossary of Terms

Defines technical terms and concepts used in the manual.

Index

Provides an alphabetical list of topics for quick reference.

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