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VWR PH20 User Manual

VWR PH20
33 pages
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EN
PH20
pH Tester
Operating manual
European catalogue number:
EU connection: 662-2283
Version: 1.0
Issued: 07.01.2019
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VWR PH20 Specifications

General IconGeneral
TypepH Meter
Measurement Range0.00 to 14.00 pH
Resolution0.01 pH
Accuracy±0.01 pH
Calibration PointsUp to 3 points
DisplayLCD
Temperature Resolution0.1 °C
Temperature Accuracy±0.5 °C
Temperature CompensationAutomatic
Electrode TypeCombination pH electrode
Power Supply4 x 1.5V AAA batteries
Weight180 g

Summary

Legal address of the manufacturer

About this documentation

2.1 Foreword

Introduction to the manual and its importance for proper use.

2.2 Purpose of the document

Explains the manual's objective: operation and maintenance guidance.

2.3 Warranty

Details the product warranty terms, coverage, and limitations.

2.4 Compliance with local laws and other legal regulations

Customer responsibility for obtaining necessary official approvals and authorisations.

2.5 Correctness of content

Information on document accuracy, updates, and user feedback for improvement.

2.6 Layout of this document

Explanation of chapter structure, prerequisites, instructions, and symbols used.

2.7 Further information

Provides product software version and reference for the exact product name.

Safety

3.1 Explanation of safety symbols

Defines DANGER, CAUTION, and NOTE symbols and their meanings.

3.2 Foreseeable misuse

Discusses consequences of disregarding safety precautions and potential misuse.

3.3 Safety instructions

Specific safety warnings regarding electrodes, chemicals, and product handling.

3.4 Intended use

Describes the product's designed purpose for measuring pH in aqueous media.

3.5 Qualified personnel

Specifies requirements for personnel operating and maintaining the product.

Description

4.1 Scope of delivery

Lists the components included in the product package.

4.2 Job description

Highlights the product's features like precision, design, and connectivity.

The product at a glance

5.1 The PH20

Visual overview of the PH20 device and its associated components.

5.2 Display elements

Explanation of various display indicators and their meanings.

5.3 Operating elements

Details the functions of the product's buttons and controls.

5.4 Connections

Describes the BNC connection for electrodes and notes on waterproofness.

Bases for measurement

6.1 pH measurement

Explains the concept of pH and the principles of pH measurement.

6.1.1 Explanation

Detailed explanation of pH value, its scale, and factors affecting measurement.

6.1.2 pH electrode

Introduction to the common types of pH electrodes used.

6.1.3 Design

Describes the internal components and structure of a pH electrode.

6.1.4 Further information

Discusses electrode wear, maintenance, and common causes of malfunction.

6.1.5 Choosing a pH electrode

Guide to selecting the appropriate pH electrode for different applications.

6.1.6 Care and maintenance

Lists recommended cleaning agents for pH glass membranes and general care.

Maintenance

7.1 Operating and maintenance notices

General notices regarding careful handling, storage, and maintenance.

7.2 Battery

Information related to the device's battery, including its indicator.

7.2.1 Battery indicator

Explains how to interpret the battery status displayed on the device.

7.2.2 Changing battery

Step-by-step instructions for safely replacing the device batteries.

7.3 Calibration and adjustment

Introduction to the process of calibrating and adjusting the pH measurement.

7.3.1 pH calibration

Detailed steps and considerations for performing pH calibration.

7.3.1.2 Buffer solutions

Information on preparing and using buffer solutions for calibration.

7.3.1.3 Automatic pH calibration

Procedure for conducting an automatic pH calibration of the product.

7.3.1.4 Manual 1-point pH calibration

Guide for performing a single-point pH calibration.

7.3.1.5 Manual 2-point pH calibration

Guide for performing a two-point pH calibration.

Operation

8.1 Commissioning

Steps and prerequisites for setting up and starting the product.

8.2 Configuration

General information on adapting the product for specific purposes.

8.2.2 Opening the configuration menu

Instructions on how to access the device's configuration menu.

8.2.3 Configuring parameters of the configuration menu

Details on adjusting various parameters within the configuration menu.

8.2.4 Adjustment of the measuring input

How to adjust the product's zero point and gradient for accurate measurements.

Error and system messages

9.1 Error and system messages

Lists display codes, meanings, possible causes, and remedies for errors.

Disposal

10.1 Disposal instructions

Guidelines for proper disposal of the product and its batteries.

Technical data

11.1 Technical specifications

Detailed technical specifications, including measuring range, accuracy, and power supply.

Service

12.1 Online resources

Information on accessing customer service and product details via the VWR website.

12.2 Sales partners

A list of international sales partners with contact information.