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Extech Instruments PH220 User Manual

Extech Instruments PH220
9 pages
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USER MANUAL
Waterproof Palm pH Meter
Model PH220

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Extech Instruments PH220 Specifications

General IconGeneral
pH Range0.00 to 14.00 pH
pH Resolution0.01 pH
ATCYes
Data HoldYes
Temperature Resolution0.1°C
DisplayLCD
Probe TypepH electrode
Temperature Accuracy±1°C
Power SupplyFour AAA batteries

Summary

Introduction

Specifications

Details the technical specifications, ranges, and accuracy of the pH meter.

Meter Description

Basic Display Description

Explains the components and readings shown on the meter's LCD screen.

Calibration (pH)

pH Calibration Procedure

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

'CAL' Reminder Display

Describes the indicator for when the meter needs recalibration.

Measuring pH

Automatic Temperature Compensation (ATC)

Explains how the meter automatically adjusts readings based on temperature.

Automatic Power OFF

Details the auto power-off feature for battery conservation.

Storing and Recalling Readings

STORE Readings

Instructions on how to save measurement data to the meter's memory.

RECALL Readings

Guide on how to retrieve previously stored measurement readings.

ERASE (Clear) Readings

Procedure for deleting all stored measurement data from the meter.

Temperature Offset Adjustment

Battery Replacement

Electrode Maintenance and Troubleshooting

Electrode Storage

Guidelines for proper storage of the pH electrode to maintain performance.

Electrode Cleaning

Methods for cleaning the pH electrode to ensure accurate measurements.

Electrode Troubleshooting

Common electrode issues and their recommended solutions for the pH meter.

Two-year Warranty

Calibration and Repair Services

Contact Customer Support

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