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Extech Instruments RF153 User Manual

Extech Instruments RF153
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15 RF153-en-GB_V1.1 11/18
Manual Measurements
After placing the measurement liquid, press
M to start measuring. The measurement
result will display on the LCD and save to
memory automatically (see Section 5-2). If
ERR is displayed, an error has occurred,
please refer to Section 5-3-2.
Press M
Zero Calibration
Placed distilled or tap water on the prism,
long press M to access the zero function.
Long press M
Perform a zero calibration before each
use.
Temperature of distilled/tap water
should equal ambient temperature.
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Extech Instruments RF153 Specifications

General IconGeneral
BrandExtech Instruments
ModelRF153
CategoryMeasuring Instruments
LanguageEnglish

Summary

Introduction

Features

Lists key features: wide range, Brix/RI display, high resolution, ATC, dual LCD, low power, IP65, auto measurement, memory, sapphire coating.

Applications

Covers use in food/beverage, plants, factories, restaurants, and industrial fluids for sugar concentration.

Safety

Safety Symbols and Disposal

Explains CE, RoHS, REACH, IP65 certifications and battery/device disposal.

Operational Warnings

Details warnings for safe operation: avoid disassembly, handle carefully, avoid magnets, flames, and environmental extremes.

Specifications

Product Descriptions

Meter Description

Identifies and describes physical parts of the meter, including prism cover, prism, buttons, LCD, and battery cover.

LCD Display Description

Explains the icons and segments displayed on the LCD screen, including readings, modes, and status indicators.

Operation

Main Functions (Power On/Off)

Details how to power the meter on/off and initial display behavior.

Measurement Unit Selection

Explains switching between Brix, RI, and temperature units using the UNIT button.

Adding a Sample to the Prism

Provides instructions for applying a sample to the prism surface for measurement.

Replacing a Sample

Describes the procedure for removing a sample and cleaning the prism.

Auto Measurements

Explains how to perform measurements automatically by closing the prism cover.

Manual Measurements

Details how to initiate measurements by pressing the 'M' button.

Zero Calibration

Describes the procedure for zero calibration using distilled or tap water.

Memory and Measurement Modes

Explains switching between measurement and memory modes using the RCL button.

Stored Reading Management

Details how to view, navigate, and clear stored measurement data.

Hi/Lo Alerts

Explains alerts related to temperature and measurement range deviations.

Error Message Interpretation

Describes common error messages and their causes.

Maintenance

Cleaning the Prism

Provides steps for cleaning the prism surface using alcohol and a dust-free cloth.

Cleaning the Housing

Instructions for cleaning the meter's exterior with soap and water.

Maintenance Notes

Important notes like avoiding solvents, removing batteries for storage, and closing the prism cover.

Battery Replacement

Customer Support

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