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Extech Instruments EX470A User Manual

Extech Instruments EX470A
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USER MANUAL
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True RMS Multimeter plus IR Thermometer
Extech EX470A
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Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
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Extech Instruments EX470A Specifications

General IconGeneral
BrandExtech Instruments
ModelEX470A
CategoryMultimeter
LanguageEnglish

Summary

Introduction

International Safety Symbols

Symbols used in the manual for safety information and their meanings.

CAUTIONS

Laser Pointer Safety

Precautions regarding the laser pointer to avoid eye exposure and potential hazards.

OVERVOLTAGE CATEGORY III

SAFETY INSTRUCTIONS

Rules for safe operation of the multimeter, including maximum input limits.

Description

Symbols and Annunciators

Explanation of various symbols and annunciators displayed on the multimeter's screen.

Operating Instructions

DC VOLTAGE MEASUREMENTS

Step-by-step guide for measuring DC voltage using the multimeter.

AC VOLTAGE MEASUREMENTS

DC CURRENT MEASUREMENTS

Steps for measuring DC current, including selecting the correct range and jacks.

AC CURRENT MEASUREMENTS

RESISTANCE MEASUREMENTS

Procedure for measuring electrical resistance, including safety precautions.

CONTINUITY CHECK

DIODE TEST

Procedure for testing diodes, including expected voltage readings.

CONTACT TEMPERATURE MEASUREMENTS

NON-CONTACT TEMPERATURE MEASUREMENTS

Procedure for measuring temperature using the IR sensor.

CAPACITANCE MEASUREMENTS

FREQUENCY MEASUREMENTS

Procedure for measuring electrical frequency.

AUTORANGING/MANUAL RANGE SELECTION

RELATIVE MODE

Using the relative measurement feature to compare readings.

DISPLAY BACKLIGHT

HOLD FUNCTION

How to freeze the reading on the display.

AUTO POWER OFF

LOW BATTERY INDICATION

Indicator for low battery voltage.

WRONG CONNECTION INDICATION

Specifications

Maintenance

Battery Replacement

Instructions for replacing the battery.

REPLACING THE FUSES

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