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Extech Instruments 42512 User Manual

Extech Instruments 42512
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User Manual
Dual Laser InfraRed (IR) Thermometer
MODEL 42512
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Extech Instruments 42512 Specifications

General IconGeneral
TypeInfrared Thermometer
Resolution0.1°F/°C
Response Time500 ms
DisplayBacklit LCD
Power Source9V battery
Distance to Spot Ratio12:1
Laser PointerYes
Emissivity0.1 to 1.0 adjustable
Battery Life12 hours

Summary

Introduction

Warranty

Safety

Laser Safety Caution

Warning regarding laser radiation, do not stare into beam and diode laser specifications.

Meter Description

Physical Meter Components

Identifies key physical parts of the IR thermometer, including pointers, display, trigger, and compartment.

Display Indicators and Icons

Explains the meaning of various indicators, icons, and readings shown on the LCD display.

Operating Instructions

Temperature Measurements

Instructions on how to hold the meter, pull the trigger, and interpret readings during temperature measurement.

Dual Laser Pointer Operation

Details on how the dual laser pointers work, their convergence, and how to turn them on/off.

Backlight Control

How to turn the LCD backlight on/off, its memory function, and battery consumption.

Mode Button Functions

Explains how to use the MODE button to access Emissivity, Lock, High Alarm, and Low Alarm features.

Alarm Features

Details on the programmable high and low alarm feature, including alerts and setting.

Temperature Unit Selection

Information on how to set temperature units to °F or °C using the battery compartment switch.

Lock and Auto Power Off

Explanation of the LOCK feature disabling auto power off for hands-free use.

Over-range Indication

How the thermometer indicates when a measurement exceeds the specified temperature range.

Battery Replacement

Instructions on how to replace the meter's 9V battery when the low battery symbol appears.

IR Measurement Notes

Field of View Explanation

Explains the meter's field of view (30:1) and how it affects measurement accuracy.

Emissivity and IR Measurement Theory

Specifications

Calibration and Repair Services

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