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Extech Instruments 42509 - User Manual

Extech Instruments 42509
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User Manual
Dual Laser InfraRed (IR) Thermometer
with Color Alert
MODEL 42509
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Extech Instruments 42509 Specifications

General IconGeneral
TypeInfrared Thermometer
Resolution0.1°F/°C
DisplayBacklit LCD
Power Supply9V battery
Distance to Spot Ratio12:1
Data HoldYes
Min/MaxYes
Laser SightingSingle Laser
EmissivityAdjustable 0.1 to 1.0
Response Time< 500ms

Summary

Dual Laser InfraRed (IR) Thermometer with Color Alert

Introduction

Warranty

Safety Precautions

Meter Description and Display

Operating Instructions

Temperature Measurement

How to measure temperature using the IR thermometer.

Dual Laser Pointer Operation

Guidance on using the dual laser pointers for accurate targeting.

Feature Operations

Backlight and Mode Button Functions

Details on backlight control and accessing Emissivity, Lock, and Alarm features.

Advanced Features and Maintenance

Color Alert and Alarm System

Details on the meter's programmable high and low alarm system.

Temperature Units, Lock, and Over-range

Settings for temperature units, lock feature, and over-range indication.

Battery Replacement

Instructions for replacing the 9V battery.

IR Measurement Notes

Field of View

Explains the meter's distance to target ratio and field of view.

Calibration and Repair Services

Emissivity and IR Measurement Theory

Emissivity Factors for Common Materials

A table listing emissivity values for various common materials.

Specifications

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