Extech 42500 Operating Manual

User’s Manual

Mini InfraRed Thermometer

with Laser Pointer

MODEL 42500

Introduction

Congratulations on your purchase of the Model 42500 IR Thermometer. This thermometer
makes non-contact (infrared) temperature measurements at the touch of a button. The
built-in laser pointer increases target accuracy while the backlit LCD and handy push­buttons combine for convenient, ergonomic operation. Proper use and care of this meter
will provide years of reliable service.

Safety

• Use extreme caution when the laser pointer beam is on

• Do not point the beam toward anyone's eye or allow

the beam to strike the eye from a reflective surface

• Do not use the laser near explosive gases or in other
potentially explosive areas

Specifications

Infrared Thermometer Specifications

o

Range / Resolution -4 to 500

Accuracy ± 3% of reading or ± 6oF (3oC) whichever is greater.

Note: Accuracy is specified for the following ambient
temperature range: 64 to 82°F (18 to 28°C)

Emissivity 0.95 fixed value

Field of View D/S = Approx. 6:1 ratio (D = distance, S = spot)

Laser power Less than 1mW

Spectral response

6 to 14 µm (wavelength)

General Specifications

Display 2000 count, backlit LCD display with function indicators

Display rate 1 second approx.

Operating Temperature 32°F to 122°F (0°C to 50°C)

Operating Humidity Max. 80% RH

Power Supply 9V battery

Automatic Power Off Meter shuts off automatically after 6 seconds

Weight 4.9 oz. / 140g

Dimensions 6.7 x 1.7 x 1.6” (170 x 44 x 40mm)

F (-20 to 260oC) 1oC/F

Meter Description

1. LCD Display

2. Function Buttons

3. Handle Grip

4. IR Sensor

5. Laser pointer beam

6. Measurement Trigger

7. Battery Compartment

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5

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2

3

6

7

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Model 42500 Version 1.2 June 2003