Extech Extech 42500-NIST 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.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX [phone] - TestEquipmentDepot.com

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

Range / Resolution -4 to 500
Accuracy ± 2% of reading or ± 4oF (2oC) whichever is greater, from 60

to 113
± 3% of reading or ± 6

remainder of range: -4 to 500

o

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

o

F (15 to 50oC)

o

F (3oC) whichever is greater, for

o

F (-20 to 260oC)

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)

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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Model 42500 Version 1.4 March 2006 2

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