Extech Instruments 42510 User manual

User’s Manual

Wide Range Mini InfraRed Thermometer

with Laser Pointer

MODEL 42510

42510-EU-EN v3.5 07/13

Introduction

Congratulations on your purchase of the Model 42510 IR Thermometer. This thermometer

measures and displays non-contact (infrared) temperature readings at the touch of a button. The

built-in laser pointer increases target accuracy while the backlit LCD and handy push-buttons

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

Range / Resolution -50 to 200ºC (-58 to 200ºF)

200ºC to 538°C (200°F to 1000°F)

0.1º

1°

Accuracy ± 1% of reading or ±1oC (1.8oF) whichever is greater, from 15 to 50oC (60

to 113oF)

± 2% of reading or ±2oC (4oF) whichever is greater, for remainder of

range: -50 to 537oC (-58 to 1000oF)

Note: Accuracy is specified for the following ambient temperature range:

18 to 28°C (64 to 82°F)

Emissivity 0.95 fixed value

Field of View D/S = Approx. 8:1 ratio (D = distance; S = spot)

Laser power Less than 1mW

Spectral response 6 to 14 m (wavelength)

General Specifications

Display Backlit LCD display with function indicators

Display update rate 1 second approx.

Operating Temperature 0ºC to 50ºC (32ºF to 122ºF)

Operating Humidity Max. 80% RH.

Power Supply 9V battery

Automatic Power Off Meter shuts off automatically after 6 seconds

Weight 180g / 6.4 oz.

Dimensions 82 x 42 x 160mm (3.2 x 1.6 x 6.3”)

42510-EU-EN v3.5 07/13

Meter Description

1. Laser pointer beam

2. IR Sensor

3. Measurement trigger

4. Battery compartment cover

5. Handle grip

6. LCD Display

7. Function Buttons

Operating Instructions

1. Hold the meter by its Handle Grip and point it toward the surface to be measured.

2. Pull and hold the orange Trigger to turn the meter on and begin testing. The temperature

reading, the ‘SCAN’ icon, the emissivity icon (E=0.95), and the unit of measure will appear.

Note: Replace the battery if the display does not light.

3. While continuing to pull the Trigger:

a. Push the laser button to turn on the laser pointer. When the laser is ON the laser icon

will appear on the LCD over the temperature reading. Aim the red beam approximately a half

inch above the point of test (pressing the laser button again turns the laser off).

b. Select the temperature units using the oCor oFbutton.

c. Push the backlight button to turn on the LCD backlighting function.

4. Release the Trigger and the reading will hold for approximately 6 seconds (HOLD will appear on

the LCD) and then the meter will automatically shut off.

Over-range Indicator

If the temperature measurement exceeds 538°C (1000°F), the thermometer will display dashes in

place of a temperature reading.

Field of View

The meter’s field of view is 8:1. For example, if the meter is 16 inches from the target (spot), the

diameter of the target must be at least 2 inches. Other distance ratios are shown below in the field

of view diagram.

Note that measurements should normally be made less than 2 feet from the target. The meter can

measure from further distances but the measurement may be affected by external sources of light.

In addition, the spot size may be so large that it encompasses surface areas not intended to be

measured.

20mm

@ 160mm 40mm

@ 320mm 80mm

@ 640mm

42510-EU-EN v3.5 07/13

Measurement Notes

1. The object under test should be larger than the spot (target) size calculated by the field of view

diagram.

2. If the surface of the object under test is covered with frost, oil, grime, etc., clean before taking

measurements.

3. If an object's surface is highly reflective, apply masking tape or flat black paint to the surface

before measuring.

4. The meter may not make accurate measurements through transparent surfaces such as glass.

5. Steam, dust, smoke, etc. can obscure measurements.

6. The meter compensates for deviations in ambient temperature. It can, however, take up to 30

minutes for the meter to adjust to extremely wide ambient temperature changes.

7. To find a hot spot, aim the meter outside the area of interest then scan across (in an up and

down motion) until the hot spot is located.

Battery Replacement

When the low battery symbol appears on the lower left side of the display, replace

the meter’s battery (9V). The battery compartment is located behind the light green

panel that surrounds the meter’s trigger (see diagram). Open the compartment by

pulling the light green panel down from the trigger area. Replace the 9V battery and

close the battery compartment cover.

You, as the end user, are legally bound (EU Battery ordinance) to return all used

batteries, disposal in the household garbage is prohibited! You can hand over your

used batteries / accumulators at collection points in your community or wherever batteries

/ accumulators are sold!

Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the

end of its lifecycle

Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform

ISO‐9001Certified

www.extech.com

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