Extech Instruments 42510 Manual de usuario

User’s Manual

Wide Range Mini InfraRed Thermometer

with Laser Pointer

MODEL 42510

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.

Model 42510 Version 3.3 March 20062

Warranty

EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship

for three (3) years from date of shipment (a six month limited warranty applies on sensors and cables). If it should

become necessary to return the instrument for service during or beyond the warranty period, contact the Customer

Service Department at (781) 890-7440 ext. 210 for authorization or visit our website at www.extech.com (click on

‘Contact Extech’ and go to ‘Service Department’ to request an RA number). A Return Authorization (RA) number must

be issued before any product is returned to Extech. The sender is responsible for shipping charges, freight, insurance

and proper packaging to prevent damage in transit. This warrantydoes not apply to defects resulting from action ofthe

user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or

unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for a

specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total

liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other

warranty, whether written or oral,is expressed or implied.

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 -58 to 200ºF (-50 to 200ºC)

200°F to 1000°F (200ºC to 538°C)

0.1º

1°

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

113oF (15 to 50oC)

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

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

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. 8:1 ratio (D = distance; S = spot)

Laser power Less than 1mW

Spectral response 6 to 14 µm (wavelength)

General Specifications

Display Backlit LCD display with function indicators

Display update rate 1 second approx.

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

Operating Humidity Max. 80% RH.

Power Supply 9V battery

Automatic Power Off Meter shuts off automatically after 6 seconds

Weight 6.4 oz. / 180g

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

Model 42510 Version 3.3 March 20063

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 1000°F (538°C), 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.

1”

2”

Distance to Ob

ect

Diameter of Spot

Laser Beam

4”

4” 8” 16” 32”

0.5”

Sensor Beam

0.63”

Model 42510 Version 3.3 March 20064



Support line (781) 890-7440

Technical support: Extension 200; E-mail: [email protected]m

Repair & Returns: Extension 210; E-mail: [email protected]

Product specifications subject to change without notice

For the latest version of this User’s Guide, Software updates, and other

up-to-the-minute product information, visit our website: www.extech.com

Extech Instruments Corporation, 285 Bear Hill Rd., Waltham, MA 02451

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.

Calibration and Repair Services

Extech offers repair and calibration services for the products we sell. Extech also

provides NIST certification for most products. Call the Customer Service Department for

information on calibration services available for this product. Extech recommends that

annual calibrations be performed to verify meter performance and accuracy.

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