Extech Instruments 42510 Bedienungsanleitung
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.
6
7
5
1
2
3
4
1”
2”
Distance to Ob
j
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
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.
Copyright ©2006 Extech Instruments Corporation
All rights reserved including the right of reproduction in whole or in part in any form.
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