Extech Instruments 42530 Bedienungsanleitung
User’s Manual
High Temperature InfraRed Thermometer
with Laser Pointer
MODEL 42530
Introduction
Congratulations on your purchase of the Model 42530 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 push-
buttons combine for convenient, ergonomic operation. Proper use and care of this meter
will provide years of reliable service.
Model 42530 Version 2.4 11/052
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 warranty does not apply to defects resulting from action of the 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 1000oF (-50 to 538oC) 0.1°C/F<200 / 1oC/F> 200
Accuracy ± 2% of reading or ± 4oF (2oC) 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. 8:1 ratio (D = distance, S = spot)
Laser power Less than 1mW
Spectral response 6 to 14 µm (wavelength)
General Specifications
Display 3½ digit 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 7 seconds
Weight 6.35 oz. / 180g
Size 8.3 x 3.5 x 1.5” (211 x 89 x 38mm)
Model 42530 Version 2.4 11/053
Meter Description
1. LCD Display
2. Function Buttons
3. Handle Grip
4. Laser Pointer
5. IR Sensor
6. Measurement Trigger
7. Battery Compartment
Operating Instructions
1. Hold the meter by its Handle Grip and point it toward the surface to be measured.
2. Pull and hold the red Trigger to turn the meter on and begin testing. The display
will light if the battery is good. Replace the battery if the display does not light.
3. While measuring, the SCAN display icon will appear in the upper left hand corner
of the LCD.
4. While continuing to pull the Trigger:
a. Push the red Laser button to turn on the laser pointer. When the laser is on the
laser icon will appear on the LCD over the temperature. 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 (oC or oF) using the blue oCand oFbuttons.
c. Push the yellow Backlight key to turn on the LCD backlighting function.
5. Release the Trigger and the HOLD display icon will appear on the LCD indicating
that the reading is being held.
6. The meter will automatically power down after approximately 7 seconds after the
trigger is released.
Overrange Indicator
If the temperature being measured exceeds 1000°F (538°C), the thermometer will emit an
audible warning and the OVER icon will be displayed on the LCD.
1
2
3
4
5
6
7
Model 42530 Version 2.4 11/054
Support Hotline (781) 890-7440
Tech support: Ext. 200; Email: support@extech.com
Repair/Returns: Ext. 210; Email: repair@extech.com
Website: www.extech.com
Field of View
The meter’s field of view is 8:1, meaning that if the meter is 8 inches from the target, the
diameter of the object under test must be at least 1 inch. Other distances are shown below
in the field of view diagram. Refer to the chart printed on the meter for more information.
Measurement Notes
1. The object under test should be larger than the spot (target) size calculated by the field
of view diagram (see diagram on previous page or on side of the meter).
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 before
measuring.
4. The meter may not make accurate measurements through transparent surfaces such
as glass.
5. Steam, dust, smoke, etc. can obscure accurate 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 LCD, replace the meter’s 9V battery.
The battery compartment is located on the bottom of the meter's handle. Open the
compartment by sliding the battery compartment cover off in the direction of the arrow.
Replace battery and re-install the battery compartment cover.
Calibration and Repair Services
Extech offers complete repair and calibration services for all of the products we sell. For
periodic calibration, NIST certification or repair of any Extech product, call customer
service for details on services available. Extech recommends that calibration be performed
on an annual basis to ensure calibration integrity.
Copyright ©2005 Extech Instruments Corporation.
All rights reserved including the right of reproduction in whole or in part in any form.
1” 2”
Distance to Ob
j
ect
Diameter of Spot
Laser Beam
4”
4” 8” 16” 32”
0.5”
Sensor Beam
0.63”
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