Operating Instructions - Extech Instruments 42510A User Manual

Operating Instructions

Temperature Measurements
Laser Pointer
Backlight
Over-range Indication
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1. Hold the meter by its handle and point it toward the surface to be measured.
2. Pull and hold the trigger to turn the meter on and begin testing. The temperature reading will
change as the user scans various targets.
3. The 'SCAN' icon remains on until the user releases the trigger.
4. When the trigger is released, the reading will hold for approximately 7 seconds (HOLD will
replace SCAN on the LCD) after which the meter will automatically shut off. The only exception
to this is if the LOCK mode is set to ON.
The Laser pointer optimizes the user's aim during scanning. To turn the Laser on/off:
1. Press and release the Trigger
2. While HOLD is on the display, press the laser button
3. The laser icon will appear in the LCD when the Laser is on.
4. The status of the Laser is remembered by the meter and will remain as the ON condition until
changed.
1. Press and release the trigger
2. While HOLD is on the display, press the backlight button
3. The backlight will illuminate the LCD when the feature is enabled.
4. The status of the backlight will be stored in memory and will remain as the ON condition until
changed.
5. Note: The backlight will shorten the battery life; use sparingly and only as necessary.
If the temperature measurement exceeds the specified temperature range, the thermometer will
display dashes in place of a temperature reading.
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once to turn the Laser on or off.
once to turn the backlight on or off.
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