Operating Instructions - Extech Instruments 42510A User Manual

Operating Instructions

Temperature Measurements
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.
Laser Pointer
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
off.
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.
Backlight
1. Press and release the trigger
2. While HOLD is on the display, press the backlight button
on or off.
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.
Over-range Indication
If the temperature measurement exceeds the specified temperature range, the
thermometer will display dashes in place of a temperature reading.
once to turn the Laser on or
once to turn the backlight
4 42510A V3.2 9/08