Operating Instructions; Temperature Measurements; Dual Laser Pointer - Extech Instruments 42509 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, MAX temperature reading, the 'SCAN' icon, the emissivity value, and the unit
of measure will appear.
3. Release the Trigger and the reading will hold for approximately 7 seconds (HOLD will
appear on the LCD) after which the meter will automatically shut off. If LOCK mode is
enabled, the unit will not automatically shut off.
Note: Select the temperature units (ºF/ºC) using the switch inside the battery
compartment

Dual Laser Pointer

The meter has a distance to target ratio of 12:1. The dual laser
pointers are designed to indicate the 12" distance when the
laser points are 1" apart. The spot size at this distance is a 1"
diameter. This is the recommended distance for most
measurements. To turn the lasers on/off:
1. Press and release the Trigger
2. While HOLD is on the display, press the laser button
once to turn the lasers on or off. The new status will appear
with the next trigger pull.
3. The laser icon will appear in the LCD when the laser
function is enabled.
4. The status of the laser will be stored in memory and will
remain as the "turn-on" condition until changed.
5cm
@61cm
2.5cm
@30cm
1.25cm
@15cm
4
2"
@24"
1"
@12"
0.5"
@6"
42509 V1.0 07/09