Extech Instruments 42512 User Manual download pdf (Page 4)

42512-en-GB_V7.3 11/14

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. The only exception to this is if the

LOCK mode is set to ON.

Note: Select the temperature units (ºF/ºC) using the switch inside the battery compartment

Dual Laser Pointer

The dual laser pointers are designed to cross at a distance of

75cm. The spot size at this distance is a 2.5cm diameter and this

is the recommended distance to target 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 on the lasers on or off.

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.

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Extech Instruments 42512 User Manual Page 4