Meter Power; Automatic Power Off (Apo) - Extech Instruments EX505A User Manual

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Meter Power

The meter is powered by one (1) 9 V battery. The battery compartment is lo-
cated on the back of the meter (under the tilt stand) secured by the two black
Phillips screws.
When the battery power is critically low, the battery icon appears. Replace the
battery when this icon appears. See the Maintenance section for battery re-
placement instructions.

4.1 Automatic Power Off (APO)

To conserve battery life, the meter automatically switches off after approxi-
mately 15 minutes. To turn the meter on again, turn the function switch to the
OFF position and then to the desired function position.
A quick succession of five beeper tones will sound when the meter is ready to
switch off, press a button on the meter (HOLD, for example), to reset the APO
timer.
To disable the APO, follow the steps below.
1. From the OFF position, hold the MODE button and rotate the function
switch to a measurement position.
2. The meter will beep five times, release the MODE button.
3. APO is now disabled (APO icon switches off).
4. When the function switch is turned to the OFF position, APO is again en-
abled (default).
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