Operation; Meter Power; Low Battery Indication; Automatic Power Off - Extech Instruments MA3010 User Manual

Operation
NOTES: Read and understand all Warning and Caution statements in this operation manual
prior to using this meter.
Meter Power
The meter is powered by two (2) AAA 1.5V batteries (located in compartment on bottom of meter
handle). Press and hold the Power button for > 2 seconds to switch the device ON or OFF.
When the meter switches ON the display shows the battery status (FULL, for example). There is
also a battery status icon displayed on the lower right hand corner of the LCD.
Low battery indication
When the displayed battery icon appears empty or if the power ON battery status message
indicates weak battery power, the batteries should be replaced immediately. Refer to the
battery replacement procedure in the maintenance section.
Automatic Power OFF
The meter switches OFF automatically after a 20 minute period of inactivity (±30 seconds). To
disable the Auto Power OFF feature:

With the meter power OFF, press and hold the Power button for >2 seconds

When the display shows the battery status (FULL, for example), press the backlight
button until the display shows 'AoFF'.

The APO feature is now disabled and the meter will not shut off automatically.

Note that the next time the meter is powered up, the Auto Power OFF function will be
re‐enabled and the user will have to repeat the Auto Power OFF disable instructions to
disable this function when desired.
Backlit LCD
Press the backlight button to switch the LCD backlight ON or OFF. Note that excessive use of the
backlight feature will shorten battery life.
Data Hold
Press the HOLD button with the meter ON to freeze the displayed reading. The HOLD icon will
appear along with the held reading. Press the HOLD button again to release the HOLD feature.
The HOLD icon will switch OFF and the meter will show real time readings.
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