EXTECH MA3110 [6/15] Operation

MA3110-en-GB_V1.0 12/16

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) 1.5V ‘AAA’ batteries. The battery compartment is located on the

back of the meter. Press the Power button

to switch the device ON or OFF.

Low battery indication

When the low battery icon appears ( ) the batteries should be replaced immediately,

although in-specification measurements can still be made temporarily. When the low battery

icon begins blinking, in-specification measurements are no longer supported and batteries must

be replaced before further measurements can be made. Refer to the battery replacement

procedure in the maintenance section.

Automatic Power OFF

The meter switches OFF automatically after a 15-minute period of inactivity. To disable the Auto

Power OFF feature:

 With the meter power OFF, press and hold the Mode (M) button while powering the

meter ON.

 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

enabled again and the user will have to repeat the Auto Power OFF disable instructions

to disable this function when desired.

Data Hold

Press the H (HOLD) button with the meter ON to freeze the displayed reading. The H icon will

appear along with the held reading. Press the H (HOLD) button again to release the HOLD feature.

The H icon will switch OFF and the meter will show real time readings.