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(10) Auto Power Off (APO)
The APO sign on the LCD panel indicates the meter is working in the Auto Power Off mode. If the meter idles
for more than 30 minutes, the meter automatically turns the power off. When this happens, the state (non-
logic measurement) of the meter is saved, the meter can be turned back on by pressing any switch or
changing the rotary switch. If the meter is Re-Powered by pressing a switch, the LCD displays the saved
state, press the Hold switch to disable the hold state. The meter will alarm 15 seconds before automatically
turning power off , any key press or rotary change will reset Auto-Power-Off.
(11) Disable Auto Power Off
In order to disable auto power off function, power up the meter whilst pressing down any switch other than the
“HOLD” of BLUE switch.
