Amprobe ACD-50NAV ACD-51NAV ACDC-52NAV ACD-53NAV ACD-54NAV Navigator-Clamps - Manual (Page 10)

4
Auto Power Off
After idle 15 min
The meter can work again by turning it on from the OFF position.
Auto Power Off (APO) disable : Press “Downward” of Navigator key while
tuning meter on from OFF position.
Navigator Key
RIGHT LEFT
DOWN
UP
ENTER
The Navigator Key has 5 directions of switch on the display, toggle the
navigator key to select the desired feature to activate the feature by a
simple click.
Making Basic Measurements
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CAUTION
Before and after hazardous voltage measurements, test the voltage
function on a known source such as line voltage to determine proper meter
functioning.
When connecting the test leads to the EUT (Equipment Under Test) connect
the common test lead before connecting the live lead; when removing the
test leads, remove the test live lead before removing the common test lead.