USER'S MANUAL PD-185
4 OPERATING INSTRUCTIONS
4.1 Auto power off
1. The meter will automatically shut off if the Function/Range
switch position is not changed within 30 minutes.
2. The auto power off mode is activated with an "APO" symbol
indicating on LCD.
3. After auto power off, press any button on DMM (except
HOLD button), or change range position of the rotary knob
to turn the DMM back on again.
4. Disable auto power off, set the DMM to off position, press
any button (except the HOLD button) on DMM, and hold the
button while turning the rotary knob to the desired range
position. Release the button when LCD displays normally.
Note "APO" annunciator is missing form the LCD.
4.2 Input warning beeper
The Input Warning Beeper is a feature to protect the meter and you
from unintentional misuse. If the DMM is set to measure a voltage
while the test leads are plugged into a current jack, very high current
could result when the test lead tips are placed to the voltage test
point.
This feature warns you that the test lead needs to be changed from
a current jack to the voltage jack.
All current ranges are fused with fast acting ceramic fuses as an
added protection.
11/2015
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