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Press and hold the
SELECT
button while turning the meter on to
temporarily disable the Auto-Power-Off (APO) feature. Turn the
rotary switch OFF and then back on to resume.
Auto-Power-Off (APO)
The Auto-Power-Off (APO) mode turns the meter off automatically
to extend battery life after approximately 34 minutes of no rotary
switch or push button operations. To wake up the meter from APO,
press the
SELECT
button momentarily and release or turn the
rotary switch OFF and then back on. Always turn the rotary switch
to the OFF position when the meter is not in use.
Disabling Auto-Power-Off
MAINTENANCE
To avoid electrical shock, disconnect the meter from any circuit,
remove the test leads from the input jacks and turn OFF the meter
before opening the case. Do not operate with open case.
WARNING
If the instrument fails to operate, check batteries and test leads
etc., and replace as necessary. Double check operating procedure
as described in this user's manual.
Trouble Shooting
If the instrument voltage-resistance input terminal has subjected to
high voltage transient (caused by lightning or switching surge to
the system under test) by accident or abnormal conditions of
operation, the protective impedance components in series might be
- 25 -
Press the
SELECT
button for 1 second or more to toggle the LCD
backlight. The backlight will also be turned off automatically after
32 seconds to extend battery life.
Relative-Zero (∆) mode
Backlighted LCD display
Relative-Zero allows the user to offset the meter consecutive
measurements with the main display displaying reading as the
reference value. Press the
REL
button momentarily and release to
toggle Relative-Zero mode.
Press the
RANGE
button momentarily and release to select manual-
ranging, and the meter will remain in the range it was in, the LCD
AUTO
turns off. Press the button again to step through the ranges.
Press and hold the button for 1 second or more and release to
resume auto-ranging.
Manual or Auto-ranging
Note: manual-ranging feature is not available in
Hz
and function
ranges.
Press the
RANGE
button while turning the meter on to temporarily
disable the Beeper feature. Turn the rotary switch OFF and then
back on to resume.
Set Beeper Off
