17
2.
Be sure to use same testing position after short calibration.
Auto Power Off/ Disable Auto Power Off
When the meter has not been used for five minutes after the last
operation was made, a long “beep” tone will sound. The meter will then
automatically enter a “sleep” mode and there will be no display on the
LCD. To reactivate the meter, simply press any pushbutton. After re-
activating.
When the meter is to be used for long period, the auto power-off can be
disabled by pressing and holding “
L/C/R
” button while turning meter
ON. Release the button, and press any button again. The
symbol
will be disappeared to confirm that the auto power off has been disabled.
By using a 12V AC adaptor as an optional power source, auto power off
is disabled automatically.
Note: It is recommended that the meter should always be switched off
when not in use.
Low Battery Indication
When the “
“ symbol flashes on the display, the battery voltage is
below normal working voltage and is weakening. Replace battery with a
new one to maintain accuracy of the meter.
Backlit Display
(Model-A only)
Press and hold
“ “
key for more than one second to toggle backlit
ON/OFF.
