11
the instrument at terminals V +, V, after amplification, the display
will show the resistance value using four and a half bits LCD digital.
VII. Operation Methods
1. Power supply
This instrument provides two power sources for test:
AC220V/DC14.8V. In the case of strong electromagnetic
interference, the best choice is use the DC power supply for test. At
this state the instrument can get stable tested value with strong
anti-frequency interference ability.
1) DC power supply test:
Closed power switch, power indicator will light. Press
“start/stop” buttons, then select appropriate resistance gear switch
to do the test. Finished testing, press “start/stop” button,
"discharge" indicator lights (if the stored electricity of tested object
is little, the "discharge" indicator does not light), after discharge,
"discharge" indicator goes out, and then convert the test clip for
re-test.
2) AC power supply test:
Connect to AC 220V power supply, its indicator lights
("charging" indicator or "full" indicator); closed the power switch,
power indicator lights, and press the "start/stop" button, then select
appropriate resistance gear switch to do the test. Finished testing,
