10
Operation Methods
1. Power supply
This instrument provides two power sources for test:
AC220V/DC12V. 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, 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.
3) Charge
Connect to AC220V power supply, "charging" indicator lights
indicating the rechargeable battery is charging. If rechargeable battery’s
power is sufficient, "full" indicator will light. When using AC power to
test, the instrument also can charge up the battery. (Instrument
equipped with charging protection circuit will not produce
overcharging phenomenon.)