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9
2.3
Precautions in Testing
■
Wearing Insulation Gloves
When handling the tester, be sure to wear insulation gloves in order to protect yourself against
high voltages, even though, it is forbidden to touch the live conductor by hand when high voltage
test is conducting.
■
Stop (Pause) Test
To change the test conditions, please press the STOP once first, this will take the tester out of
the test preparation state and ensure that the DANGER lamp is off. If need to take a break or
leave the test location, please switch off the power, to prevent the accidental contact with the
start switch and cause a safety hazard.
■
Charged Items During High Voltage Testing
During the test, the high voltage output terminals, the high voltage test lead wires, the high
voltage probes, the DUT, and the conductors exposed to them are all charged with dangerous high
voltage power. Do not approach or touch these conductors during testing.
！
Warning
:
Do not touch the alligator clip on the test line. When the instrument is in the
test state, the rubber skin on the alligator clip is not insulated enough; it is very dangerous
to touch it!
■
Precautions after switching off the high voltage output
If you have to touch the DUT, test leads, probes or output terminals and surrounding areas for
reconnection or other reasons, make sure the following two points:
(a)
Confirm that the operating status displayed by the instrument is not the test status.
(b)
The DANGER light is off.
■
Remote Control Warning
Be very careful when operating the tester in remote control mode, because the start and stop of
high voltage is remote controlled, the operator can not know the actual working state of the tester
through the interface.
Please pay special attention to the reliability of remote control
connection:
1.
「
STOP
」
key, must be connected reliably,
「
STOP
」
key must be pressed before changing the
DUT.
2.
When working in a crowded work environment, the remote control switch must have a
interlock
「
INTLOCK
」
and
the
high
voltage
indicator.
Disconnect
the
interlock
「
INTLOCK
」
before changing the DUT.
The protection method ensures that the DUT, the test leads, the probe, the output, and the
surrounding area are never touched when the test voltage is output.
2.4
High Voltage Test Warning
！
Warning
:
In high voltage testing, test lead wires, probes and DUT are all charged with high
voltage. The tester is equipped with a discharge circuit, but some time it still requires to discharge
after the output is cut off. There is a danger of electric shock during discharge. To avoid electric
shock, make sure that the DUT, the test leads, the probe, and the output terminal with high voltage
do not touch anything other than the test component. If you may be exposed to these, make sure the
