6
power switch repeat and frequently. When the tester outputs high-voltage, don’t turn off
the power switch, except in urgent cases can perform this operation.
(
2
)
High-voltage output and ground could not be short-circuit.
The high-voltage test leads of the
tester are strictly prohibited to be short-circuit with the
AC power cord or other electrical equipment connected to the ground. If short circuit
happens, shell of the tester maybe with high-voltage, which can easily result in electric
shock. Ensure protection of ground terminal on the rear panel have a reliable connection
of safety ground. See detailed grounding methods on items 1.8.
(
3
)
Do not use external voltage.
Do not apply the high voltage generated by external device to high-voltage output port.
Because the instrument's internal voltage-meter can not as a separate voltmeter used.
External voltage may damage the voltmeter.
2.Emergency treatment
In case of emergency (electric shock or DUT burning), must take the following two actions
and the two actions must be all completed.
(1) Turn off the power switch;
(2) Unplug the power cord of the instrument.
3.Precautions during testing
3.1 Wear insulated gloves against electric shock
To prevent electric shock accidents in the use of the tester, you should wear insulated
rubber gloves then engage in electricity work.
3.2 Connect the test leads and current measurement port
Connect the test leads in the current measurement end, when the tester is used, in any
case, user must check to see whether this test line is not connected, loose or fall off.
Connect the test leads with the device under test (DUT), be sure to connect DUT to
current measurement terminal then connect DUT to high-voltage terminal. If test leads in
current measurement terminal are not connected well or off-line, it is very dangerous for
the whole DUT maybe filled with high-voltage.