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8
Chapter 2 Precautions on Handling
This chapter describes the precautions to be followed in the handling of this tester. When using the
tester, take utmost care to ensure safety.
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WARNING: The tester generates a 5kVAC or 6kVDC test high voltage, incorrect or wrong
operation can cause accidents which will result in human injury or death. When operating the tester,
be extremely careful and observe the cautions, warnings, and other instructions given in this chapter,
keeping them in mind to avoid accidents.
2.1
Operation Standards
1)
Wearing Insulation Gloves
When handling the tester, be sure to wear insulation gloves in order to protect yourself against
high voltages, even then, please do not touch the live conductor by hand when high voltage test is
conducting.
2)
Grounding
There is a protective grounding terminal on the rear panel of the tester chassis, so
unless the tester is reliably grounded by the PE pin on the power connector, please
use a dedicated tool to connect it to an electrical ground (safety ground, protective
earth). If there is no good grounding, when the output circuit is shorted to the
ground or any device’s power line is shorted to the ground, the tester chassis is
charged to an excessively high voltage, resulting in extreme danger of electric
shock to anyone who touches such tester chassis; therefore, please make sure that
the protective grounding terminal is connected to safety ground.
3)
Test Line Connection
Press
[STOP]
first, confirm that DANGER lamp is not lit, then connect the test line. When
connecting the test lead wire to a DUT, please connect the DUT with the test lead wire of HV2
or RTN/LOW first. It is very dangerous if the test line connection of HV2 or RTN/Low is
incomplete or dropped, because the entire DUT will be charged with high voltage.
After the high voltage plug of the high voltage test lead is inserted into HV1 and HV2, it must
be rotated 90 degrees clockwise to lock it.
Before testing, it is a must to check whether the test lead wire of HV1 and HV2 or RTN/LOW are
connected, loose or could fall off.
4)
Stop (Pause) Test
To change the test conditions, please press the
[STOP]
key 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 accidental contact with
the start switch causing a safety hazard.
5)
Remote Control
Be very careful when operating the tester in remote control mode, because the start and stop of
Safe ground
