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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.
WARNING: The tester generates 5 KV high voltage for testing, care must be taken when
operating the instrument and follow the cautions, warnings, and other instructions given in this
chapter.
Keep them in mind to avoid accidents.
2.1
Prohibited Operation Behavior
Please do not turn on/off the power repeatedly.
After turning OFF the power switch, be sure to allow several seconds or more before turning it
ON again. Do not turn on/off power switch repeatedly, if you do this, the protectors of the
tester may not be able to render their protective functions properly. Do not turn OFF the power
switch when the tester is delivering test voltage, you may do this only in case of emergency.
Do not short the output terminal to the earth ground
Be careful not to short-circuit the high-voltage test leads of the instrument with nearby AC
LINE (AC power cord) or other nearby equipment (such as transmission equipment). If it is
shorted, the chassis of the instrument will be filled with dangerous high voltages.
Make sure that the protective ground terminal is connected with the ground wire, by doing so,
even if the HIGH VOLTAGE terminal is short-circuited to the ground, the instrument chassis
will not be charged with high voltage and there is no danger.
Please make sure to connect the protective ground terminal with the ground wire in a correct
and reliable way, for details, please refer to “Chapter 1.5 Grounding”.
_
Note
:
The term "AC LINE" is used herein to refer to the power cord used by the instrument. It is
a wire that connects commercial power or power generated by power generation to the
power supply of the instrument.
Do not connect external voltage to the test terminal
Do not apply a voltage from any external device to the output terminals of the tester. The tester
does not have an external discharge function in the non-discharge state, connecting the output to an
external voltage can damage the instrument.
2.2
Actions When in Emergency
In case of an emergency (such as electric shock hazard or burning of DUT) while the tester’s high
voltage output is not cut off, take the following actions. You may do either (a) or (b) first, but be sure
to do both:
a.
Turn OFF the power switch of the tester.
b.
Unplug the instrument from the power cord receptacle