◇9
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 derivers a 5 kV test voltage which can cause human injury or death.
When operating the tester, be extremely careful and observe the cautions, warnings, and other
instructions given in this chapter.
2.1 Prohibited Operations
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 repeat turning ON/OFF the power switch rapidly. 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 its test voltage–you may do this only in case of emergency.
Do not short the output to the earth ground
Pay attention so that the high test voltage line is not shorted to a nearby AC line or nearby devices (such as
conveyors) which are connected to an earth ground. If it is shorted, the tester chassis can be charged up to
the hazardous high voltage. Be sure to connect the protective grounding terminal of the tester to an earth
line. If this has been securely done, even when the HIGH VOLTAGE terminal is shorted to the LOW
terminal, the tester will not be damaged and its chassis will not be charged up to the high voltage.
Be sure to use a dedicated tool when grounding the protective grounding terminal.
CAUTION: The term "AC line" here means the line on which the tester is operating. That is the line to
whose outlet the AC power cable of the tester is connected. It may be of a commercial AC power line or of
a private-generator AC power line.
Do not apply an External Voltage
Do not apply a voltage from any external device to the output terminals of the tester. The analog voltmeter
on the front panel cannot be used as stand-alone voltmeter. They may be damaged if their output terminals
are subject to an external voltage.
2.2 Action When in Emergency
In case of an emergency (such as electric shock hazard or burning of DUT), take the following actions.
To Next Page
Loading...
