Precautions before Use and Installation
3-3
Figure 3-3 Do Not Touch Here During High Voltage Output
<<< Warning! When the output is cut off >>>
8. Ensure the test is done
Sometimes users might need to touch the high voltage objects such as UUT, high voltage
test cable or output terminal etc. due to configuration or test required change. In that case,
please ensure the power has been turned off.
9. Remote controlling the Tester
The Tester can be remote controlled generally for high voltage output via external control
signal. When performing it, it is necessary to follow the control guidelines for safety and
precautions.
• Do not allow any accidental high voltage output that may cause hazard.
• When there is high voltage output from the Tester, do not allow any operator
or other personnel to touch the UUT, test cable or probe output and etc.
Caution
10. Turning on or off the power switch
Once the power switch is turned off, it needs to wait for a few seconds to turn it on again.
Do not power it on and off continuously to avoid occurring errors. It is very dangerous to
power it on and off continuously when in high voltage output state in particular. When
turning on or off the power, the high voltage output terminal cannot connect to any
object to avoid the hazard caused by abnormal high voltage output.
11. Other notices
Do not short-circuit the output line, grounding wire, communication cable or other
device’s grounding wire or AC power to avoid charging the entire Tester to dangerous
voltage. To short-circuit the high voltage output of HV(-) (red concave terminal) and HV(+)
(BNC terminal), it is necessary to ground the Tester chassis to earth properly first.
<<< Emergency Case >>>
12. Process for emergency case
To avoid causing bigger hazard when in emergency situations like electric shock, UUT or
Tester burnout, please perform the steps below:
• First cutoff the power switch.
• Second unplug the power cord.
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