Kikusui TOS9200, Operation Manual

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TOS9200/9201 Precautions on Handling 2-5
2.5 Dangerous States of Failed Tester
Typical possible dangerous states of the tester are as shown below and in which
cases the most dangerous situation that “the high test voltage remains delivered
and won't be turned off!” may occur. When this situation has occurred, immedi-
ately turn OFF the power switch and disconnect the AC power cable from the AC
line receptacle.
• The DANGER lamp does not go out despite you have pressed the
STOP switch.
• The DANGER lamp does not light up despite the pointer of the ana-
log voltmeter is de fl ected indicating that the output voltage is being
delivered.
Also when the tester is in other malfunctioning states than the above, there is a pos-
sibility that the output voltage is delivered irrespective of your proper operating pro-
cedure. Never use the tester when it has failed.
•
Keep the tester away of other people until you call our service engineer for
help.
• Immediately call Kikusui distributor/agent. It is hazardous for an unquali-
fi ed person to attempt to troubleshoot any tester problem.
2.6 To Ensure Long-Term Use Without Failures
The withstanding voltage-generating block of the tester is designed to release half
the rated amount of heat, in consideration of the size, weight, cost, and other factors
of the tester. The tester must therefore be used within the ranges speci fi ed below. If
you deviate from these ranges, the output block may be heated to excess, activating
the internal protection circuit. Should this happen, wait until the temperature
returns to the normal level.
Output requirements for withstanding voltage testing
(Output time = voltage rise time + test time + voltage fall time)
Ambient
temperature
Upper current
Pause Output time
t
≤
40 ˚ C
AC
50< i ≤ 110 mA At least as long as the output time Maximum of 30 minutes
i ≤ 50 mA Not necessary Continuous output possible
DC
5< i ≤ 11 mA At least as long as the output time Maximum of 1 minute
i ≤ 5 mA
At least as long as the judgement
wait time (WAIT TIME)
Continuous output possible
WARNING