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Also when the tester is in other malfunctioning states than the above, there is a
possibility that the output voltage is delivered irrespective of your proper operating
procedure. Never use the tester when it has failed.
！
WARNING
Keep the tester away from other people until you call our service
engineer for help.
Immediately call your Sourcetronic agent. It is hazardous for an unqualified person
to attempt to troubleshoot any tester problem.
2.6 Ensuring 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
specified 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
Ambient
temperature
Upper current
Pause Time
Output time
T≤40°C
AC
>20mA
(ST9201/S)
>12mA
(ST9201B/C)
At least as long as
the output time
Maximum of 1
minute
<10mA
(ST9201/S)
<6mA
(ST9201B/C)
Not necessary
Continuous
output
possible
DC
>6mA(ST9201/S)
>3m (ST9201B/C)
At least as long as
the output time
Maximum of 1
minute
<5mA (ST9201/B)
<2mA(ST9201B/C)
At least as long as
the judgment wait
time (WAIT TIME)
Continuous
output
possible
(Output time = voltage rise time + test time + voltage fall time)
2.7 Daily Checking
To avoid accidents, confirm at least the following before starting operation:
1. The input source complies with the standard and the tester power configuration
is correct.
2. The tester is connected to an earth ground.
