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6.6 PASS or FAIL Determination
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6.6.3 "FAIL" State
WARNING
Even when a test has been terminated, there may still be voltage in the
output-voltage terminal. Before touching the output-voltage terminal,
H.V. TEST LEAD, or tested object, make sure that no high voltage is
being applied to the output, confirm the following items.
(1) The analog voltmeter reads 0 kV.
(2) The
DANGER
lamp is OFF.
(3) The
READY
lamp is lit (it is off in the Double Action mode).
UPPER FAIL
The measured current or measured resistance has
exceeded the upper-limit value.
LOWER FAIL
The measured current or measured resistance has
dropped below the lower-limit value.
If the measured voltage deviates from the upper or lower value during the test, the unit
switches to the FAIL state and immediately stops outputting a voltage. The FAIL state
can be divided into UPPER FAIL and LOWER FAIL states.
During the insulation-resistance test, if the output voltage doesn't reach a level between 5%
lower and 50% higher than the set test voltage value, screening will not be performed.
When performing a withstand-voltage test:
If the output voltage doesn't reach the set test voltage value ± 5% or if the
voltage deviates from the set voltage value during the test and doesn't return to
the set value ± 1 dgt. within 5 seconds , FAIL will result.
UPPER
,
LOWER
or
FAIL
will light.
When performing an insulation-resistance test:
If the test time has elapsed without the output voltage reaching a level between
5% lower and 50% higher than the set test voltage value or if the voltage
deviates largely from the set voltage value, FAIL will result. UPPER, LOWER
or FAIL will light.
UPPER
,
LOWER
or
FAIL
will light.
Optional Functions
The FAIL state is held using the FAIL Hold function. (See Section 7.2)
During the hold state, the result of the terminated test can be displayed using the
/ keys.
Flow of FAIL determination
1. Press the
START
key to start a test.
2. The test set by the program file is conducted in each step.
3. When the measured current or measured resistance values deviate from the preset test
settings, the unit stops outputting a voltage and switches to the FAIL state.
FAIL
lights up in the FAIL state together with
LOWER
or
UPPER
.
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