Kikusui TOS9213S Operation Manual page 89

START
HV ON
TEST
100 ms Rise Time
Output
voltage
PASS
READY
The start voltage is set on the DCW.
FAIL judgement
Example of an DC withstanding voltage test (FAIL)
2.50
DC withstanding voltage testing
If the lower judgement function is off, the test ends with a FAIL judgement when a
current larger than the upper reference is detected. The power is then cut off.
If the lower judgement function is on, the test ends with a FAIL judgement when the
tester detects a current larger than the upper reference or a current smaller than the
lower reference. The power is then cut off.
When lower and upper judgements are made, " ↓ FAIL" and " ↑ FAIL" appear,
respectively, at the top right of the LCD.
At the same time, the FAIL LED lights on the indicator and a buzzer sounds. To can-
cel the FAIL judgement, press the STOP switch (the FAIL judgement is output until
the STOP switch is pressed).
The measurement results are displayed until the STOP switch is pressed.
The FAIL judgement other than that described above is a CONTACT FAIL (" →←
FAIL") judgement that is made when the contact failure is detected while a scanner
is used.
NOTE
• In DC withstanding voltage testing, no lower judgement is made during a voltage
rise time (RISE TIME).
• In DC withstanding voltage testing, an upper judgement is not made until the WAIT
TIME has elapsed to eliminate the effects of a charge current in capacitive DUTs.
TOS9213S/ TOS9213AS
Test Time
Fig.5-13 Timing chart for PASS judgement
DCW DCW
LOWER OFF
NORM
1.0
kV
START
HV ON
TEST
Rise Time
Output
voltage
PASS
READY
FAIL
TIMER ON
3.0
s
mA
DISP
Test Time
IR
5-41