TOS5051A/5050A 6-11
Chap.6
Test Procedures
6.2 DC Withstanding Voltage Test Procedure
(TOS5051A Only)
Set the required test parameters to test your DUTs. The ranges of test parameters
available with the tester are as follows:
6.2.1 Selecting a DC Test Voltage Range
With the TEST VOLTAGE switch, select a DC test voltage range (5 kV or 2.5 kV).
The DC test mode message will appear, and the TEST VOLTAGE RANGE message
will indicate the test voltage range you have selected.
• Before turning the TEST VOLTAGE switch, be sure that the TEST VOLTAGE
control is at the fully counterclockwise position (“0” position).
• During the TEST-ON period (period that the “TEST” message appears), the TEST
VOLTAGE switch is disabled. During this period, it is possible that the actual
position of the switch does not conform with the TEST VOLTAGE RANGE mes-
sage or the AC/DC test mode message. When the test is terminated, the switch is
enabled and the selected test voltage range and AC/DC mode take effect. Do not
change the TEST VOLTAGE switch during the TEST-ON period.
• Do not let the TEST VOLTAGE switch get caught between two range positions. If
you turn ON the POWER switch while the TEST VOLTAGE switch is caught in
the middle, the test voltage range message shows a blinking “0 kV” to notify that
the setting has not been confirmed (in addition, if the tester is in the middle of
switching between AC and DC, both “AC” and “DC” light up simultaneously).
Because the setting has not been confirmed, “READY” turns off to notify that the
tester is not in the READY status.When changing the TEST VOLTAGE switch,
turn it accurately to a range position.
Test voltage
Criterion for upper
cutoff current
Criterion for lower
cutoff current
Test time
0 kV to 5 kV 0.1 mA to 11 mA 0.1 mA to 11 mA, OFF 0.5 s to 999 s, OFF
NOTE
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