Kikusui TOS5050A, Руководство по эксплуатации

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6-12 TOS5051A/5050A
6.2.2 Setting the Upper Cutoff Current
This procedure sets the upper cutoff current, the criterion for pass/fail judgment on
the DUT. If the leak current is larger than this limit, the DUT is judged to be FAIL.
• Test time and pause period are limited by setting upper cutoff current. “ON 15s”
of the front panel character shows a maximum test time and “OFF 150s” shows a
minimum pause period. For details, refer to section 10.1, “Basic Performance”
(Page 10-2 ).
Setup procedure
1. Select the upper cutoff current setting mode with the UP/LOW key.
The “UPPER” message will appear and the preset upper limit current will be
indicated on the CURRENT readout.
2. Adjust the preset upper cutoff current value as required, with the or
key.
If you press the SHIFT key at the same time, the adjusting speed is increased
by a factor of ten. The current value is displayed on the CURRENT readout.
Upper cutoff current setting range
0.1 mA to 11 mA
Resolutions and display formats
• The keys are enabled when the tester is in the READY status (status that the
“READY” message appears) and the “KEYLOCK” message is OFF. They are dis-
abled when in the TEST-ON status (status that the “TEST” message appears) or
when the tester is delivering the result of PASS/FAIL judgment (when the “PASS”
message or the “FAIL” message appears).
• Because the upper and lower cutoff currents can be set independently, it is possible
that the latter is set to a value higher than the former. If such setting is used and the
pass/fail judgment function for the lower cutoff current is ON, “mA” (unit of current
measure) blinks and the “READY” message disappears to indicate that such test
condition is not allowed. The READY status resumes and the blinking stops when
the lower cutoff current is set at a value lower than the upper cutoff current or when
the pass/fail judgment function for the lower cutoff current is turned OFF.
• When you turn OFF the POWER switch immediately after you have changed the
cutoff current, no setting value may be stored. Wait for fi ve seconds or more after
the setting change, and then turn OFF the POWER switch.
Upper cutoff current range Basic resolution Display format
0.1 mA to 9.9 mA 0.1 mA X.X mA
10 mA to 11 mA 1 mA XXX mA
NOTE
Maximum test time Minimum pause period
NOTE