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Microtest 8740 - Page 38

Microtest 8740
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37
[1] O/S Threshold:
Available options include 2K, 5K, 10K, 20K and 100K; other functions are used to determine the short
circuit value. If it is set as 2K, cables with resistance under 2K are considered to be short-circuited and
with resistance above 2K are considered to be open circuit.
[2] Max. Capacitance :
Can be set between 0.05u-5u; this value should be set to a great number when the cables are longer in
order to have stable tests.
[3] IDENTIFY O/S ENDS:
This is able to display the index display for the A Port or B Port short circuit.
[4] SINGLE SIDE SENS:
This act when the cable type is set as unilateral; it is considered short circuit when the test value is
higher than the value set here.
[5] INTER. O/S TIME:
Unlimited when set to 0; the test will only stop when the DUT is removed. When a value is set, it is
the number of seconds to test.
[6] INTER. O/S Scan:
128/256/512 items can be set.
Sets test point upper limit; if set as 128, the test will scan from PIN1 (A01) to PIN128 (B64). To
reduce test time.
[7] SINGLE SIDE MODE:
Sensitivity Sens.: Uses single side test sensitivity as the standard value; when the test value is
greater than the standard value, the test result is FAIL.
Percentage Perc.: Uses the capacitance value learned as the standard value; when the test value is
greater than the percentage range of the standard value, the test result is FAIL.
[8] SINGLE SIDE PER.:
The percentage setting value for the percentage mode of the single side test mode.
[9] Q.INTER. O/S TIME:
Sets test time, 0 is repeat test and the result is determined as PASS when DUT is removed.
[1] QINTER. 0/S Scan:
Sets test point upper limit; if set as 128, the test will scan from PIN1 (A01) to PIN128 (B64). To
reduce test time.
[2] QINTER.Delay:
The capacitance of the DUT itself causes the test to be unstable; increasing the delay time will
increase the test stability.

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