95x Series Operating Manual - May 17, 2022
Page
90
of
155
During a lead compensation the
RETURN
wire should not be connected to the DUT.
EXAMPLES
Example 1 -
It is required to test that a DUT ground leakage from its chassis is less than 5mArms when line powered. The DC
leakage current is not required to be tested.
It is assumed that the connection is made prior to the start of the test.
This is accomplished in a single step as follows
–
Seq 1 Step 1 ACI
AC RMS leakage required, so use ACI
TIME: 0.10sec
No timing requirement, so perform quickly
Delay: 0.00sec
Already connected, so no delay needed
Lim: 0n-5.000mA
Per the requirement
ARC DETECT:OFF
Not required so disabled
ON FAIL: ABORT SEQ
Example 2 -
The same requirement as in example 1 but both AC and DC leakage currents are to be tested.
This is accomplished in two steps as follows
–
Seq 1 Step 1 ACI
AC RMS leakage required, so use ACI
TIME: 0.10sec
No timing requirement, so perform quickly
Delay: 0.00sec
Already connected, so no delay needed
Lim: 0n-5.000mA
Per the requirement
ARC DETECT:OFF
Not required so disabled
ON FAIL: ABORT SEQ
Seq 1 Step 2 DCI
DC leakage required, so use DCI
TIME: 0.10sec
No timing requirement, so perform quickly
Delay: 0.00sec
Already connected, so no delay needed
Lim: 0n-5.000mA
Per the requirement
ARC DETECT:OFF
Not required so disabled
ON FAIL: ABORT SEQ
Example 3 -
It is required to test that a medical device patient connection has less than 50uArms ground leakage. The test is to
be performed over a 10 second period to ensure that any periodic current is detected.
This is accomplished in a single step as follows
–
Seq 1 Step 1 ACI
AC RMS leakage required, so use ACI
TIME: 10.0sec
Per the timing requirement
Delay: 0.00sec
Already connected, so no delay needed
Lim: 0n-50.00uA
Per the requirement
ARC DETECT:OFF
Not required so disabled
ON FAIL: ABORT SEQ
Example 4 -
It is required to test the leakage current of material sample over a range of voltages. This is to be performed
manually, using an external source of voltage. This could be a DC or AC test, for this example DC is used.
