95x Series Operating Manual - May 17, 2022
Page
53
of
155
Firstly, test the lower voltage resistance and capacitance leakage.
Seq 1 Step 1 ACW
Different
breakdown and leakage limits needed, so use ACW
LEVEL: 500.0V 60.0Hz
As required
BREAKDOWN: 5.000mApk
Since the DUT is known to have little leakage this could be set lower
RAMP: 0.02sec
No timing requirement, so set for fast testing
DWELL: 0.10sec
No timing requirement, so set for fast testing
Test 1: INPHS
Test the resistive leakage
Lim:100.0M-
no maxΩ
As required
Test 2: QUAD
Test the capacitive leakage
Lim:26.50M-
no maxΩ
26.5Mohm = 1/(2
π
FC) = the impedance of 100pF at 60Hz
ARC DETECT:4us 10mA
Optional
DISCHARGE: NONE
No need to discharge between this and the next step
ON FAIL: ABORT SEQ
No further test steps if this step fails
Secondly test the high voltage withstand capability.
Seq 1 Step 2 ACW
Could use ACez if arc detection not needed
LEVEL:2000.0V 60.0Hz
As required
BREAKDOWN: 5.000mApk
Since the DUT is known to have little leakage this could be set lower
RAMP: 1.00sec
As required
DWELL: 1.00sec
As required
Test 1: NONE
No leakage testing required
Test 2: NONE
No leakage testing required
ARC DETECT:4us 10mA
Optional
DISCHARGE: FAST
Immediately discharge as this is the last step
ON FAIL: ABORT SEQ
Example 3 -
A 0.033uF 1000Vac capacitor is to be tested against its tolerance (0.033uF ± 5%) and DF (<1%) specifications.
A nominal capacitor at 1000V/60Hz will draw 12.4mArms, so this is within the capabilities of all 95x models so the
capacitor can be tested at its maximum voltage rating.
This is accomplished in a single step as follows
–
Seq 1 Step 1 ACCAP
LEVEL:1000.0V 60.0Hz
As required
BREAKDOWN: 25.00mApk
As required
RAMP: 1.00sec
Slow ramp to better measure breakdown voltage
DWELL: 5.0sec
Optional, could be faster
C: 31.35n-34.65nF
As required
DF: 0.0000-0.0100
As required
ARC DETECT:OFF
Optional
DISCHARGE: FAST
ON FAIL: ABORT SEQ
SPECIFICATIONS
Specifications are valid at the 95x terminals for 1 year at ambient temperatures within ±5C of calibration
tem7perature (add 5% of accuracy specification per C outside of this). All specifications are relative to the
