62 | ni.com | NI VirtualBench Calibration Procedure
5. Call PS Configure Current Output with the following parameters:
• Channel =
ps/+6V
• Current Level = 0.01 or 0.03, as listed in the first row of the Verification Point
column of Table 22 or 23
• Voltage Limit = 6, as listed in the first row of the Voltage Limit column of
Table 22 or 23
6. Wait for the DC power supply to settle. The VB-8012 requires at least 60 seconds of settling
time. The VB-8034/8054 requires at least 5 seconds of settling time.
7. Measure the output voltage with the DMM and record the reading. Subtract the DMM
reading from the verification point. Verify that the calculation falls between the limits in
Table 22 or 23.
Note Use the values in the 1 Year Limits column. The values in the 24 Hour Limits
column are for a post-adjustment verification only.
Table 22. VB-8012 DC Power Supply Current Programming and Measurement Accuracy
Channel
Verification
Point (A)
Voltage
Limit (V)
1 Year Limits ±(A)
24 Hour Limits
±(A)
+6 V 0.01 6 0.01002 0.00201
1 0.01200 0.00300
+25 V 0.005 25 0.00401 0.00101
0.5 0.00475 0.00150
-25 V 0.005 -25 0.00401 0.00101
0.5 0.00475 0.00150
Table 23. VB-8034/8054 DC Power Supply Current Programming and Measurement
Accuracy
Channel
Verification
Point (A)
Voltage
Limit (V)
1 Year Limits ±(A)
24 Hour Limits
±(A)
+6 V 0.03 6 0.01006 0.001058
2 0.01400 0.001550
+25 V 0.01 25 0.00402 0.000323
1 0.00550 0.000570
-25 V 0.01 -25 0.00402 0.000323
1 0.00550 0.000570
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