NI VirtualBench Calibration Procedure | © National Instruments | 53
10. Call FGEN Setup Gain Calibration with the following parameters:
• Enable Filter—Supplied from the output of FGEN Get Gain Calibration Adjustment
Points
• Adjustment Point—Supplied from the output of FGEN Get Gain Calibration
Adjustment Points
11. Wait 100 milliseconds.
12. Perform a measurement with the DMM in a range greater than 12 V. Record the reference
value measurement.
13. Call
FGEN Adjust Gain Calibration with the following parameter:
• Reference Value—Supplied from measurement in step 12
14. Repeat steps 10 through 13 for all adjustment points.
15. Call
FGEN Close Calibration with the following parameter:
• Action = Commit
You have completed adjusting the VirtualBench FGEN. It is recommended that you perform a
post-adjustment verification.
FGEN EEPROM Update
When an adjustment procedure for the FGEN is completed, the VirtualBench internal calibration
memory (EEPROM) is immediately updated.
If you do not want to perform an adjustment, you can update the calibration date and onboard
calibration temperature without making any adjustments by calling
Cal Set Calibration
Information
.
FGEN Re-Verification
Repeat the FGEN Verification section to determine the As-Left status of the instrument.
Note If any test fails re-verification after performing an adjustment, verify that you
have met the conditions listed in the FGEN Test Conditions section before returning
your device to NI. Refer to Where to Go for Support for assistance in returning the
device to NI.
DC Power Supply Calibration Procedure
This section contains the verification and adjustment procedures for the DC power supply on the
VirtualBench. The calibration process includes the following steps:
1. DC Power Supply Initial Setup—Set up the test equipment.
2. DC Power Supply Verification—Verify the existing operation of the instrument. This step
confirms whether the instrument is operating within its specified range prior to adjustment.
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