National Instruments VirtualBench, Процедура калибровки

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NI VirtualBench Calibration Procedure | © National Instruments | 55
• Plug the VirtualBench, PC, and the test equipment into the same power strip to avoid
ground loops.
• Verification limits are defined assuming the same test equipment is used during verification
and adjustment.
• Maintain an ambient temperature of 23 ±5 °C. The device temperature will be greater than
the ambient temperature.
DC Power Supply Initial Setup
Note
This section is necessary for pre-adjustment verifications only. If you are
performing a post-adjustment verification, skip the setup and go directly to the
DC Power Supply Verification section.
To set up the test equipment, complete the following steps:
1.
If VirtualBench is running, shut down all instruments on the VirtualBench, and close the
VirtualBench software. Remove all signal connections.
2. Verify that the DMM has been calibrated within the proper calibration interval specified in
its specifications, and a self-calibration is performed.
Note
Ensure that the VirtualBench is warmed up for at least 30 minutes and the
DMM is warmed up for the minimum time required as specified in its user
documentation.
Note
Before verifying or adjusting the DC power supply, you must enable and set
the output voltages at full scale for a minimum of 15 minutes.
Note
If you are calibrating both the DMM and the DC power supply, the DMM
must be calibrated first.
DC Power Supply Verification
You can use the verification procedure described in this section for both pre-adjustment and
post-adjustment verification.