NI VirtualBench Calibration Procedure | © National Instruments | 29
Note Ensure that the VirtualBench is warmed up for at least 30 minutes and the
calibrator is warmed up for the minimum time required as specified in its user
documentation.
3. Verify that a self-calibration has been performed on the function generator before
VirtualBench calibration.
Oscilloscope Verification
You can use the verification procedure described in this section for both pre-adjustment and
post-adjustment verification.
Verifying the Oscilloscope Offset
Complete the following steps to verify the VirtualBench oscilloscope offset.
Note In this procedure, the 50 Ω BNC terminator is only needed for the VB-8012.
The VB-8034 and VB-8054 use an internal 50 Ω BNC terminator during calibration.
1. (VB-8012) Connect a 50 Ω BNC terminator to oscilloscope channel 1, as shown in
Figure 13.
(VB-8034/8054) Ensure there are no cables connected to any oscilloscope channels.
Figure 13. VB-8012 Oscilloscope Offset Channel 1 Connection Diagram
2. Call MSO Initialize.
3. Call
MSO Configure Timing with the following parameter:
• Sample Rate =
1M
• Acquisition Time (s) = 0.1
• Pretrigger Time (s) = 1e-9
• Sampling Mode = Sample
1 VB-8012 Oscilloscope 250Ω Terminator
To Next Page
Loading...
