Wideband Output Flatness Test - Fluke 5730A Calibration Manual

5730A
Calibration Manual
5730A Series II Wideband Output
2.10000 V
1.00000 V
300.000 mV
100.000 mV
30.0000 mV
10.0000 mV
3.00000 mV
1000.00 μV

Wideband Output Flatness Test

Use Table 23 as a test record. To perform wideband output flatness test, proceed
as follows:
1. Connect the equipment as shown in Figure 19. Note that the Calibrator
2. Set the wideband output to 3 V at 1 kHz.
3. Push the WBND button on the 5790A, when the reading has settled, push the
4. Set the Calibrator to frequencies shown in Table 23 for the 3 V output and
5. Verify that the error readings are within spec limits or reduced spec limits
6. Repeat steps 4 and 5 for the remaining output levels shown in Table 23 using
84
Table 20. Wideband Adjustment Tolerance
wideband cable is connected to the 5790A directly, the termination is not
used.
5730A
Wideband
Output
Figure 19. Wideband Flatness Test Setup
SET REF soft key.
record the errors on the 5790A error display at each frequency in Table 23.
shown on the test record. Reduced spec limits are used when the TUR (Test
Uncertainty Ratio) is less than 4:1.
the appropriate voltage in step 4.
5790A Adjustment Counts ±ppm
20
10
3
10
3
1
1
1
Wideband
Output Cable
5790A
Wideband
Input
F3-13.EPS