Wideband Output Accuracy At 1 Khz Test; Wideband Accuracy At 1 Khz Test Setup - Fluke 5700A Series Service Manual

Table 3-11. Equipment Required for Testing and Calibrating the Wideband Option
Equipment
AC Measurement Standard
Wideband cable
50Ω Termination
Adapter
Adapter

3-28. Wideband Output Accuracy at 1 kHz Test

This test verifies the Wideband output level at 1 kHz by direct measurement with the
5790A at INPUT 2. Use Table 3-31 for a test record.
Proceed as follows to characterize the rms wideband voltmeter at 1 kHz:
1. Connect the equipment as shown in Figure 3-16.
Calibrator (UUT)
Wideband
Output
Figure 3-16. Wideband Accuracy at 1 kHz Test Setup
2. Set the Calibrator wideband output to 2.1V at 1 kHz and the 5790A to read INPUT 2.
3. Push the 2.2V RANGE button on the 5790A to lock it on the 2.2V range.
4. On the 5790A push UTIL MENUS button and then MEAS CONTROL soft key. Set
the digital filter mode to FAST and the restart to MEDIUM. Push the DONE soft key
twice to return to the measurement display.
5. Use the Calibrator output adjustment knob to obtain a reading on the 5790A
measurement display of 2.100000 ±20 counts.
6. Read the error on the Calibrator display and record it in Table 3-32 for the 2.1V level
for the appropriate verification internal. Verify that it is within spec limits shown.
7. Push the soft key under the RANGE display on the 5790A to return to AUTO
RANGE.
8. Proceed to the remaining levels shown in Table 3-32 and repeat steps 5 through 7
with the appropriate output levels set in each step, using the adjustment tolerance in
Table 3-12 in step 5.
BNC(F) to Banana Adapter
Wideband
Output Cable
50Ω Termination
N(F) to BNC(M) Adapter
Calibration and Verification

Wideband Output Accuracy at 1 kHz Test

Model or Description
Fluke 5790A with Wideband Option -03
Supplied with 5700A-03
Supplied with 5700A-03
Pomona 1269 BNC(F) to dual banana plug.
Kings KN-99-46 N(F) to BNC(M)
Input 2
5790A
F3-12.EPS
3-39
3