Fluke 5700A Series II Service Manual page 102

5700A/5720A Series II Calibrator
Service Manual
1. Connect the equipment as shown in Figure 3-10(A) use the 2A shunt.
2. Enter the ac to dc difference corrections for each shunt at each frequency in the
3. Set the Calibrator for a +2A dc output. Adjust the output so that the error display is
4. Push the INPUT 1 button on the 5790A if you are using the INPUT 1 setup, or the
5. Push the SET REF soft key on the 5790A.
6. Set the Calibrator for a -2A dc output. Adjust the output so that the error display is
7. Press the AVG REF soft key on the 5790A after the 5790A reading settles.
8. Set the Calibrator to 2A at 40 Hz and OPERATE.
9. Record the error displayed on the 5790A in Table 3-26 or 3-27.
10. Return to the error corrected +2A DC output that was set in step 3 and verify that the
11. Algebraically add the 5790A error display reading to the A40 Shunt ac to dc
12. Change the Calibrator frequency to 1 kHz, 5 kHz and 10 kHz. At each frequency
13. Repeat steps 3 through 12 at currents of 200 mA and 20 mA using the appropriate
14. For units with a 5725A Amplifier attached, use the test set up shown in Figure
3-32
appropriate column of the test record (Table 3-26 or 3-27).
equal to the UUT actual error for a +2A output, as shown on the dc current test
record in Table 3-20 (5720A) or Table 3-21 (5700A).
SHUNT button if you are using the SHUNT set up. Let the 5790A settle on a
reading.
equal to the UUT actual error for a -2A output, as shown in Table 3-20 (5720A) or
Table 3-21 (5700A).
5790A display returns to a zero reading ±10 PPM. If necessary, repeat steps 3
through 9 until the required results are obtained.
difference, and verify that the result is within the specifications of the test limits.
Record the results on Table 3-26 (5720A) or Table 3-27 (5700A).
record the 5790A error display. Verify the results as was done in steps 8 and 9.
A40 current shunt at the frequencies shown on the test record (Table 3-26 or 3-27).
3-10(B) using the 10A shunt at the frequencies listed on the test record.