Fluke Calibration 5322A, Руководство по калибровке

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5322A
Calibration Manual
60
AC HIPOT Leakage Current Adjustment
Adjust the HIPOT Leakage Current ammeter with the front panel keyboard. Adjustment is done
on the ac signal.
To make this adjustment, see
Figure 34 :
1. Connect the 5522A to the Product output terminals.
2. Push the
Setup softkey on the Product.
3. Highlight Calibration and push the Select softkey.
4. From the calibration menu, highlight AC HIPOT Leakage Current and push the Select
softkey. The list of adjustment points shows, see Table 15 .
Table 15. AC HIPOT Leakage Current Calibration Points
5. Select the first position with the nominal value of 0.025 mA. The Product shows the actual
measured current.
6. Set the Product function to ac current and set the value to 0.025 mA at 55 Hz.
7. On the 5522A, push the ON button. The Product reads approximately 0.025 mA.
8. Use the cursor buttons or rotary knob to set the measured value of 0.025 00
μ
A.
9. Push the Write button to save the new value for the 0.3 mA current range. To leave the
original value, push the Exit softkey. The Product ignores the measured current and returns
to list of current ranges.
10. Go through all ranges in the list and adjust each of them.
11. When the calibration process concludes, push the
Exit softkey until the display shows the
Low resistance source function.
Nominal Current
Range
Position Adjustment Point Frequency
Required
Accuracy of
Adjustment
0.3 mA ac
Range 300
μ
A
55 Hz low
0.025 mA 55 Hz 0.05 %
0.3 mA ac
Range 300 μ A
55 Hz high
0.250 mA 55 Hz 0.05 %
3 mA ac
Range 3 mA
55 Hz low
0.250 mA 55 Hz 0.05 %
3 mA ac
Range 3 mA
55 Hz high
2.5 mA 55 Hz 0.05%
30 mA dc
Range 30 mA
55 Hz low
2.5 mA 55 Hz 0.05 %
30 mA dc
Range 30 mA
55 Hz high
25 mA 55 Hz 0.05 %