Calibrators
Calibration Adjustment
43
Cal mA Input (Fluke 725 Only)
Connect the UUT as shown in Figure 15.
aal06f.eps
Figure 15. mA Input Calibration Connections
From the Calibration Menu, type the cal step for Cal mA Input. The PC displays:
Enter 0 ma - press space bar to continue
Set the Fluke 5520A to output 0.000 mA, let the reading settle a few seconds, then press
the space bar on the PC. After a short while, the PC displays the following calibration
constant and new prompt:
Offset = -337
Enter 24.00 ma - press space bar to continue
Set the Fluke 5520A to output 24.000 mA, let the reading settle a few seconds, then press
the space bar on the PC. After a short while, the UUT displays the following calibration
constants and new prompt:
diff = (Counts - Offset)
8106924 = 8106587 - -337
mA per count = 0.000003
press space bar to continue
Press the space bar to return to the Calibration Menu.