Keypad Test; Dc Current Measure Verification - Fluke 71 Series Calibration Manual

Keypad Test

1. Using the large { scroll key, press to step down to 12.000 mA.
2. Using the small ] scroll key, press to verify that the numbers scrolling on the
display change in .001 increments; then change in .01 increments; then change in 0.1
increments.
3. Using the small } scroll key, press to verify that the numbers scrolling on the
display change in .001 decrements; then change in .01 decrements; then change in 0.1
decrements.
4. Scroll to 12.000 mA.
5. Press the A key on the 715 Calibrator. Display should change to:
OUTPUT

DC Current Measure Verification

1. Press I key on the 715 Calibrator. Display should indicate closely to:
INPUT
2. Press the A key and the display should change to:
INPUT
3. Connect a test lead from Red AUX terminal of the 5520A to the Fluke 8508A I+
terminal.
4. Connect a test lead from Black AUX terminal of the 5520A to the 715 Calibrator
Com terminal.
5. Connect a test lead from I- terminal of the Fluke 8508A to the 715 Calibrator mA
terminal.
6. Adjust the 5520A if necessary so that the current shown on the Fluke 8508A is the
same as the 5520A values shown in Table 53.
7. Verify that the display readings on the 715 Calibrator are within the limits.
Fluke 5520A
24.0000 mA
12.0000 mA
4.0000 mA
50.00 mA %
-25.00 mA %
0.000 mA
Table 53. 715 DC Current Measure Verification
Fluke 715
23.993 mA to 24.007 mA
11.996 mA to 12.004 mA
3.998 mA to 4.002 mA
Process Calibrators
Verification
35