Ma Measure Verification; Ma Loop Power Verification - Fluke 712 Calibration Manual

716 Verification

mA Measure Verification

1. Press the green O button to turn the calibrator on. The display should read:
-----------
then change to:
0.000
2. Connect a test lead from Red AUX terminal of the 5520A to the Fluke 8508A I+
terminal.
3. Connect a test lead from Black AUX terminal of the 5520A to the 716 Calibrator
Com terminal.
4. Connect a test lead from I- terminal of the Fluke 8508A to the 716 Calibrator mA
terminal.
5. Adjust the 5520A if necessary so that the current shown on the Fluke 8508A is the
same as the 5520A values shown in Table 65.
6. Verify that the display readings on the 716 Calibrator are within the limits.
Fluke 5520A
4.0000 mA
12.0000 mA
24.0000 mA
7. Disconnect the test leads and press O to turn the power off.

mA Loop Power Verification

1.
Hold down both LOOP POWER keys ( U and
screen reads:
----------
then release the keys.
2. Apply 1 kΩ to the mA jacks from the decade box or other resistor source. The
display should read over 21 mA but less than OL.
3. Apply 2 kΩ to the mA jacks from the decade box or other resistor source. The
display should read between 11 mA and 13 mA.
4. Press O to turn the calibrator off.
mA
mA
Table 65. 716 mA Measure Verification
LOOP mA
Fluke 716
3.998 mA to 4.002 mA
11.996 mA to 12.004 mA
23.993 mA to 24.007 mA
O ) at the same time until the
Process Calibrators
Verification
43