Fluke 716 - Ma Measure Verification; Ma Loop Power Verification (718 Only)

71X Series
Calibration Manual
50
Table 69. 718 Leak Test Verification
718 1G 718 30G
Adjusted Pressure Maximum Leak Rate Adjusted Pressure Maximum Leak Rate
-1.000 psi -10.000 psi
3.000 psi 1.000 psi
0.005 psi/min
30.000 psi
0.05 psi/min
718 100G 718 300G
Adjusted Pressure Maximum Leak Rate Adjusted Pressure Maximum Leak Rate
-10.00 psi -10.00 psi
3.00 psi 3.00 psi
100.00 psi
0.10 psi/min
100.00 psi
0.3 psi/min
mA Measure Verification
The display should indicate:
0.000mA 0.00 PSI
1. Connect a test lead from Red AUX terminal of the 5520A to the Fluke 8508A I+
terminal.
2. Connect a test lead from Black AUX terminal of the 5520A to the Calibrator Com
terminal.
3. Connect a test lead from I- terminal of the Fluke 8508A to the Calibrator mA
terminal.
4. Adjust the 5520A if necessary so that the current shown on the Fluke 8508A is the
same as the 5520A values shown in Table 70.
5. Verify that the display readings on the Calibrator are within the limits.
Table 70. 718 and 718Ex mA Measure Verification
Fluke 5520A Fluke 718 Fluke 718Ex
4.0000 mA 3.998 mA to 4.002 mA 3.997 mA to 4.003 mA
12.0000 mA 11.996 mA to 12.004 mA 11.996 mA to 12.004 mA
24.0000 mA 23.993 mA to 24.007 mA 23.993 mA to 24.007 mA
6. Disconnect the test leads and turn off the 718 Calibrator.
mA Loop Power Verification (718 Only)
1. Hold down both LOOP POWER keys ( U and O ) at the same time until the
screen reads:
---------- LOOP mA
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.