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71X Series
Calibration Manual
3. Connect a test lead from I- terminal of the Fluke 8508A to the Calibrator mA
4. Adjust the 5520A if necessary so that the current shown on the Fluke 8508A is the
5. Verify that the display readings on the Calibrator are within the limits.
Fluke 5520A
4.0000 mA
12.0000 mA
24.0000 mA
6. Disconnect the test leads and turn off the 718 Calibrator.
mA Loop Power Verification (718 Only)
1.
2. Apply 1 kΩ to the mA jacks from the decade box or other resistor source. The
3. Apply 2 kΩ to the mA jacks from the decade box or other resistor source. The
4. Press
Sensor Jack Verification
1. Make sure nothing is connected to the sensor port of the calibrator. Push
2. Plug the Fluke Pressure Module into the sensor port of the Fluke 718. The display
3. Disconnect the Fluke Pressure Module and push O to turn the calibrator off.
Display Verification
1. Press and hold the
2. Check to see that all segments of the display are showing.
3. Turn the calibrator off. The 718 and 718Ex verification test is now complete.
44
terminal.
same as the 5520A values shown in Table 66.
Table 66. 718 and 718Ex mA Measure Verification
Fluke 718 (V2.9 and lower)
3.998 mA to 4.002 mA
11.996 mA to 12.004 mA
23.993 mA to 24.007 mA
Hold down both LOOP POWER keys ( U and
screen reads:
----------
LOOP mA
then release the keys.
display should read over 21 mA but less than OL.
display should read between 11 mA and 13 mA.
O
to turn the calibrator off.
the calibrator on. The display should read:
----------
then change to:
0.000
should change to:
----------
A pressure value should appear on the screen after all of the calibration constants
have been downloaded.
Z
key and then press and release the green O key. This locks
the 718 in a mode where all display segments are on. All segments will stay on until
the
Z
key is released.
Fluke 718 (V3.0 and higher)
3.997 mA to 4.003 mA
11.996 mA to 12.004 mA
23.994 mA to 24.006 mA
O
) at the same time until the
Fluke 718Ex
3.997 mA to 4.003 mA
11.996 mA to 12.004 mA
23.993 mA to 24.007 mA
O
to turn
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