Pressure Measure - Fluke 71X Series Calibration Manual

71X Series
Calibration Manual
5. Connect the test leads from the AUX jacks of the Fluke 5520A to the mA jacks on the
6. Set the Fluke 5520A to 0.00000 mA.
7. When 0.0 mA is sourced from the 5520A, the upper display shows approximately
8. Set the Fluke 5520A to 12.0000 mA. The upper display shows approximately 12.000
9. Push  on the 717.
10. When 12.000 mA is sourced from the 5520A, the upper display shows approximately
11. Set the Fluke 5520A to 24.0000 mA.
12. Push  on the 717. CHEC is shown on the lower display. The CHEC mode lets you
13. Push  to continue. The lower display changes to:

Pressure Measure

The 717 has built-in temperature compensation. A stable temperature environment is
necessary when you calibrate the Instruments. Calibration facilities must be kept near
23 °C nominal. Re-calibration (recharacterization) is done in terms of PSI pressure units.
Inputs that use other pressure units (kPa and bar, for example) must be mathematically
converted.
1. Disconnect the test lead from the 717 mA jacks and carefully attach the pressure
Use TEFLON tape at the pressure fittings to strengthen the seal.
2. After you measure the correct range, push to continue.
3. Vent the system to ambient air to make sure 0.00 PSI or 0.000 PSI.
72
In mA Measurement Calibration mode, the 717 will show:
mA on the upper display
and
CAL 0 mA on the lower display
717 (black to black and red to red).
0.000 mA. When  is pushed, the unit makes the calibration constant for that point
and the lower display changes to CAL 12 mA. The upper display continues to show
the applied current so it does not change until after 12 mA is applied.
mA.
24.000 mA. When  is pushed, the 717 makes the calibration constant for that
point and the lower display changes to CAL 24 mA. The upper display continues to
show the applied current so it does not change until after 24 mA is applied.
The upper display shows approximately 24.000 mA.
quickly examine the calibration constants that you have just stored. Changes to the
applied current are shown on the display.
rAnGE
fitting of the deadweight tester to the 717 pressure jack.
The lower display shows rAnGE.
The upper display must show the full-scale range for the 717, for example:
•
For the 717 15G, upper display shows 15.
•
For the 717 100G, upper display shows 100.
Note