Pressure Verification - Fluke 712 Calibration Manual

5520A Outputs (Ω)
5.00
300.00
1500.0
30000.0
11. Make 2-wire connections on the 712 to 4-wire connections on the Fluke 8508A. Set
the Fluke 8508A to measure 4-wire resistance.
12. Press I until OUTPUT is displayed.
13. Set the 712 to output the resistance values in Table 42. Verify that the Fluke 8508A
readings are within the limits shown.
712 Outputs (Ohms)
5.00
300.00
1500.0
30000.0
14. Disconnect all connections to the 712. The 712 verification test is complete.
713 Verification

Pressure Verification

1. Carefully attach the pressure fitting of the deadweight tester to the pressure port of
the 713 Calibrator.
The use of TEFLON tape at the pressure fitting strengthens the seal.
2. Press the green O key to turn the 713 on.
3. The display should read 0.00 PSI with the deadweight tester opened up to ambient
air. If not, press the
4. Depending if the instrument being tested is a 713 30G or a 713 100G, set up the
deadweight tester for the sequence of PSI inputs from Table 43 to be injected into the
pressure port of the 713 Calibrator.
5. Ensure the pressure has stabilized at each input before verifying the display reading.
6. Carefully vent all pressure and disconnect the 713 from the deadweight tester.
Table 41. 712 Verification Resistance Values
Table 42. 712 Verification Outputs
Note
Z key until display does read 0.00 PSI.
4-wire 712 Readings (Ω)
4.899 to 5.101
299.825 to 300.175
1499.525 to 1500.475
2999.15 to 3000.85
Fluke 8508A Readings (Ohms)
4.899 to 5.101
299.825 to 300.175
1499.525 to 1500.475
2999.15 to 3000.85
Process Calibrators
Verification
31