Pressure Calibrator
Verification Procedure
3
Table 1. Required Equipment for Verification and Calibration
Equipment Minimum Specifications Recommended Model
Low thermal EMF banana
to banana leads
-
Pomona 2948-36-2 (red)
2948-36-0 (black)
RTD Adapter - Fluke 720URTDA
Calibrator
0 V to 30 V
Accuracy: 0.003 % + 0.5 mV
0 mA to 24 mA
Accuracy: 0.006 % + 0.25 mA
-40 °C to 150 °C RTD
0.1 °C
Fluke 5522A
DMM
0 to 30 Volts
Accuracy: 0.5 V
Fluke 8846A
Pressure
Controller/Calibrator
-14 PSI to 300 PSI
0.005 %
Ruska 7250xi
Metrology Well
-30 °C to 140 °C
0.06 °C
Fluke 9170
Verification Procedure
XWWarning
To prevent possible electrical shock, fire, or personal injury, do
not perform the performance test or verification test procedures
unless the Product is fully assembled.
The performance tests verify the complete operation of the Product and measure
the accuracy of each function against Product specifications. If the Product fails a
part of the test, calibration adjustment or repair is necessary. See “Calibration
Adjustment Procedure”.
The performance verification tests check the accuracy of each Product function
against its specifications. If the Product fails any of these tests, calibration
adjustment or repair is necessary.
Pressure Verification
1. Carefully attach the pressure fitting of the Pressure Controller/Calibrator or
Piston Gauge, called pressure source for the remainder of this procedure, to
the first pressure port of the Product.
Note
Use a sufficient amount of PTFE tape when attaching pressure
fitting.
The display should read 0.00 PSI with the deadweight tester opened up to
ambient air. If not, push until both displays read 0.00 PSI.
2. Set up the deadweight tester for the sequence of PSI inputs from Table 2 to
be injected into the pressure port of the Product.
3. Ensure the pressure has stabilized at each input before the display reading is
verified.
To Next Page
Loading...
