Page 15 - Pressure Calibration Brochure

Pressure TECH
Module

TIPS

Hand • Safety First! Check all
Pump
ittings, adapters and
connecting tubing ratings

for pressures used.

• Remember to tap analog Pressure Input
gauges at each point due to

friction in mechanical parts.

• Gas is preferred for
cleanliness requirements

but use caution when
To perform the test:
generating pressures above

2,000 psi.

• Industry standards
STEP Isolate the pressure gauge from the process using valves, or by removing
usually desire calibration 1
the gauge from the process.
equipment to be 4-10 times
more accurate than the
STEP Connect the gauge to the calibrator or reference gauge. For hydraulic
device under test.
2 pressure gauges it’s important to remove any gas that might be trapped in
• When in the ield, connect the luid in the gauge, calibrator, and connections by priming the system.

pressure gauges through a When generating pressure allow a few moments for stability. Compare the
manifold or “tee” connector.
reading of the gauge under test with the master gauge or calibrator.

• Use adapter ittings

when workloads require STEP For hydraulic pressure gauges it’s important prime the system. This will
calibrating a wide variety of 3
remove any gas that might be trapped in the luid in the gauge, calibrator
gauges.
or connections.

• Consider irst, the in-use
orientation of a device and
STEP When generating pressure allow a few moments for the measurement
use an angle adapter at the 4
bench to achieve similar to stabilize. When using a hydraulic hand pump as a source it can take
several minutes for the pressure to stabilize due to the thermodynamic
orientation.
effect of luids.
• Use a liquid-to-liquid
separator to prevent
STEP Compare the reading of the gauge under test with the master
contamination in hydraulic
applications.
5 gauge or calibrator.

Additional resources
How to use a deadweight tester
For more in depth information about Fluke 719 electric pressure calibrator demonstration

this application check out these videos
and application notes from Fluke.
Transmitter Calibration with the Fluke 750 Series DPC
HART transmitter calibration

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