Pressure Gauge Calibration

#1
Can I use a hydraulic dead weight tester to calibrate a pressure gauge used to measure air flow. Will there be any performance related issues if we do so?
 
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dwperron

Trusted Information Resource
#2
It depends on things like possible contamination of the pressure gauge by hydraulic fluid.
The pressure range being calibrated will also matter, since dead weight testers are usually for high pressures and pressure gauges used in flow measurements tend to be low pressure. The ranges involved may not be compatible.
 

RW451

Starting to get Involved
#3
Dead weight testers can be used with distilled water, otherwise I agree with dwperron, dead weight testers are typically for high pressure gauges.

Google calibration of manometers.

Example: Calibration of Manometers

Caveat: Never use a dead weight tester that previously used oil. Never, ever use hydrocarbon based oils with oxygen system pressure gauges.
 

BradM

Staff member
Admin
#4
First, welcome to The Cove!

Second, total agreeance with the other two responses.

I guess I'm intrigued with the phrase "performance related issues". An accuracy verification (hooking up a standard and verifying accuracy) should not impeded how that device works.

When you state pressure gauge, is this the Bourdon tube type with an open port on the bottom?

What range/ accuracy is your pressure gauge?
What range/accuracy is your dead weight tester?
 
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