Paladin
Contributor
I have an old Sherwood SPG on one of my USD Aquarius regulators that consistently reads 200 PSI low. For example, with a tank pressure of 3000 PSI, the gauge reads 2800. Can these things be recalibrated to read correctly?
Recalibrating an SPG
- Thread starter Paladin
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R
redacted
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What does it read at the low end of the scale? Recalibration is somewhere between difficult and impossible. But if the error is known and consistent, you can adjust it mentally. With only a 200 psi error, once the needle touches the post, you nee4ded to be on the surface anyway.
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Or scribe it on the gauge face.
OP
Paladin
Contributor
It stays 200 PSI low all the way to the bottom. When the gauge reads empty, there is still about 200 PSI in the tank. I have been adjusting mentally to the discrepancy but it kind of bothers me that it isn't accurate.
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