RE: [PSUBS-MAILIST] bubble pressure

["Jens Laland" <laland@artematrix.org>]

Jay

I hope you do agree that the Papenberger is not a differential type gauge.
The way I see it, this hydraulic type gauge should be quite independent
from any local influences, i.e. from various local atmospheric pressure
conditions inside the boat.

regards,
Jens


** You have to be careful with this method as most gages are set up as
** differential gages and sense atmospheric pressure as the other pressure.
** Thus a regular gage will not see any difference between the sensing tube
** and
** the ambient around the gage.  As an additional note, you can get gages
** that
** are marked in feet seawater and will sense just about any depth you
** want.you
** just need to insure that they are PSI Absolute (psia) and not PSI Gage
** (psig).
**
** R/Jay





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