[PSUBS-MAILIST] Acceptable cabin pressure swing

[Emile van Essen via Personal_Submersibles]

A alarm would be a good safety measure. My O2 analyzer has hi/lo alarms but
for the pressure I have just a barometer and altimeter.
My overpressure valve operates at abt. 30 mbar or a 1/2 Psi

Regards, Emile

-----Oorspronkelijk bericht-----
Van: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
Namens Jon Wallace via Personal_Submersibles
Verzonden: woensdag 24 februari 2016 20:13
Aan: Personal Submersibles General Discussion
Onderwerp: [PSUBS-MAILIST] Acceptable cabin pressure swing


I think this is somewhat subjective but what is general consensus on 
maximum cabin pressure swing (higher/lower) relative to hatch closing at 
the start of a dive before setting off alarms?  My thought is that an 
alarm should sound well before any point of emergency.  I'm considering 
sounding a warning at 2psi +/- and an alarm at 4psi +/-  but I'm not 
sure if this is too strict.

Jon
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