crpntr133
lost, even with a compass
When filling in the "working pressure" for a dive on the Aeris program, what is used? 3,000 for an AL80, 2400 or 2640 for LP?
Working pressure for Atmos2??
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H2Andy
Contributor
well, you need to know what the working pressure of the specific tank you used is, because they can vary by manufacturer
generally speaking, AL80's are rated to 3,000 psi
LP steel tanks are usually rated to 2,400 or 2,400+10% (2,640)
HP steel tanks are all over the place
here's a chart for the various models:
http://www.huronscuba.com/equipment/scubaCylinderSpecification.html
generally speaking, AL80's are rated to 3,000 psi
LP steel tanks are usually rated to 2,400 or 2,400+10% (2,640)
HP steel tanks are all over the place
here's a chart for the various models:
http://www.huronscuba.com/equipment/scubaCylinderSpecification.html
OP
crpntr133
lost, even with a compass
I guess I should have been more specific. I have an LP 85 at the plus rating. Should it be 2400 or 2640? I makes no sense to make it 2640. Makes a difference of 0.1 but just curious. I haven't done the math myself but was told today by a DB that the software figures the SAC a bit different than the "usual" formula. Sorry don't have the "formula" in front of me.
H2Andy
Contributor
it should be 2640 because it's probably trying to figure out what your cf/psi ratio is
in other words, the tank will hold it's rated capacity (85 cf) at 2640 psi
(it's probably less than a full 85 cf capacity ... my LP 85's actually hold 82.7 cf)
in other words, the tank will hold it's rated capacity (85 cf) at 2640 psi
(it's probably less than a full 85 cf capacity ... my LP 85's actually hold 82.7 cf)
OP
crpntr133
lost, even with a compass
Makes sense now. Wasn't thinking about the 85cf being at 2640psi.
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