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Re: [PSUBS-MAILIST] Regulators, barometers and oxygen
Alan, Aircraft altimeter are adjustable.
Adjust them to the half of the scale to zero (like an airfield in 16.000feet high..)
and it works in both directions..
I would adjust mine Mig15 Altimter to 2000 meter high.
So it indicate - 2000 up to + 8000 meter.
I have no idea if you can do the same with a skydiver altimeter.
vbr carsten
"Alan James" <alanjames@xtra.co.nz> schrieb:
> Carsten,
> How come you & Phil are talking about altimeters.
> They only measure pressure below 1 atm.
> Wouldn't it be better to have a barometer that indicated over pressure as well?
> Also when is the Euronaut going in the water?, must be nearly finished.
> Alan
>
> ----- Original Message -----
> From: <MerlinSub@t-online.de>
> To: <personal_submersibles@psubs.org>
> Sent: Friday, December 31, 2010 11:32 PM
> Subject: [PSUBS-MAILIST] Regulators, barometers and oxygen
>
>
> Scuba diving without minimum three feet of ice over the head? Why?
>
> -Last scuba dive 2 years ago..- :-(
>
> I just count the regulatos in Euronaut:
>
> 01) Main Oxygen regulator in control room (CR) HP to LP, with gauge
> 02) Oxygen flow needle vale in CR, LP to ambient, with flow gauge
> 03) Oxygen flow needle vale in diver chamber (DR), LP to ambient, with flow gauge
> 04) Main Pressure reducer from HP to LP for the hard tanks in CR
> This one is a big industrial one. With gauge.
> 05) 1 Emergency scuba two stage regulators with Octopus on the HP Valve board in Machinery Room
> 06) 4 Emergency scuba regulator second stage (octopus) on the ceiling of the saloon.
> 07) 1 Scuba regulator first stage behind the saloon walls to feed 06) with gauge
> 08) 1 Emergenny scuba regulator both stages with octopus in the diver chamber from the HP line
>
> If the Euronaut will retiered in 30 years or so I can feed a scuba diver museum with a douzend different regulators alone. All
> regulators are inside and with exeption of 04) with quick connectors for maintance.
>
> The sub has 40 m3 inside volume. The O2 bottle in use is inside has just 2 m3 or 5% of the internal volume.
> The bottle in use reach about 83 hour for one or 21 hours for four persons. Very fine for a weekend.
> If the main valve of this bottle fails and all oxygen goes into the hull it will incrase the oxygen level from 21 to max 26%.
> There is a second bottle as spare but not conneted inside. And there are four more o2 bottles with a total volume of 44 m3
> outside - reach for 4 guys about one months..
>
> The "barometer" is an altimeter from a old russian MIG 15. Goes up to 10.000 meter (33.000 feet)(The russians use also metric -
> very nice) During underpressure test with closed hatches and running diesel we reach 5.000 meter (16.500 feet)in 5 Minutes before
> illness of all three peersons started. For a smaller sub I would use a smaller skydiver altimeter as Phil allready indicate.
> Original I was looking for a altimeter from a Ju 87 Stuka. This unit comes with a adjustable second nice red indicator with close
> at the right high a electic contact to drop the bomb. In our case to stopp the diesel. But I was to late on the auction.
>
> http://cgi.ebay.at/Orig-Kontakt-Hoehenmesser-Ju-87-Stuka-Fl-22317-1943-/250728825890
>
> :-) Carsten
>
>
> "Hugh Fulton" <hc.fulton@gmail.com> schrieb:
> > Emile,
> >
> > I cannot understand how a clever person will Scuba dive in 1 degree. I
> > think you are crazy. J
> >
> > You will never find me in under 10 degrees. However it is nice to know that
> > the equipment works in those temperatures.
> >
> > Happy new year,
> >
> > Hugh
> >
> >
> >
> >
> >
> >
> >
> > From: owner-personal_submersibles@psubs.org
> > [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Emile van Essen
> > Sent: Friday, 31 December 2010 10:55 a.m.
> > To: personal_submersibles@psubs.org
> > Subject: RE: [PSUBS-MAILIST] Regulators
> >
> >
> >
> > Hugh,
> >
> >
> >
> > The number 1 or 4 is the number of low pressure ports. 1 LP port is needed.
> >
> > We monitor the content of the bottle with a gauge outside . To be viewed
> > trough the the dome. This saves throughhulls and plumbing.
> >
> > Cheers, Emile
> >
> >
> >
> > Ps. The Apeks is also good in cold water; I dived yesterday SCUBA in water
> > of 1 Deg. Celcius. : no freezing problems but sub dives are warmer?..
> >
> >
> >
> > _____
> >
> > Van: owner-personal_submersibles@psubs.org
> > [mailto:owner-personal_submersibles@psubs.org] Namens Hugh Fulton
> > Verzonden: donderdag 30 december 2010 22:34
> > Aan: personal_submersibles@psubs.org
> > Onderwerp: RE: [PSUBS-MAILIST] Regulators
> >
> >
> >
> > Thanks Emile and Sean,
> >
> > I have never come across Apeks but just googled it and now better informed.
> > I will go with Apeks 1st stage. What is the difference between DS1 and
> > DS4?
> >
> > I like the idea of all regs outside with secondary regs inside, if required,
> > for oxygen where constant pressure for constant flow is required. I am
> > looking for a small panel mount second stage now.
> >
> > The only problem with regs outside is you need another 2 ports for contents
> > monitoring. I am a bit short of through hull?s. I have 12 x ¼?npt and 10 x
> > ½? npt and 2 x 1? npt. I thought that would have been heaps.
> >
> > I have finally had my hull tested at 515 ft with windows in and now fitting
> > the hull to the fibreglass fairing. Getting closer. Chs, Hugh
> >
> >
> >
> >
> >
> > From: owner-personal_submersibles@psubs.org
> > [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Sean T.
> > Stevenson
> > Sent: Friday, 31 December 2010 9:30 a.m.
> > To: personal_submersibles@psubs.org
> > Subject: Re: [PSUBS-MAILIST] Regulat
> >
> > I just want to second the endorsement of Apeks SCUBA regulators. I have
> > used many different makes and models over the years, and the Apeks are the
> > only ones I never regretted purchasing. I have several DS4's and a couple
> > of the newer ones, and will no longer buy anything else.
> >
> > -Sean
> >
> >
> > On 30/12/2010 12:15 PM, Emile van Essen wrote:
> >
> > Hugh,
> >
> >
> >
> > You mean the dive tank regulators right ?
> >
> > They reduce the pressure to about 10 Bar over ambient. If you have them
> > inside, You cannot blow tanks when you are deeper than 100 Metres (=10 Bar)
> >
> > So better store tanks an regulators outside on a 1ATM sub.
> >
> > For oxygen no difference but store outside saves room inside?
> >
> >
> >
> > I Like the Apeks DS1 or DS4 but any rugged and common regulator will do the
> > job.
> >
> >
> >
> > Emile
> >
> >
> >
> > _____
> >
> > Van: owner-personal_submersibles@psubs.org
> > [mailto:owner-personal_submersibles@psubs.org] Namens Hugh Fulton
> > Verzonden: donderdag 30 december 2010 20:53
> > Aan: personal_submersibles@psubs.org
> > Onderwerp: [PSUBS-MAILIST] Regulators
> >
> >
> >
> > Placement of regulators and choice of them.
> >
> > For Air and oxygen. Is it best to have the regulators inside or outside the
> > pressure hull? I noticed that some have the regs outside and others inside.
> >
> > What brand/models have people found the best? Hugh
> >
> >
> >
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>
>
>
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