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5 January 2012, 08:32 AM | #61 | |
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5 January 2012, 09:27 AM | #62 |
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Wondering what mix you are breathing? Only He2 penetrates the watch under normal circumstances, when you opened the crown you let mix in at 188psi over ambient if the watch equalized. Don't know exactly how the DSSD He2 relief 'burps' but I suggest you leave the crown unscrewed during deco unless someone here is absolutely sure the He2 escape valve burps all gases.
A trick played on the newbies in chamber air bounce dive to 200+ was tell them their time was wrong, they were narc'ed somewhat and would usually comply and reset the watch; often their crystal would blow right off while surfacing. Certainly don't want that to happen to your DSSD! Best, A fellow diver
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5 January 2012, 09:53 AM | #63 | |
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Love this thread!
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5 January 2012, 01:00 PM | #64 | |
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In mechanical watches I would assume the increased drag could slow the balance especially when we talking about a 28,800 movement such as 3135's. In other equipment (such as ipad) if there is some small sub-unit that is unable to vent (on-gas/off-gas) and the pressure exceeds it's yield strength, that sub-unit (a capacitor, sealed battery, display unit) would fail perhaps causing failure of the whole system.
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6 January 2012, 01:02 PM | #65 |
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^^^ i was thinking about old sub movies and those tiefenmessers blowing up when dropping rapidly...
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24 April 2012, 08:06 AM | #66 |
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Hello there, in saturation at the moment and a bit bored so was going over my old threads. Did not realise so many questions had been posted after i put up photos!
In answer to some, yes the ipad screens do work on deco but as u get shallower little helium bubbles appear in it! Same as itouch sony psp etc. The mixture normally we breath is 98% helium 2% o2! The deepsea is fine, wearing it now! Adjusted the time with no probs! Lol! Do not usually unscrew crown in deco HEV is good enough. Apologies for resurrcting an old thread and for ot answering the questions sooner. Current storage depth 85m, seabed depth 94m, cheers
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24 April 2012, 08:26 AM | #67 | |
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Glad you resurrected your post because I missed it the first time. Very cool what you are doing. I am a recreational diver and can't imagine doing the kind of stuff you do. I was getting claustrophobic just thinking about living for 4 weeks in that little decon chamber.. Ewwhh! Stay safe!
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24 April 2012, 08:56 AM | #68 |
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only on TRF do people post from 400 feet under the ocean lol
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24 April 2012, 09:07 AM | #69 |
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Very few, most are afraid to wear a Sub in the rain. :) I know I am.
I'm ashamed to admit, my Sub C has only seen the 6 foot depth of my pool. But, I made sure I was in the deep end, I'm not a wuss! :) |
17 July 2012, 08:09 PM | #70 |
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Managed to find the MOST cool thread on TRF ever ...
Now on to some answers: - The crown was being sucked back into the watch as the internal pressure was less than the external. This shows that the watch is tight (water/air proof) and it is perfectly normal. - No matter how much gas (be it He, O2, N etc...) is then allowed inside the watch (by say unscrewing the crown) it will be expelled from the HRV (which does NOT expel only Helium, but any gas that happens to be inside the watch). - Once the internal pressure inside the case is higher than the external (say during deco) by an appreciable degree, the valve will be deployed by this same differential pressure and all will be perfectly fine again. I am just a common diver so have no use for HRVs etc. Still I'm sure that I'd reach for my 7c46 powered Seiko if I ever were to do Sat diving ..but I am sure the DSSD is quite capable ... Well done again aquanaut .... |
17 July 2012, 08:43 PM | #71 |
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very cool thread indeed....
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17 July 2012, 09:14 PM | #72 |
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17 July 2012, 10:44 PM | #73 |
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