KISS Classic with VR3, URM & Shearwater - True redundancy

lizardland

I do too, which is why I can't decide whether or not to leave the Shearwater on my CK or go back to the Jetsam displays. Triple redundant but unreliable system vs. no redundancy but reliable system.

There's an old cliché about a man with two watches... In about 12yrs of trimix diving I've only just started using a trimix computer. I can't help thinking, yeah it's good but I can guess the profile to within a few minutes with no software so I'm wondering why I've got the computer (well... it was a bargain). I freely admit that I'm a Luddite but the mush between my ears has a pretty good instinct for what the profile should be. It's not very scientific but I like being able to rely on that. Technology is no substitute for developing good instincts, especially on a rebreather.

Cheers,

Stuart

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vidodivr

Keep in mind, everything is relying on the fisher connectors that love to corrode! You can be all fine and dandy with your double whatever and if that fisher on the kidney gets corroded you're screwed with both.

I think the best redundancy for CK I've seen so far is having a hud wired through the left side port.

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CK #087, Narked@90 stand, URM

Dutchy

Why don't you do both? Have your shearwater AND one Kiss display.

Or Have three displays and run your pursuit of one cell as another load?
Or two Kiss displays and the pursuit having the third all by itself?

There are a lot of options if you realise that the pursuit can be connected to a cell that allready has a display on it.

Is it a concious decision to do one or the other?

Cheers,
Rene

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cameron

But don't you still have the issue with paralleled circuits? If you plum the HUD into the head a la shearwater HUD, you are essentially giving up your true redundency. It is better then the fischer thing but not ideal... IMHO

I agree. I don't buy into the dual computer thing, or the integrated deco on both displays. Too much computer complication for something that every diver should be able to do in their heads with some experience and some tables.

I for one will leave all the electronics on the Rebreather for reading and delivering PPo2 information.

Cam

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lizardland

My Shearwater is a GF, I don't know why but it won't calibrate on one cell. I've asked Bruce and he is as stumped as I am. That was my plan, GF on one cell, two displays to complete the triple set.

But then my thinking comes back around to why not run the GF as a standalone, go back to the triple displays -- I trust myself to maintain a setpoint to dive tables so why shouldn't I trust myself to run a setpoint for a fixed PO2 computer? Like I said, I'm a luddite.

__________________
Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you?

www.westons-cider.co.uk

Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler