Two Questions About My Suunto Vyper

[SeaJay]

When printing from the log book, I see that some of my dives have the mark, "Attention" at the very beginning of the dive.

The mark shows up on the graph the moment I step foot in the water.

Why am I getting this mark? What does it mean? I have not seen the "common denominator" with all of the affected dives.

Second question: I've printed a log book... All of my dives have the box checked that says, "Tissue Pressures Invalid." What does this mean, and what do I have to do to get "valid" pressures?

The owner's manual and online help don't do much to answer these questions.

Very confusing... Does anyone here have answers? Thanks in advance!

 

[scubasean]

I've only gotten that mark on a second or later dive when I've ascended too fast, or violated the 15ft/3min safety stop that it likes a diver to do.

As for the tissue data being invalid, do a "calc" prior to printing and it will recalc the tissue info and uncheck the box.

Cheers,

Sean

 

[Genesis]

comes up if the "attention symbol" (an "!" in a triangle) was lit when you went in the water for your repetitive dive.

It will first appear when the computer goes into repetitive mode (10 minutes after you exit the water) if its going to show up.

It will clear, typically, in 45 minutes to an hour and a half, depending on how mad the computer is at you.

Now, what does it mean?

Suunto says it means that you have a higher risk of microbubble formation if its lit. It comes from the RGBM computations internally.

Realistically, you will see it lit IF:

1. You violate the ascent rate.
2. You dive deep.
3. You do "minimum" stops and approach the maximum ascent rate, even if all is technically ok, on a deep dive.

In these cases the computer wants you to extend your SI. If you don't, it will penalize your bottom time slightly and REALLY penalize you if you violate the ascent rates on a repetitive dive, up to and including nailing you with a mandatory stop (STOP is lit before you get to 19' on ascent, and/or the CEILING indicator shows up.)

I've found that I can keep the "!" at bay with slow ascents, a deep stop for one minute at half of maximum depth, and extending the 3 minute 15' stop to 5 minutes, plus making sure my final ascent is VERY slow (2 minutes or so to ascend the final 15'.)

Even so I get them occasionally for no discernable reason. I review the profile later and can't figure out why its upset with me, but there you have it.

If you're allowing an hour between dives you shouldn't see this often; if you're trying to squeeze in a second repetitive dive in quickly, then you are at higher risk of having it be "active" when you go back in the water.

The "tissue pressure invalid" thing is only in the SDM log program; click the CALC button to "fix" it.

 

[SeaJay]

That's kinda crappy.

Furthermore, why is it not explained in the owner's manual? I mean, they cover so much pointless stuff in there... Why not include the important stuff?

The software is very good... But it could still use some work, apparently. Shouldn't it "calculate" my tissue pressures on it's own? Shouldn't it know these already? Isn't that the point of wearing the computer? Why do I have to "calc" it later? Seems silly...

Having an "attention" symbol on there, but not knowing why... That's horrible.

 

[LUBOLD8431]

I was just checking thru my manual, and I came across something.
First, Seajay, do you have the old Halcyon webbing, or the New Webbing with the blue H's all over it???

Some VYPER's are strictly DIR. They will also make you aware of any problems with your gear config by giving you the attn symbol. I think this is a clear violation of not having the appropriate Halcyon webbing. Please go buy it immediately, before you hurt yourself...

P.S.--> Oh, I thought of another thing, you aren't using a Pioneer wing, are you? The Vyper's sometimes will give you a warning if they detect a pinhole leak. You might want to check your wing. ALso, there is an alternative. Oxycheq.

LOL...


P.S.--->> Oh, one more thing. You arent mixing old and new Halcyon logo's are you???? That might be it too. You should really syncronize your logos. Go with all the NEW logo's.

Seajay, Im surprised you didnt know that the Vyper is a very intuitive computer. Good Luck... I would be interested to know what solves this issue...

 

[scubasean]

ROFLOL

 

[metaldector]

Yes, I get the Attention notation on some of my printouts. I too couldn't figure what this meant. I searched the manual and only found it mentioned on page 47, but no explaination. In doing a search for "Attention" in the software I found the following statement "Dive Attention Mark as described in the dive computer user manual." So there you have it a perfect Catch-22! Anyway, thanks Genesis for the info. I'm going to print your explaination and put it in my owners manual.

 

[Genesis]

The "diver attention" symbol IS explained in the owners manual as a warning of "excessive microbubble" potential.

What's not explained, exactly, is what causes it to turn on. My observations are based on ~100 dives with it and how it tends to behave - what causes it to light and not, learning how to keep it unlit, and what it does to you if you dive with it on anyway.

One thing to be aware of is that the Suuntos will violate the ascent-rate limits on as little as a 5' "pop-up" from 110-105'! So if you swim over a rock or obstruction on a wreck, you can get nailed with a profile violation and have a nice "STOP" show up on 'ya!

 

[Cave Diver]

Genesis once bubbled...
One thing to be aware of is that the Suuntos will violate the ascent-rate limits on as little as a 5' "pop-up" from 110-105'! So if you swim over a rock or obstruction on a wreck, you can get nailed with a profile violation and have a nice "STOP" show up on 'ya!

While you can't argue safety, it seems from all the posts I've seen on the Suuntos that they might be a little too conservative.

Opinions anyone?

 

[mer]

There's been a couple other threads out there on this topic:

http://www.scubaboard.com/showthread.php?s=&threadid=32407
AND
http://www.scubaboard.com/showthread.php?s=&threadid=14078

As these threads say, there is very little documentation about this extend SI warning and DA alarm: the manual mentions excessive microbubbles and the website FAQ merely gives a one sentence explanation.

Is there anyone from Suunto on SB who would be willing to provide us more insight?? (pretty please)

Contrary to Genesis, I haven't had this issue with my deeper dives... it's mostly been VERY shallow dives and since I changed the sampling rate. Granted I have fewer dives on my computer than Genesis - about 35. I very much agree about the Vyper getting pissy when you violate the ascent rate - but I've found that it displays this warning/alarm even without an ascent alarm on what would normally be called "uber easy" dives.