mk1 ZH-L16 GF vs no GF

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Antoine
Posts: 25
Joined: 11 Mar 2009, 08:56

mk1 ZH-L16 GF vs no GF

Post by Antoine »

Hello,

I dove yesterday and since I was using air, I was in ZH-L16 OC. My back-up was a suunto Vytec DS.
Between the two computer I have 10 min deco difference.
Suunto: 2 min at 3 m
mk1: 2 min 12 m
2 mn 9 m
2 min 6 m
5 m 3m

For a dive at 42 m max, I was a bit surprised by the deco of the OSTC.

I dove with the OSTC in ZH-L 16 GF OC and I did not see such behavior, in 85/85, it is quite close to the Suunto.

Does one of you can explain such behavior ?


The firmware is 1.60 and other parameters are standard.

Antoine
By the way, Zugersee is f****ng cold :D
Steve
Posts: 94
Joined: 15 Apr 2009, 13:09

Re: mk1 ZH-L16 GF vs no GF

Post by Steve »

wierd
how long was your bottom time?
normally suunto has a higher conservatisme. And I don't think you can lower your conservatisme on a vytec?
I know you can with the Helo.

did your gas settings match? Maybe vytec still on NX 28 or something like that?
Steve
CMAS 2* Instructor
CMAS Advanced Nitrox Instructor
Belgium
Antoine
Posts: 25
Joined: 11 Mar 2009, 08:56

Re: mk1 ZH-L16 GF vs no GF

Post by Antoine »

Hi,

Both computers where on air and the Suunto is in moutain mode (first level). Profil is V style and I was at 43 m deepest at 17 min.

On a french speaking forum, same behavior was also reported.

For the moment I will switch to GF and enjoy the skull when I will use air :D

Antoine
Antoine
Posts: 25
Joined: 11 Mar 2009, 08:56

Re: mk1 ZH-L16 GF vs no GF

Post by Antoine »

From various readings on the forum, I have the feeling taht ZH-L16 without GF for OC is bugged or acting like it was with GF. Do people of HW have a comment on that ?

Antoine
Olivier
Posts: 59
Joined: 18 Sep 2008, 14:39

Re: mk1 ZH-L16 GF vs no GF

Post by Olivier »

Antoine Wrote:
-------------------------------------------------------
> From various readings on the forum, I have the
> feeling taht ZH-L16 without GF for OC is bugged or
> acting like it was with GF.

Do you mean that particular forum we are chatting on? I don't see what you're talking about...

I mainly dive with ZH-L16 and believe me, behavior is not the same as a dive with GF. Most of my dives are 70m - 15min, and the first decostop is at 12 or, rarely, 15m. Unless you dive with 80-80 or 90-90 GF, you can't expect such a behavior with GF.
heinrichsweikamp
Posts: 4467
Joined: 13 May 2007, 18:07

Re: mk1 ZH-L16 GF vs no GF

Post by heinrichsweikamp »

Hi all,

We're very busy putting the 1.70 ready - and yes, the 1.65beta is buggy with the gas changes!

Regards,
Matthias
nicolas schreyer
Posts: 53
Joined: 19 May 2008, 20:47

Re: mk1 ZH-L16 GF vs no GF

Post by nicolas schreyer »

to be honnest, I do meet the same behaviour with my MkII...

Yestrday, dive on 49m with air, ZH16-L OC, I don't remember exactly, but max 10-12 minutes between 40 and 49m, then slowly go up...

Cressi Archmede 2: 3min/3m
OSTC MkII: 1min/12m 1min/9m 2min/6m 5min/3m...
heinrichsweikamp
Posts: 4467
Joined: 13 May 2007, 18:07

Re: mk1 ZH-L16 GF vs no GF

Post by heinrichsweikamp »

With the 1.70 you'd get:

11min@49m:

2min @ 6m
5min @ 3m

Regards,
Matthias
gorcio
Posts: 187
Joined: 02 May 2010, 22:20

Re: mk1 ZH-L16 GF vs no GF

Post by gorcio »

heinrichsweikamp Wrote:
-------------------------------------------------------
> With the 1.70 you'd get:


Does that mean that 1.70 is ready and will be made available soon ? I am looking forward to it.
Kind regards,
Gorcio, OSTC MK2 828
heinrichsweikamp
Posts: 4467
Joined: 13 May 2007, 18:07

Re: mk1 ZH-L16 GF vs no GF

Post by heinrichsweikamp »

Yes, we'll upload it tomorrow. Just a few more tests in the pressure chamber.

Regards,
Matthias
Steve
Posts: 94
Joined: 15 Apr 2009, 13:09

Re: mk1 ZH-L16 GF vs no GF

Post by Steve »

great
will download it and try it out saturday
i'll try to make comparison with suunto

grz,
Steve
Steve
CMAS 2* Instructor
CMAS Advanced Nitrox Instructor
Belgium
wrobell
Posts: 105
Joined: 28 Jan 2009, 16:28

Re: mk1 ZH-L16 GF vs no GF

Post by wrobell »

i tried fast (the speed change is great!) simulation
with nitrox 29 - 31min at 36m, 6m last deco stop,
gf 20/90:

1min @ 12m
3min @ 9m
0min @ 6m (sic! :))
14min @ 6m

but when performed with real time simulator
then at least one deco stop 1min @ 15m
is displayed.
Antoine
Posts: 25
Joined: 11 Mar 2009, 08:56

Re: mk1 ZH-L16 GF vs no GF

Post by Antoine »

I tested few minutes ago with 1.70 and behavior was the one expected. I hope I will be abble to test it soon underwater.

Antoine
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