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When diving with trimix and using CF52 to show the tissue graph under water, you will see the tissues state of saturation for both N2 and He.
After the dive however, there is never any N2 shown in the tissue graph when pressing the right button, only He.
Surely there must be N2 build-up in the tissues as well as He after a dive, unless I’m using Heliox?

I have been a bit puzzled over the presentation on the “home screen” but this is the first time I have checked the tissue graph under water using CF52 and noticed the difference.

/anders

No one but me reflecting over the N2-display in the tissue graphs after a trimix dive?

Absolutely not a very important issue, but do I miss something here or is it perhaps a small bug?

/anders

Hi,

I look at the diagram often, and yes: There should be N2 load visible (And there is) when N2 was involved in your gases. My first guess was, that the diagram updates only every minute but it also updates manually when selecting it. Can you post the dive details of the dive where you don't see the N2 load? Download it with OSTCPlanner or OSTCTools and post it here so we can have a look. Unless you're using Heliox or in very shallow dives there always is some N2 load visible in the screen.

regards,
Matthias

Hi Matthias.

My question is about the tissue graphs presented on the "Main Screen" after the dive, during surface intervals.

I often dive 60m+, using Tx15/50 in CCR-mode and I have used Tx in OC to the same depths as well, but I have never seen any N2-saturation being displayed in the graph during the SI following the dive, only He.

I've been using the OSTC for two years now, allways using the latest update and I remember I was puzzled by the display already after my first Tx-dive...
There is only N2 displayed after an Air-dive (naturally) and only He after a Trimix-dive. I mean, there must be both after a dive using Trimix.

The reason I brought this up now, was that I saw booth graphs in action during my last dive. Under water, both N2 and He was displayed...


/anders

boefst Wrote:
> There is only N2 displayed after an Air-dive
> (naturally) and only He after a Trimix-dive. I
> mean, there must be both after a dive using
> Trimix.

I just returned from a week of TMX diving (With 17/30 and similar) and there always was N2 load visible (After the dive) as expected.

regards,
Matthias

anders,

is it possible you are conducting your deco with o² or at least a high percentage of it?

so it should be fairly normal, especially in ccr mode, to even decrease your n²-saturation in certain tissues.

is this a solution to your question?

regards
ewatsch

Good point...
I did deco on O[sub]2[/sub] when diving Tx on OC, and I’m using a high fraction of O[sub]2[/sub] on my CCR-deco.

Hi there.

I dove my new N2 during a Red Sea holiday and I saw something I could not explain regarding the tissue graph in surface mode (I did not use it in diving mode):

While the diagram for N2 showed approx 85 the digit value was approx 117%.

The used gas during all dives was a NX28.

I have guessed that the digit value is identical to the highest bar graph. Am I wrong or is there a small bug?

FW: 2.50

Regards
Holger