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gas list depth for first gas

Posted: 22 Sep 2011, 19:40
by Davwardo
Hi there

Probably a silly question but...

For the deco gases ( not first gas ) you set them as active AND also set the depth you want to switch to it in the ' change ' field.

For the First gas, the change field is defaulted to 0.

So for 25% NX backgas and 50% for deco ( where I want to switch at 21m ) I see:

G1 : * NX 25 in 0m
G2 : NX 50 in 21

Can you confirm this is correct. if so, how come the change is set to 0 forth back gas?

Cheers, Dave

Re: gas list depth for first gas

Posted: 22 Sep 2011, 21:56
by tiefunten
That's correct. Don't know the reason for this change, but it makes sense as you are normally breathing the backgas right from the surface.

Re: gas list depth for first gas

Posted: 23 Sep 2011, 00:02
by Davwardo
cheers!