Clarification on CF18 and CF46

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Iglooz
Posts: 44
Joined: 30 Aug 2011, 11:43

Clarification on CF18 and CF46

Post by Iglooz »

Hello,

I've been asked for clarifications on CF18 and CF46.
Apparently the CF docs (at least English and French version) are not clear on the subject and need more explanations...

My understanding :
CF18 [0..1.6] has 3 effects :
* during gas configuration CF18, is used to compute the MOD according gas O2%
* during dive the current ppO2 is displayed or hidden according to this value
* for gas changes, gas that would lead to a ppO2 over CF18 are display in red in the gaslist
=> If set to 0, the ppO2 is always displayed but the MOD are stupid


CF46 [1.0..1.61] has also 2 effects :
* during gas configuration it changes the color of the ppO2 displayed along to the change depth if the ppO2 max is over-passed at that depth.
* It turns into the alarm color (red by default) the ppO2max if over-passed at the current depth.

if CF46<CF18, the current ppO2 is display directly in alarm color even if lower than CF18

Am I right ??
Are there any other effects of these params ?

Iglooz
OSTC 2N #2755
6RiL
Posts: 37
Joined: 22 Aug 2012, 09:14

Re: Clarification on CF18 and CF46

Post by 6RiL »

Hello,

I think "during dive the current ppO2 is displayed or hidden according to this value " is done by CF19 and not CF18.

6RiL
heinrichsweikamp
Posts: 4469
Joined: 13 May 2007, 18:07

Re: Clarification on CF18 and CF46

Post by heinrichsweikamp »

CF19 sets the threshold to show the ppO2 during the dive.

The CF18's threshold is used for MOD and the warning flag in the dive profile.

CF46 is for color-coding the ppO2 in gaslists or during the dive.

regards,
Matthias
Iglooz
Posts: 44
Joined: 30 Aug 2011, 11:43

Re: Clarification on CF18 and CF46

Post by Iglooz »

Understood !!

Thanx for your help
OSTC 2N #2755
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