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  1. #111
    TDF Member
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    Quote Originally Posted by bottle maker View Post
    Revo is that the unit Chasey had after his Kiss?

    Graham
    think it was then he sold it for the JJ

  2. #112
    Established TDF Member Doomanic's Avatar
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    Iím on holiday so havenít been paying full attention but do I understand correctly that with 5 cells and a 6 month switching routine youíre going to be running cells that are up to 30 months old?
    Quote Originally Posted by Chrisch View Post
    Seriously, forget about sidemount - it's bollocks.

  3. #113
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    Would it also make sense to change any weak/duff cells as necessary?

  4. #114
    Established TDF Member Paulo's Avatar
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    Quote Originally Posted by Wibs View Post
    Would it also make sense to change any weak/duff cells as necessary?
    Fuck me!!

    Who certified you?

    Surely this is a wind up?
    Seemingly I am a wannabe JJ wanker

  5. #115
    Gone diving back later Vanny's Avatar
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    Must be the benefit of having 5 , you can leave all the knackered ones in there, bonus.

  6. #116
    Coastal Member dwhitlow's Avatar
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    Quote Originally Posted by Wibs View Post
    Would it also make sense to change any weak/duff cells as necessary?


    If a cell is not trusted it should be removed. The only cell worse than no cell is an unreliable cell.

    People have died because they relied on cells that were not reliable (visualise CCR at 50m continuously injecting oxygen and extrapolate). Don't join them as it upsets a lot of people and creates a lot of paperwork.

    Better to not dive due to lack of cells that to die because of unreliable cells. Nothing underwater is worth dying for!
    Last edited by dwhitlow; 23-07-2020 at 11:15 PM.

  7. #117
    Last of the Mohicans gobfish1's Avatar
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    Quote Originally Posted by Wibs View Post
    Would it also make sense to change any weak/duff cells as necessary?
    Don't want to see you keep getting hammerd over some of your post . ( You should be enjoying and learning not defending each post)

    When you say weak or duff what are your talking about . If you have a cell that's a bit slower than all the others but gets there would you call that a duff cell . And should that worry you when you have a total of 5 cell to run with .

    Also can you turn off the selonoid on your unit and fly it of the nerd and the green button . Ps if you can only isolate the selonoid by closing your O2 then you have a problem with your independent back up nerd . Ie bottle neck at the O2 side of things
    5 cell s are not going to help if the units reads low O2 and kicks in the selonoid pushing your po2 up . Or it jams open . Or a trickle feed problem.

    Whats the preseved thinking / training for that on your unit . ( AP say feather the O2 valve but in practice it's shit and I personally do something different to solve that problem) yes you can plug in your deco bail out what ever that my be. Another bollox work around In real life .

    Also what's the training on testing the selonoid pre dive and during dive . it's there as a back up failsafe so you need to known it's capable during your dive . Yes ?

    Not criticising just interested to know how you isolate each potential problem test it or work round it

    Had my old ap unit set up so I could turn the thing off isolate the O2 . And still fly it home. As long as I had good working cells, ( of course)
    Last edited by gobfish1; 24-07-2020 at 10:56 AM.
    None diver as of 2018.

  8. #118
    Established TDF Member
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    Quote Originally Posted by Doomanic View Post
    ... do I understand correctly that with 5 cells and a 6 month switching routine you’re going to be running cells that are up to 30 months old?
    Quote Originally Posted by Wibs View Post
    Would it also make sense to change any weak/duff cells as necessary?
    A short English comprehension test follows for the baying mob...

    Could that have been a rhetorical question clarifying @Doomanic's inference that ignored replacement of "weak/duff" cells?

    Lets see...

    Quote Originally Posted by Paulo View Post
    Fuck me!!

    Who certified you?

    Surely this is a wind up?
    Obviously everything has to be taken as literal as you ass-u-me that everything written by me is invalid.

    But the craic is good.
    Last edited by Wibs; 24-07-2020 at 07:34 AM.

  9. #119
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    Cells and replacements.

    This document "Understanding oxygen sensors" explains the reasoning and data modelling behind 5 sensors and fully redundant electronics. The section "General recommendations for using sensors" is pertinent.

  10. #120
    Established TDF Member Doomanic's Avatar
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    I wouldnít even think about running a cell over 18 months old, never mind one pushing 30, no matter how it was behaving. Having redundancy is only any use if you can trust it.
    Quote Originally Posted by Chrisch View Post
    Seriously, forget about sidemount - it's bollocks.


 
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