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Do you check your gas for CO?

Discussion in 'Basic Scuba' started by tna9001, Apr 2, 2021.

Do you check your gas for CO?

  1. Yes

    20 vote(s)
    22.7%
  2. No

    65 vote(s)
    73.9%
  3. What's CO?

    3 vote(s)
    3.4%
  1. rob.mwpropane

    rob.mwpropane Contributor

    1,669
    1,028
    I'm missing something. Is there something wrong with what @Curious_George posted a link to? I'm looking to get one soon for my compressor and this is what I had planned on.

    Inspector (CO) INS2-CO-01

    I know there have been a few people on SB who like them.
     
  2. CanadaDan

    CanadaDan DMC ScubaBoard Supporter

    # of Dives: 100 - 199
    Location: Winnipeg, MB Canada
    397
    407
    I had missed the price. Good deal even if you have to replace the entire unit every couple of years (no serviceable battery or sensor).

    Also, as far as I can tell, these are atmospheric units so you have to bag the whole unit and fill the bag from the cylinder or rig up a tube system similar to the calibration rig. The scuba centric units take readings straight from the cylinder, a little handier if your on a rolling boat checking new tanks from a shore side delivery (Cozumel cattle boats etc).
     
  3. Cdncoldwater

    Cdncoldwater Contributor

    # of Dives: 100 - 199
    Location: Atlantic Canada
    230
    146
    Currently I only get my tanks filled by one company and they have sensors on their compressors, so I don't test. I have debated on buying a tester but don't currently have a "need" to do so. I do own my own for EANx though.
     
  4. tridacna

    tridacna ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: New Jersey
    7,553
    4,873
    Can’t believe that @DandyDon has not entered this conversation. Your cue maestro!
     
  5. rob.mwpropane

    rob.mwpropane Contributor

    1,669
    1,028
    I want to think (hope) that I'll be able to 3D print an adapter to fit on it and put it up to the tank. I can't imagine it would be too difficult, but I don't know how the device works either. I'm thinking something like what comes with the Expedition. Something like this;
    Gas Difuser by plexer

    In reality, I'd probably never take it on a boat, it would just stay with the compressor. Would still be nice to use it on individual tanks. @rhwestfall has his tied inline, that's pretty nice.

    Whatever happens, I know I'm not spending $400 on an analyser:)
     
  6. BoltSnap

    BoltSnap Dive Charter

    # of Dives: I'm a Fish!
    Location: Nomad
    6,744
    2,800

    I use the ANALOX EII CO detector. The sensor lasts for more than 4+ years for sure if you take care of it.
     
    Johnoly likes this.
  7. BoltSnap

    BoltSnap Dive Charter

    # of Dives: I'm a Fish!
    Location: Nomad
    6,744
    2,800
    1ppm is still below the error range for CO detectors. Anything 3ppm or less is OK. The limit in the UK is 5ppm and the US is 10ppm which is way too high. Your breath as a non-smoker will show somewhere around 2ppm. A smoker I have seen it, >8ppm and as high as 17ppm.
     
  8. kelemvor

    kelemvor Big Fleshy Monster ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Largo, FL USA
    7,149
    4,200
    Not in my tank. I would not dive any tank with greater than zero. The reading was consistent. When I got it, I tested all 12 of my tanks. One tank consistently scored 1ppm. The other 11 scored zero. It definitely had CO in it. You can dive 3ppm CO all day long if you like. I won't be doing that ever.
     
  9. BoltSnap

    BoltSnap Dive Charter

    # of Dives: I'm a Fish!
    Location: Nomad
    6,744
    2,800
    I am concerned now, he hasn't said anything here so far. Where is he? I hope that he is OK. Can somebody check on him??? This can't be.
     
    Jayfarmlaw and tridacna like this.
  10. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    6,020
    3,872
    Yes & No re CO testing.
    Yes: I test every tank I pump air/Nitrox into from my compressor.
    No: I do not test commercial operators air.
     

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