• Welcome to ScubaBoard

  1. Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

    Benefits of registering include

    • Ability to post and comment on topics and discussions.
    • A Free photo gallery to share your dive photos with the world.
    • You can make this box go away

    Joining is quick and easy. Login or Register now by clicking on the button

PLBs Can Save Your Life

Discussion in 'Training, Practices and Equipment' started by letterboy, Mar 19, 2019.

  1. DandyDon

    DandyDon Old men ought to be explorers ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: One kilometer high on the Texas High Plains
    48,402
    4,202
    113
    Sorry, I got mine 4 years ago, and my memory is a joke.
     
  2. tridacna

    tridacna ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: New Jersey
    5,623
    2,652
    113
    I used to hand-tighten it snugly. After diving, I would struggle to open it by hand. It bothered me that if I ever needed to open it on the surface, I would struggle mightily to get the EPIRB out. I now use a Light Monkey canister which works flawlessly. Expensive but superbly engineered.
     
    Lorenzoid and outofofficebrb like this.
  3. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Lake Jackson, Texas
    5,440
    3,009
    113
    On my 1985 M6 yes. But on my 2013 X5, it has oil level gauge on the instrument panel.

    I place my PLB1 right after testing it on the liveaboard. So it hasn’t been in the canister for more than 2 weeks. I did check it at depth once and posted the picture here once. Also I calibrated how much o-ring compression I need to put on the lid and open it after a dive to make sure I can open it with my wet hand.

    The best PLB1 case is still the one with a latch & hinge like my old $10 camera case that I got from eBay. No unscrewing lid is needed in that kind of case.
     
    tridacna likes this.
  4. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Lake Jackson, Texas
    5,440
    3,009
    113
    Yesterday I pulled out my PLB1 canister from my BCD pocket and open it after 6 days of total 20 dives. No problem. All dry inside.

    E2ADAFCB-6869-49A1-A9F5-427461166902.jpeg
     
  5. -JD-

    -JD- Eclecticist ScubaBoard Supporter

    # of Dives: 50 - 99
    Location: Greater Philadelphia, PA
    361
    194
    43
    Thanks, OOB! Looks like there is a circumferential compression oring which forms the seal on that. I didn't know that the lock ring is separate.

    Definately interested to hear your after-action report.
     
  6. DandyDon

    DandyDon Old men ought to be explorers ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: One kilometer high on the Texas High Plains
    48,402
    4,202
    113
    He answered my email. Here is the label. Now I do not know anything about what all that means or how to find the same one without having to order 50 (my computers have both used the same o-ring for years thru many battery changes as I didn't want to buy a gross!), but surely someone here will know!

    Actually, I started a separate thread, so discussion will probably work better there: https://www.scubaboard.com/community/threads/hdvseatek-o-rings-identified.585033/

    Hdvseatek O-ring.jpg
     
    Tug and outofofficebrb like this.
  7. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Lake Jackson, Texas
    5,440
    3,009
    113
    @foob bought my prototype Acrylic canister and it seems to fit well to his ACR, as shown below.

    1918227C-5217-4008-8627-FAE72C6E7C1C.jpeg

    I’m wondering how do you mount this kind of PLB to keep the antenna straight up to the sky for 24 hours. You certainly won’t hold it up by hand all day long while bobbing at the surface, would you?

    PLB1 comes with shoulder strap like this, below.

    06639F28-0C4C-41E7-AACD-787A7D17DA66.jpeg
     
  8. DandyDon

    DandyDon Old men ought to be explorers ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: One kilometer high on the Texas High Plains
    48,402
    4,202
    113
    My ACR 2881 came with a velcro strap, and I guess the newer ones do as well. Did he remove his for some reason? I think that's a bad idea.
     
  9. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Lake Jackson, Texas
    5,440
    3,009
    113
    Made 40 dives down to 137’ (42m) to meet those Mola Mola (below) and no leak so far. :D

    3B40EC03-D1AB-43E2-967B-D81D52E7BE4B.jpeg
     
    DandyDon, Jay, divinh and 1 other person like this.
  10. Backflop

    Backflop Garibaldi

    # of Dives: 25 - 49
    Location: Los Angeles, CA
    2
    3
    3
    I found the ffsystem.co.uk PLB container on a different board, but thought that the folks here might appreciate the info as well. It's as an interesting option for those looking for a burly middle-to-higher end option: they're hand machined from solid delrin rod with two stainless latches and two o-rings (one axial seal, one radial seal). Construction-wise it seems pretty similar to the Light Monkey canisters I've seen, and I have no doubt they'll exceed most recreational ranges without a leak. At 100GBP (~$130) each, they seem like a great value.

    Note though, that these things are big. At 175mm tall and 83mm diameter (6.9" x 3.3") and 900g (~2lbs), they're more comparable to the McMurdo fast find canister than the HDVSeatek or Custom Divers options. If you've got a 20oz insulated tumbler, they're almost the exact same size. It isn't a tiny little thing you can throw anywhere - it's a planned piece of kit. I thought I'd stuff it into a pocket with my DSMB and spool, but they just barely all fit together into a DGX Horizontal pocket, and are hard to remove once in. This will live on a belt for me, but my dive buddy will likely require convincing to wear hers .

    Usable interior dimensions are 122mm deep and 62mm across (4.8" x 2.44"). It fits my PLB1 with the float case on it easily, with room for candy bars, water, keys, cash, and more. Somewhat surprisingly, they're also just about neutral in freshwater - <50g floaty.


    IMG_2266.jpeg IMG_2272.jpeg IMG_2271.jpeg IMG_2267.jpeg IMG_2270.jpeg
     
    DandyDon and Dan like this.

Share This Page