Mk2 'Polish' Chrono-R2A

Discussion in 'General Airgun Chat' started by RobF, Nov 21, 2015.

  1. RobF

    RobF Administrator Staff Member

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    Was sent this a few weeks ago, it's the new version.

    Contact service@lmbr.pl for more details
     

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  2. Jezza

    Jezza Member

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    I think i prefer the older model, the sensors look a bit exposed to sun/florescent light too much on this one.
    Has anyone tried the other model?

    Ian
     
  3. RobF

    RobF Administrator Staff Member

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    They're infra red so they shouldn't be susceptible to that sort of interferance.
     
  4. Loomax

    Loomax New Member

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    I have got the old one and I am very happy with it. It is very consistent. I have compared it with my F chrony with lighting kit. Shooting through both chrony. Air chrony first and F chrony behind.
    Air chrony reads 13 FPS higher in all 10 shots but that it is ok, I will be more worried if it was reading less.
    The new style design will be fine to use dawn the range :shot:
    How much is the new one.
     
    Last edited: Nov 21, 2015
  5. Loomax

    Loomax New Member

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    I have got the old one and I am very happy with it. It is very consistent. I have compared it with my F chrony with lighting kit. Shooting through both chrony. Air chrony first and F chrony behind.
    Air chrony reads 13 FPS higher in all 10 shots but that it is ok, I will be more worried if it was reading less.
    The new style design will be fine to use dawn the range :shot:
    How much is the new one?
     
  6. verminator

    verminator New Member

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    FYI, Air-Chrony can be calibrated. Power off, hold button 3 down and keep it down while powering on. It should come up with:

    Gate/100
    21.65 ft

    Use button 2 to decrease the distance between sensors, this will lower the fps. Use button 3 to increase the distance.

    Press button 1 to resume normal operation.
     
  7. verminator

    verminator New Member

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    The sun puts out loads of infra red, use in strong daylight is a known problem with them.
    Still the increased vertical distance is a small improvement, IMO.
     
  8. RobF

    RobF Administrator Staff Member

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    Yeh I suppose. :) I've noticed people replacing the shiny batteries as well.

    How much do you need to move the gate measurement by for a 10fps shift?
     
  9. saddler

    saddler Phil Gee

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    Is that how they are supposed to be held?
    I can see us having trouble appointing a BFTA chrono holder... :D
     
  10. verminator

    verminator New Member

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    I think its around 1 click per fps, so approximately 10. Best way is trial an error shooting through 2 chronographs simultaneously, one of them being a good reference.
     
  11. Ceathreamhnan

    Ceathreamhnan WHFTA Champion 2013

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    When I took the (original supply shiny Carrefour) pair of AAs out of mine recently they had only a volt or so in them, so it does work down through the battery's nominal floor.
    Does the rest of the chrono look any different Rob? Potentially I could re-work mine to look like that, or make a new casing.
     
  12. RobF

    RobF Administrator Staff Member

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    ta... i've got 2 of these, the later one is the one reading high...
     
  13. RobF

    RobF Administrator Staff Member

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    dunno, haven't got one yet... mine's still surviving, but if i keep hitting it, i might be on one of these earlier...
     

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