Do you need a damp meter ?

Discussion in 'Motorhome Chat' started by Jaws, Feb 2, 2013.

  1. Jaws

    Jaws Funster Life Member

    Joined:
    Sep 26, 2008
    Messages:
    18,321
    Likes Received:
    21,598
    Location:
    Narrfoook
    • Like Like x 1
  2. DP_JAY

    DP_JAY Funster Life Member

    Joined:
    Mar 17, 2010
    Messages:
    1,797
    Likes Received:
    1,022
    Location:
    Cark, Cumbria
    Last edited: Feb 2, 2013
  3. Hayleylulu

    Hayleylulu

    Joined:
    Feb 17, 2008
    Messages:
    5,392
    Likes Received:
    3,889
    Location:
    Full timing in the van
    Iv tried a damp meter on my head and it came up with damp so I don't trust them I also tried it on my underpants and it came up that there was damp there as well :Rofl1::Rofl1::Rofl1:
     
  4. keith

    keith Funster

    Joined:
    Aug 25, 2007
    Messages:
    3,258
    Likes Received:
    1,612
    Location:
    Ecclefechan
    A question then. How can a meter read through the vinal covering when the Vinal is resistant to water? I can understand it being able to read moisture in bear wood but cannot see how it can detect damp through a plastic covering.
     
  5. DP_JAY

    DP_JAY Funster Life Member

    Joined:
    Mar 17, 2010
    Messages:
    1,797
    Likes Received:
    1,022
    Location:
    Cark, Cumbria
    Exactly, the pin type ones can't which is why you need a contactless one.
     
  6. pappajohn

    pappajohn Funster Life Member

    Joined:
    Aug 26, 2007
    Messages:
    29,452
    Likes Received:
    16,883
    Location:
    YO11 2BD
    shouldnt that bethe other way round ?

    the pin type will puncture the vinyl and detect damp in the substructure whereas the contactless type will only show damp on the vinyls surface as it wont contact the substructure
     
    • Like Like x 1
  7. jonandshell

    jonandshell Funster

    Joined:
    Dec 12, 2010
    Messages:
    5,253
    Likes Received:
    7,858
    Location:
    West Norfolk
    The pin type will get a reading on vinyl covered surfaces if you press hard enough!

    Top tip! Do this in a place that won't be obvious! Around window frames and in corners is where you test anyway!:BigGrin:
     
  8. DP_JAY

    DP_JAY Funster Life Member

    Joined:
    Mar 17, 2010
    Messages:
    1,797
    Likes Received:
    1,022
    Location:
    Cark, Cumbria
    There is a clue in the name, you can get a reading WITHOUT contact!
     
  9. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Last edited: Feb 2, 2013
  10. jonandshell

    jonandshell Funster

    Joined:
    Dec 12, 2010
    Messages:
    5,253
    Likes Received:
    7,858
    Location:
    West Norfolk
    Still not sure how a capacitive sensor is going to accurately read through a non-permeable surface Jim!

    We use 'em as deadman switches on our order-pickers. Wear rubber gloves and they barely work!
     
  11. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Hear what your saying.. no personal experience, only going by what I read, perhaps the ones on the trucks are calibrated differently or have a lower field strength ?

    I'm waffling.. now .. I have a Google phd :Laughing:
     
    Last edited: Feb 2, 2013
    • Like Like x 1
Loading...

Share This Page