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Any experience with this Azel supply/return temp gauge?

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D107
D107 Member Posts: 1,944
in THE MAIN WALL
as well, since I don't have the wells to insert into in my setup. And I should (?) put some black electrical tape or paint pipe black at point of measurement from copper pipes?

This setup actually comes out a bit cheaper than buying two different thermometers and has other advantages as well.

Thanks,

David

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  • D107
    D107 Member Posts: 1,944
    single digital gauge, two probes

    this is the link:

    http://www.accentshopping.com/product.asp/s/ie6wb836nyzixmundszniayis2Yblbofdvg234029/&P_ID/149655/#REVIEWS

    Probe can be strapped on pipe or inserted into wells. I would wonder about the accuracy of the read. Using it to measure Delta T.

    Thanks,

    David
  • Glen
    Glen Member Posts: 854
    i use

    model DS 60 P. perfect application for delta T. very accurate (based on 10K thermister)
  • Brad White
    Brad White Member Posts: 2,399
    I own three

    and find them perfect for Delta-T as Glen said. Indoor-outdoor, boiler in and out, system in and out. As Glen noted, 10K Ohm thermistors are quite accurate. Same sensors as come from Tekmar that I can tell.
    "If you do not know the answer, say, "I do not know the answer", and you will be correct!"



    -Ernie White, my Dad
  • Glen
    Glen Member Posts: 854
    attach

    to bare pipe for best surface contact. (not sure how thickly you paint) and then wrap with a bit of fiberglass pipe insulation to completely isolate sensor. And the tekmar 071 sensor can be used if the original sensor goes funky on you.
  • Brad White
    Brad White Member Posts: 2,399
    Glen is correct

    Forget the "paint thing"- that applies to radiant heat measurement, not contact (conduction). Take a fine mill file and remove the surface finish to bare metal. If you have heat conductive paste (a mix of petroleum jelly and aluminum powder, near as I can tell), a schmeer of that will make for good contact.

    The sensors have a concave side designed to snug against pipe wall radii, you will see.

    Personally, I wrapped mine in Armaflex insulation tape, secure it with a stainless steel band clamp, then over-insulate with full Armaflex and maybe some thin plastic ties.
    "If you do not know the answer, say, "I do not know the answer", and you will be correct!"



    -Ernie White, my Dad
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