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  1. #1
    Join Date
    Jul 2006
    Location
    L.I.Newyork
    Posts
    521
    my boss is persistent about me doing service.what would be a good digital thermometer for figuring out sub cooling and superheat.thye fluke model 52-2.i think this even figures out your differential?good? any thoughts?

  2. #2
    Join Date
    Feb 2004
    Posts
    534
    Go with the fluke 52-2 and fluke pipe clamp probe!

  3. #3
    Join Date
    Jul 2005
    Posts
    1,035
    I use a fluke pipe clamp probe hooked to a feild peice MM....not a fluke but works and seems a LOT more accurrate than a pipe clamp thermomoter I was useing or cliping the thermocupler from the MM to the pipe.

    73% of Americans say that illegal immigration is a problem. The other 27% say, "No habla inglis!"

  4. #4
    Join Date
    Feb 2005
    Posts
    665
    I bought one of the fluke pipe clamp deals, it was so far off, and been leary of them ever since.

  5. #5
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Originally posted by cool-blew
    I bought one of the fluke pipe clamp deals, it was so far off, and been leary of them ever since.
    I have been using the pipe clamp probes for about 10 years now and find them to be the most accurate way to get the temperature of a pipe.

    If you are doing the typical ice water test to check its accuracy, you have to clamp it around a small section of pipe or something. They don't directly read liquid or air temperatures very accuratly.
    If more government is the answer, then it's a really stupid question.

  6. #6
    Join Date
    May 2006
    Posts
    131
    Been thinking about getting a Cooper/Atkins MFM300 Multi-Function Meter, has just about everything covered in one meter. Anyone have any feedback on this thing. Have used a cooper SH66A with no problems.

  7. #7
    Join Date
    Jul 2006
    Posts
    184
    Does the clamp on pipe probe for the Fluke 54 also work with a Fluke 87?

    Also, is using a non-contact, IR thermometer accurate enough for determining superheat temperatures?

  8. #8
    Join Date
    Jan 2005
    Location
    Orange County, New York
    Posts
    1,459
    Originally posted by bugman1400
    Does the clamp on pipe probe for the Fluke 54 also work with a Fluke 87?

    Also, is using a non-contact, IR thermometer accurate enough for determining superheat temperatures?
    lol nope

  9. #9
    Join Date
    Apr 2004
    Posts
    395




    My set up.

    [Edited by fitter638nyc on 07-16-2006 at 11:02 PM]
    Tin Knockers BANG for a living

  10. #10
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Originally posted by bugman1400
    Does the clamp on pipe probe for the Fluke 54 also work with a Fluke 87?
    Yes, Fluke temperature probes are mostly all Type K thermocouples that will work with any instrument that uses Type K thermocouples.
    A few of the specialty probes are Type J or T thermocouples, so watch out if you get some of the oddball probes.

    Also, is using a non-contact, IR thermometer accurate enough for determining superheat temperatures?
    Absolutely not!

    You can get reasonably accurate by painting an area flat black, and or adjusting emisivity settings on the meter, but non contact thermometers should never be used for applications where a high degree of accuracy is required.
    If more government is the answer, then it's a really stupid question.

  11. #11
    IR meters are one of THE most repeated threads here. Along with txv's, cap tube problems and beer.

    do a search of this site to find your answers to that question.

  12. #12
    if your gonna use a thermometer to measure superheat and subcooling, your in the top ten percent of this forum. So my hat is off to you!

    Many will talk about insturements, but when push comes to shove, they just leave those expensive tools in the truck.


    I carry mine along in padded cases with aluminum snap hooks to attach them to my belt or tool bag.

    It's easy to say someone is a service man, it's quite another to demonstrate the proof by using the correct insturements in order to do the job right.

  13. #13
    Join Date
    Jul 2004
    Location
    Southern Alabama
    Posts
    448
    I use the Fluke 52 with two Fieldpiece clamp meters.

    Both clamps go on when I start the service and come off when done. I like the capability of measuring BOTH SH & SC regardless of the type of metering device used.

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