pt 100

Discussion in 'The Projects Forum' started by alan carr, Oct 1, 2008.

  1. alan carr

    Thread Starter New Member

    Oct 1, 2008
    1
    0
    i hav a pt 100 4 wire probe. its got no information wit it at all just two white and two red wires i know tihs prob sounds stupid to u guys but is there any way i can find out which is V+ V- and the rest plz help first timer not sure what i got myself into
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Does the probe have a part number and manufacturer's name?
     
  3. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
    PT100 is a common temperature transducer. It comes available in a variety of interface options, so you need to give the part number. Could be 4-20mA, 0-5V, etc.

    Steve
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    If it's just a bare probe, the leads may be for Kelvin measurement. Two wires carry the current, and the other pair are for the measurement device. The way to check is to place an ohmmeter on the leads. If I am correct, the reds should read shorted, same for white. The resistive element is not polarity sensitive.
     
  5. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
Loading...