K-Type Thermocouple Cartridge

Discussion in 'E3D-v6 and Lite6' started by tiagoermida, Oct 6, 2016.

Tags:
  1. tiagoermida

    tiagoermida Member

    Joined:
    Oct 6, 2016
    Messages:
    2
    Likes Received:
    0
    Hi,
    I'm trying to upgrade my printer to use a High temperature heater.
    For the temperature measurement i decided to use your k-type thermocoupler.

    But in this case i will need a much longer cable to wire it to the board. As i have read somewhere else, the thermocouple resolution could be affected by the cable length.

    Is this an issue? Could i just extend the cable length that i desire or should i take some considerations first?

    Thanks in advance,
    T_Ermida
     
  2. elmoret

    elmoret Administrator

    Joined:
    Mar 1, 2014
    Messages:
    631
    Likes Received:
    101
    The problem is not the length of the cable, but joining dissimilar metals and creating cold junctions.

    Would recommend not extending the thermocouple, but instead mounting the thermocouple board at the end of the thermocouple cable, and extending the output from the thermocouple board.
     
    tiagoermida likes this.
  3. tiagoermida

    tiagoermida Member

    Joined:
    Oct 6, 2016
    Messages:
    2
    Likes Received:
    0
    the board i'm using (Panucatt Azteeg X3 Pro) already supports Thermoculpes. But i really need to extend the cable.

    What would be the solution?
     
    #3 tiagoermida, Oct 6, 2016
    Last edited: Oct 6, 2016
  4. seabell

    seabell New Member

    Joined:
    Oct 10, 2016
    Messages:
    1
    Likes Received:
    0
    Normally you would use extension or compensating cable - and connectors - appropriate for the TC you are using.
    It may be cheaper to just buy another cheap-ish K-type with a long cable, cut off the tip and use the chromel-alumel wires to extend your hotend TC (again, using proper connectors). The length you will be using is unlikely to be an issue, but many TC alloys don't stand up to repeated bending very well, so that might be a problem.
    Elmoret's suggestion is probably the ideal method, though it may seem inconvenient.
    I'm new here, so not sure if allowed to post links to suitable products.
     
  5. mike01hu

    mike01hu Well-Known Member

    Joined:
    Apr 22, 2014
    Messages:
    957
    Likes Received:
    167
    No problem with posting where you like if you have a useful contribution to make. All are welcome!:)
     
  6. elmoret

    elmoret Administrator

    Joined:
    Mar 1, 2014
    Messages:
    631
    Likes Received:
    101
  7. paulandrews911

    paulandrews911 New Member

    Joined:
    Jan 24, 2018
    Messages:
    1
    Likes Received:
    0

Share This Page