Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Can strain cause temperature fluctuation with PT1000 sensors?

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
    2
    2
    157
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Bloft Design Labundefined
      Bloft Design Lab
      last edited by

      Just lately, during testing of our printer, I noticed temperature faults on two different PT1000 sensors of our pellet extruder. Since the sensor cables run over a length of 15 meters and since they hang from 4 meters height above the end effector, I started to wonder if occasional strain on the cables could affect the readings?

      The other option is a partially broken cable, but I rather do not believe this is the case since the cables are new and the printer has been in testing for just over three weeks now.

      Any experiences on this topic?

      Also, is it possible to route the sensor signals through a regular low-resistance wire without disturbing the reading too much?

      Luke'sLaboratoryundefined 1 Reply Last reply Reply Quote 0
      • Luke'sLaboratoryundefined
        Luke'sLaboratory @Bloft Design Lab
        last edited by

        @bloft-design-lab

        Not flaming/accusing, but I've definitely fatigue failed wires within 3 weeks of testing with poor routing choices and/or non-flexible wire choices.

        "occasional strain" can fatigue fail wires.

        I've also rectified that by using high-flex regular wire without noticeable issues. Just don't use CCA materials and you'll probably be fine. 🙂

        Luke
        http://lukeslab.online

        1 Reply Last reply Reply Quote 0
        • First post
          Last post
        Unless otherwise noted, all forum content is licensed under CC-BY-SA