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    Mosquito Hotend PT1000 issues

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    Duet Hardware and wiring
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    • dc42undefined
      dc42 administrators @wcmartino
      last edited by

      @wcmartino I doubt it, however they will probably need different ADC corrections. Your new board will have had the calibration done and stored during testing; your older board will not. That's why I suggested you perform the calibration. PT1000 sensors are more sensitive to calibration errors than thermistors. Are you sure that you performed the calibration correctly on the older board?

      Duet WiFi hardware designer and firmware engineer
      Please do not ask me for Duet support via PM or email, use the forum
      http://www.escher3d.com, https://miscsolutions.wordpress.com

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      • wcmartinoundefined
        wcmartino @dc42
        last edited by

        @dc42 Yes, tried it several times, nothing helped for either sensor. Will have to revist it antoher day, I already have the printer put back together.

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        • dc42undefined
          dc42 administrators @wcmartino
          last edited by dc42

          @wcmartino what L and H corrections did the calibration process report?

          Duet WiFi hardware designer and firmware engineer
          Please do not ask me for Duet support via PM or email, use the forum
          http://www.escher3d.com, https://miscsolutions.wordpress.com

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          • wcmartinoundefined
            wcmartino @dc42
            last edited by

            @dc42 Ok reconnested the board. With the sensor disconnected H reports -6. Jumpering the connector on the effector and running the l999 says correction is 1.

            With the resistor in place upon booting it shows -20.5C. If I manually set H to -127 I still show -15.3C.

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            • dc42undefined
              dc42 administrators @wcmartino
              last edited by

              @wcmartino have you tried using a different temperature input?

              Duet WiFi hardware designer and firmware engineer
              Please do not ask me for Duet support via PM or email, use the forum
              http://www.escher3d.com, https://miscsolutions.wordpress.com

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              • wcmartinoundefined
                wcmartino @dc42
                last edited by

                @dc42 Appoligies for the delayed response. I get the same results. I am good with running the nerw board on the Delta.

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                • dc42undefined
                  dc42 administrators @wcmartino
                  last edited by

                  @wcmartino when and where did you purchase the original board?

                  Duet WiFi hardware designer and firmware engineer
                  Please do not ask me for Duet support via PM or email, use the forum
                  http://www.escher3d.com, https://miscsolutions.wordpress.com

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                  • wcmartinoundefined
                    wcmartino @dc42
                    last edited by

                    @dc42 I purchased the board from Fliastruder way back in Dec 2020.

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                    • dc42undefined
                      dc42 administrators @wcmartino
                      last edited by

                      @wcmartino unfortunately it's out of warranty then. As the calibration process produces sensible L and H values, it appears that the ADC is working correctly. You could use your multimeter to check that the thermistor series resistors R60 R61 and R62 read correctly. They should each read 2200 ohms with nothing connected to the TEMP pins.

                      Duet WiFi hardware designer and firmware engineer
                      Please do not ask me for Duet support via PM or email, use the forum
                      http://www.escher3d.com, https://miscsolutions.wordpress.com

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                      • wcmartinoundefined
                        wcmartino @dc42
                        last edited by

                        @dc42 No worries, I know it is too old. For now I have a new board installed and it is working good. I will mess with the other one when I have some free time. Thanks for all the assistance on this.

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