Temp sensors on tool board
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Hi,
the tool board documentation feature list mentionsTwo thermistor or PT1000 inputs. One uses a 16-bit ADC for high resolution reading of PT1000 sensors.
Which one uses the 16-bit ADC for high resolution reading of PT1000 sensors? That's not covered as far as I can see.
Also, just to make sure: I will not be able to use PT100 thermistors directly on the tool board, right? Those still need to go to the duet3 board and use the PT100 board?
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@oliof said in Temp sensors on tool board:
Also, just to make sure: I will not be able to use PT100 thermistors directly on the tool board, right? Those still need to go to the duet3 board and use the PT100 board?
That is my understanding. The PT1000 is more widely available now, is very reliable and accurate, and doesn't require a daughtboard/additional hardware.
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Alright, time to go order new thermistors (my reserve Semitec seems to be broken)... @Phaedrux slightly off topic, would you choose a PT1000 over a Semitec? If yes, why?
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@oliof I've not yet used a PT1000, but I would be tempted to try one over a semitec. That said, if you have a genuine Semitec with known values, and are printing at temps within it's accurate range, there isn't much incentive to use something else. (At least for typical 3D printing applications.)
https://blog.wika.com/knowhow/pt100-pt1000-or-ntc-which-is-the-right-measuring-element/
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Is it true that in a Duet application, PT1000 requires an amplifier board and PT100 does not?
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@Danal no it is the other way round the PT100 def needs the daughter board the 1000 does not
@oliof my goto sensor now is the PT1000 (haven't used a thermistor for some time now) the temp response from a PT1000 is more accurate and linear especially with a Meastro or Duet3 series board due to those using a 2200 ohm sense resistor!
Doug
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@Danal I don't think that's the case. The PT100 requires the daughterboard and the PT1000 can be direct connected. The Maestro and Duet 3 have additional hardware to make the PT1000 more sensitive, not exactly sure what that is or how much better it is than on the Duet 2.
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@Dougal1957 Right, the sense resistor. Back to drinking coffee, I haven't had enough obviosuly.
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@oliof said in Temp sensors on tool board:
Which one uses the 16-bit ADC for high resolution reading of PT1000 sensors?
The TEMP0 input uses the 16-bit ADC.
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@dc42 does the toolboard support the Slice thermistor? I assume/hope it will but mine hasn't yet arrived due to a shipping issue..
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@gfisher said in Temp sensors on tool board:
@dc42 does the toolboard support the Slice thermistor? I assume/hope it will but mine hasn't yet arrived due to a shipping issue..
It should do but I haven't tested that combination.