What is the best option of Thermal sensors working with Duet
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Hello all,
currently i have to update my printer to be able to start a project where i have to use technical filaments with the sideeffect that i habe to handle higher temepratures |350-500°C and if possible still temeratures in the Range 225-280 reliable.
May anyone give me some advice what the best temperature sensors for this wide range of temperature sensor is as well i need a snesor that is working propperly with the duet2 board?!?
I have a doughterboard added already to my duet2 wifi as well i have some PT1000 sensors but unfortuneatelly just a two pin version instead of 4 pin. Some time ago i've tried to configre an PT100 without success (it was as well an two pin version).Many thanks in advance
Danijel
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@topenga See:
https://duet3d.dozuki.com/Wiki/Temperature_sensors
I'd think PT100 was your best choice. You can wire a two-wire PT100 as 4-wire; see https://duet3d.dozuki.com/Wiki/Connecting_PT100_temperature_sensors#Section_To_connect_a_4_wire_PT100_sensorIan
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Or you could consider using a PT1000 instead of a PT100. I believe both are good for up to 600 deg C. Because of the higher nominal resistance, the PT1000 should be less susceptible to measurement errors due to to lead length and/or noise. I'm not 100% sure but I think you can connect PT1000s directly, without using a daughter board.
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Hello Deckingman,
Hello Droftarts,thanks a lot for replaying that fast. Understood....both sensor types (PT100 and PT1000) are runng with high temperatures...do you know anything concerning low temeprature capabality? Are i'm still able to print ABS/ASA and PETG? What about PT1000...do i need an 4 wired type to conect to the doughter board for better accuracety or is it accurate enaugh by conecting the two wired type directly to the duet?
many thanks
Danijel
Many thanks in advance -
@topenga Both types have good linearity characteristics so you should have no problem printing at lower temperatures. The P1000 is arguably more accurate than a PT100 because a 1% error in resistance on a PT100 would mean a 1degC error, whilst the same resistance error on a PT1000 would translate to 0.1 degC. The lead length would contribute to the resistance error so one could say that you are 10 times more likely to need 4 wires in a PT100 than on a PT1000. Note that this is just my opinion - I have no practical experience of using a PT1000. So someone who has used them in a practical application might have better advice.
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Hi Deckingman,
Thx a lot for that detailed explanation. This will help me a lot.......
Best regards
Danijel
