Heater 1 fault

[jay_s_uk]

Do you have the jumper fitted for 2 wire PT100 on the smart effector?
Have you tried connecting the PT100 directly to the daughter board?

[gabi68]

@jay_s_uk
The jumpers are in place. PT100 is inseterd and plastic prong is in place. Anything else, please?

[jay_s_uk]

I would suggest checking the PT100 with a multimeter to make sure the resistance reading is correct.
I would also use a multimeter to check your point to point wiring to make sure there are no breakages in the cable or poorly made crimps.

[droftarts]

@gabi68 Would have been good to mention you were using a Smart Effector! Have you actually measured the resistance of the PT100? You need to check at each connector. I don't see how this is a config/Duet issue, as you get 0ºC with the resistor.

Ian

[gabi68]

@droftarts
I just checkit. The resistance is under 1 ohm and the continuty is there for all cables. According to the PT100 resistance table I should see values between 107 and 111 ohm.
I agree is not a duet issue, but this (PT100) is sold like an addon for duet. Any advice, please?

Gabi

[droftarts]

@gabi68 Contact the seller and ask for a warranty replacement, as the PT100 seems to be faulty. I'd connect the 100ohm resistor to the pins on the SmartEffector, which should check continuity and for any extra resistance/short in the wiring.

Ian

[gabi68]

@droftarts
There is any way to check if the PT 100 is fried?
Do you know it will be better to order a thermocouple board with associate thermocuple?

Gabi

[Veti]

@gabi68 said in Heater 1 fault:

There is any way to check if the PT 100 is fried?

it it is 1 ohm there is a short somewhere inside, so its fried.

[dc42]

If the resistance really is 1 ohm, it's probably a thermocouple, not a PT100.

[gabi68]

@dc42 How can I check if is a thermocouple?

[dc42]

@gabi68 said in Heater 1 fault:

@dc42 How can I check if is a thermocouple?

What colour are the wires coming out of it? I believe E3D uses different coloured wires for thermistor, PT100 and thermocouple cartridges.

[gabi68]

@dc42 Red

[droftarts]

@gabi68 said in Heater 1 fault:

@dc42 Red

Looks like E3D PT100 is red https://e3d-online.com/pt100-temperature-sensor
Thermocouples usually have a braided cover https://e3d-online.com/type-k-thermocouple-cartridge
Thermistors are blue https://e3d-online.com/thermistor-cartridge

So probably still just a failed PT100.

Ian