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PT100 amplifier board

Posted by Tomsand

Tomsand

PT100 amplifier board
January 20, 2016 10:31AM

Registered: 9 years ago
Posts: 87

I have some Ultimaker2-style PT100 sensor that I want to connect to my RUMBA.
Are there any cheaper amplifier boards out there that I can use to do that?
I would've bought these but it's getting expensive when you need 6 of them.

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karabas

Re: PT100 amplifier board
January 21, 2016 04:06AM

Registered: 12 years ago
Posts: 227

[www.aliexpress.com]

Edited 1 time(s). Last edit at 01/21/2016 04:07AM by karabas.

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Tomsand

Re: PT100 amplifier board
January 21, 2016 06:12PM

Registered: 9 years ago
Posts: 87

I know these and they are from very poor quality. Any other recommendations?

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greenman100

Re: PT100 amplifier board
January 22, 2016 12:15AM

Registered: 11 years ago
Posts: 210

I run Filastruder, an E3D distributor. I might be able to help, shoot me a message using the Filastruder site's contact form.

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karabas

Re: PT100 amplifier board
January 28, 2016 06:41AM

Registered: 12 years ago
Posts: 227

Quote
Tomsand
I know these and they are from very poor quality. Any other recommendations?

What is the source of this info?

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dc42

Re: PT100 amplifier board
January 28, 2016 02:36PM

Registered: 10 years ago
Posts: 14,683

Best check what sort(s) of amplifier board the firmware that you intend to run will support. There are two sorts of RTD amplifier board: linear amplifiers that connect to an analog port, such as the E3D board; and amplifiers based on the MAX31865 chip with a digital (SPI) output, that connect to the SPI pins in the same way as most thermocouple boards.

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

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[email protected]

Re: PT100 amplifier board
June 27, 2016 08:50PM

Registered: 8 years ago
Posts: 2

I bought the E3D set cuz of its positives recommendations but I still do not figure how to make it work with my new Rumba, I know that is something in the Marlin code, the wires comes with some plugs all ready installed, but they do not look like to be design for the Rumba. I am a little confused.

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Dyze_Design

Re: PT100 amplifier board
June 28, 2016 04:34PM

Registered: 8 years ago
Posts: 44

See here for your reference: [wiki.e3d-online.com]

You need to find a free analog pin in order to assign it to your firmware. The Rumba board schematic will point the available pin number.
[reprap.org]

Look for EXP3, it shouldn't be used, I think.

DYZE DESIGN
Hotends, Extruders, Liquid Cooling and Accessories.

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[email protected]

Re: PT100 amplifier board
June 29, 2016 08:46PM

Registered: 8 years ago
Posts: 2

Thank you Dyze Design ! That help me a lot! All is working a lot, so I hope to be able to print PC! Thank you again.