max31855 with Arduino

Post test messages here

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
junhuiz
 
Posts: 19
Joined: Fri May 23, 2014 3:39 pm

max31855 with Arduino

Post by junhuiz »

hello,

I tried run MAX31855  with Arduino UNO using Adafruit product/269,
But, temperature readout decreases when I put my hands on the type - k thermocouple tip.
it is supposed to increase. I reversed the polarity of the two thermocouple wires, the readout becomes to increase as expected,

I am wondering what is wrong, or it is just the wrong label on the board for thermocople wires (yellow and red).

Jun

User avatar
adafruit_support_bill
 
Posts: 88093
Joined: Sat Feb 07, 2009 10:11 am

Re: max31855 with Arduino

Post by adafruit_support_bill »

Sounds like the color coding on your thermocouple is the reverse of normal. We see these occasionally.

Locked
Please be positive and constructive with your questions and comments.

Return to “Test Message Forum (closed)”