Ramps 1.4 on Wanhao I3 thermocouple reading

[Goderfer]

Ok, so now it is working like it should.

I put a pull down resistor of 10k ohm 1/8w between the negative side of the thermocouple to the ground of th AD597 board.
My big mistake was to ground the thermocouple shield on the printer body, now that i ground it directly on the ground of the AD597 board, the temps stop to drop.

Now it is incredibly steady and it gave me a pretty good accuracy, better than my old themistor.

MODERATOR NOTE: Post is late to appear due to unexpected delay in obtaining moderator approval.