Is there a way to test the TC amp on a fully assembled HeaterMeter?
Edit 1: I see that the docs for the AD8495 say that you can ground both input connections and it will report its own ambient temperature.
Edit 2: With the inputs grounded, I'm seeing the AD8495 report an ambient temp of 92F, while the Vishay 10K is reporting 68F. I've removed it from the case, so the vishay reading is pretty close to what the temps are in my basement.
Edit 3: Some measurements I've taken with my meter. Based on the TC testing doc on the wiki:
Nothing plugged into the TC jack, I'm seeing 3.25v between GND and "4"
Between "5" and "2" shows 3.3v
Between "5" and "4" shows 0.05v
TC inputs shorted to ground, I'm seeing a reported temp of 102F and 0.2v between GND and "4"
Edit 4:
I left it overnight with the inputs grounded. It seems to have lowered in temp after time, but the temps are still quite high. For the most part it's following the same trend as the Vishay 10k.