A while ago we purchased two PT-104 units, both functioning . Now it seems that one of the units has decided to read 'low' by approx 1-1.5ÂºC on two of it's channels (1 and 3).
I've done some experimenting to rule out port, probe software errors:
It's not a port related problem as swapping the units has no effect on which unit is showing the error.
It's not a probe related problem as all the probes have been swapped with no effect.
It's also not a software related problem as my labview program and the bundled PICOlog both agree
Are there any known issues with the PT-104s suddenly deciding to read low, or more importantly any fixes?
As a side note: I haven't tinkered with any calibration data as far as i'm aware, unless using the bundled labview example (which doesn't function correctly) can do that...
help much appreciated