PTC bricklet reading completely incorrect temperatures.

[rich2387]

Hi All

I've been using 2 PTC bricklets connection to my PT1000s for about 6 months now without any problems. However, when I just connected the two i'm using the brickviewer was randomly reading -240 degrees for one when it should have been reading 18 degrees like the other bricklet. I've rescrewed all 4 terminals in case they were lose but this doens't seemed to have fixed the problem.

Anyone got any ideas on what might be the issue here?

Thanks

Rich

[borg]

Perhaps there is a small "cable break" in one of the Pt1000?

 

Have you tried wiggling the cables, can you reproduce the problem if you do this?