I hope you already sorted out this issue,
but anyway: try to apply a positive pressure on the negative side of the transmitter. Retry the configuration with the 275.
If it does not work try to upload Factory trim.
The transmitter will be re-set.
I am using the ABB 264 models and I am doing...
frogcurry,
As far as I understood you need to measure a liquid level in a tank (or chamber) that is under an X static pressure (not an atmospheric tank).
Your fluid max spec. gravity is 1.1 kg/lt;
Being your application not atmospheric you have to use a DP transmitter and connect the negative...
