The pressure transmitter suddenly shows the maximum range
Thread Content
During normal operation, the pressure transmitter suddenly shows the maximum range value. The pressure tapping valve was closed and the system was emptied, but the indicator still shows the maximum range value. Could experts help analyze what could be the cause? A new transmitter has been installed and it shows normal readings; it seems the original transmitter was damaged
If the transmitter diaphragm box undergoes irreversible deformation, it is damaged
If it shows the maximum value even when there is no pressure, it indicates that the pressure transmitter is damaged and needs to be replaced.
It occurs frequently in winter due to freezing, but is rare in summer
The diaphragm is damaged; as for the cause of the damage, the original poster needs to analyze it in conjunction with the operating conditions