Check the fault appears to the construction site, the vast majority is due to failure of pressure sensor to use and installation methods, sums up several aspects.
 

1, a component (orifice, remote measuring joint, etc.) blockage or type of installation is wrong, pressure points is not reasonable.
 

2, pressure pipe leakage or congestion, liquid in the tube with residual gas in the remaining liquid or gas tube, flange transmitter process of sediment and form the measurement of dead zone.
 

3, wiring is not correct, transmitter power supply voltage is too high or too low, indicating meter and meter terminal joint poor contact.
 

4, not in strict accordance with the technical requirements for installation, installation and site environment does not meet the technical requirements.