Pressure Sensor what common faults

Pressure Sensor Troubleshooting What ? Matter what sensor is not a permanent shelf life for its failure, we want to treat , here to talk about the pressure sensor of the common faults .1, the pressure up , the transmitter output falters
In such cases, you should first check the pressure connections for leaks or is blocked, if confirmation is not , check the wiring and check the power supply , such as the power supply is normal to see whether the output is a simple pressure change , or view the output of the sensor if there is zero , if there is no change in the sensor is damaged , it may be damage to the instrument or other aspects of the whole system problems ;2, the pressure sensor seal problems
Pressure transmitter output does not change, then a sudden change in pressure transmitter output , the transmitter zero relief go back , most likely the pressure sensor gasket issue. Common reason is due to seal specifications , tighten the sensor to Engine Water Temperature Sensor after the sealing ring is compressed impulse blockage sensors inside the mouth , the pressure medium is pressurized get in, but when the pressure suddenly rushed to open the seals, the pressure sensor under pressure changed. The best way to troubleshoot is to remove the sensor , a direct look at the zero level is normal , if normal replaceable seals zero again ;3 , the transmitter output signal instability
Such failures are willing to question the source of stress . Pressure source itself is an unstable pressure , most likely meter or pressure sensor anti-jamming capability is not strong , Engine Temperature Sensor itself is very powerful and vibration sensor failure ;4, the transmitter and the gauge pointer control large deviationDeviation is a normal phenomenon , can confirm the normal range of deviation ; final failure is prone to micro- differential pressure transmitter installation location of the zero output. Differential Pressure Transmitter measuring range due to its small transmitter sensing element will affect the micro- differential pressure transmitter output. Pressure transmitter should be installed so sensitive axially perpendicular to the direction of gravity , adjusted after mounting the transmitter to the standard value of zero .The content is the commonly used four common pressure sensor failure, we normally use pressure sensors are made ​​of piezoelectric effect , so that the pressure sensor is also commonly referred to as piezoelectric sensors .