WTT19 Industrial Pressure Sensor

l Piezoresistive silicon chip employed                                                                                                                                                                                                              

l Perfect long term stability           

l MEMS technology                                                     

l Sensor diameter: 19mm                                                                                                                                              

 PC9(WTT19) industrial pressure sensor is a standard and popular sensor applied in air and liquid pressure measuring. A high sensitivity silicon pressure chip is employed in the sensor. The housing is filled with oil for pressure transmission. The most important specification for industry application is long term stability. PC9(WTT19) sensor is designed for industry application with perfect long term stability.

Diaphragm and pressure range

The diaphragm diameter has tight relation with pressure measured. Low pressure requires large diameter and high pressure needs small diameter. This is caused by oil expansion during temperature changing. It creates internal pressure due to the resistance of the diaphragm. The smaller diaphragm will create large internal pressure, and it is difficult to make zero compensation.