Pressure sensor is a measuring device that can sense the measured information and transform the sensed information into electrical signals or other required forms of information output according to a certain law to meet the requirements of information transmission, processing, storage, display, recording and control. In the use of pressure sensors will encounter the condition of not working properly. Common problems we summarized. Failure 1: Pressurized pressure sensor output does not change, and then pressurized pressure sensor output suddenly change, pressure relief pressure sensor zero can not go back. The cause of this problem may be caused by the pressure sensor mounting interface and the application of machinery and equipment threaded connection of the sealing ring. Usually due to the sealing ring specifications (too soft or too thick), the pressure sensor twisted tightly, the seal is compressed to the pressure sensor pressure port inside the blocking of the pressure port, pressurized pressure medium can not be normal through, when the pressure is very large suddenly open the sealing ring, the pressure sensor by the pressure and change, and the pressure is lowered again, the seal is back to the blocking of the pressure port, the residual pressure is not released, so the pressure sensor zero position and down. Sensor zero and can not come down. Fault 2: zero output signal When the pressure sensor pressure zero phenomenon, can be dealt with from the following aspects: first check whether there is pressure in the pipeline, whether the instrument is normal power supply, and then check whether there is the phenomenon of power polarity reversal, and finally check the electronic circuit board, pressure-sensitive membrane head, pressure sensor supply voltage. Star Instruments Sensor Technology Co., Ltd. is a collection of research and development, production, sales as one of the high-tech enterprises. Specializing in the production of pressure transmitters, level transmitters, temperature transmitters, temperature and humidity transmitters, differential pressure transmitters, soil moisture transmitters, 3051 transmitters and related instrumentation accessories. Many products under the brand of Star Instruments have obtained a number of patents issued by the state, such as CE certification, IS9001 certification, SGS certification, TüV SüD certification, explosion-proof certification and so on. For product consultation, product customization, agency, technical inquiries, quotes, etc., please contact Star Instruments: 400-600-4496 !