Overpressure POST N001 / N000 Off / On feature is turned on: When the pressure is greater than (upper limit + 0.1MPa), disconnect relay, screen alarm display "E - 2", when the pressure drops below the lower (upper + 0.1MPa), pressure switch, alarm canceled, far Pressure transmitter pressure switch action, the controller back to work. Remind customers control system has exceeded the upper limit of the pressure control, check the system for unusual focus on research and development for 20 years, the global cumulative sales of millions of Beijing tour grace after ten years of independent research and development, manufacturing, currently in the pressure switch has been particularly skilled in the art mature, complete with three major US manufacturers comparable to the pressure switch, only the annual R & D R & D cooperation with well-known domestic enterprises have also been increasingly involved in PetroChina, Sinopec, China's nuclear power projects and other platforms. The difference between the pressure switch and pressure sensors, pressure switches, swim grace (view) provided by TU Technology Co., Ltd. Beijing tour. Beijing Tour En Technology Co., Ltd. (www.bjyouen.com) (www.bjyouen.com) is specialized in "pressure transmitters, pressure switches, flow meters, flow switches, temperature transmitters, temperature switches," the enterprise, the company Adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Ms Fung.