Overpressure POST N001 / N000 Off / On feature is turned on: When the pressure is greater than (upper limit + 0.1MPa), pressure switch, disconnect the relay, pressure switch OEM screen alarm display "E - 2", when the pressure drops below the lower (cap + 0.1MPa), alarm canceled, pressure switch manufacturers, controllers back to work. Remind customers control system has exceeded the upper limit of the pressure control, check the system for unusual two, compared to electrical contacts list, good l long life advantages of mechanical pressure switch l l high precision repeatability, no patch, no contact corrosion l strong set of flexible l l l drift is small visual display Pressure Switch OEM | Pressure Switch | Tour En (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.