Parameter protection P001 / P000 close / open function is on: Press (ON / OFF) key to run any key other than, the screen will show "----" Pressure switch manufacturers Which is good, then you need to enter the password to set the lower limit and other parameters. Protection engineers set parameters are not modified overpressure POST N001 / N000 Off / On feature is turned on: When the pressure is greater than the (upper + 0.1MPa) proof pressure switch, disconnect relay, screen alarm display "E - 2" Pressure Switch much money, when the pressure drops below the lower (upper + 0.1MPa), the police canceled the controller back to work. Remind customers control system has exceeded the upper limit of the pressure control, please check the system for abnormal pressure switch | Tour En | Explosion pressure switch provided by the Beijing Amusement TU Technology Limited. Pressure Switch | Tour En | Explosion pressure switch is Beijing Tour En Technology Co., Ltd. (www.bjyouen.com) (www.bjyouen.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Ms Fung.