857805模块

施耐德双电源WATSGA-100/4P            WATSGB-100/4P                                  WATSNB-63A/4P施耐德双电源WATSGA-125/4P            WATSGB-125/4P                                  WATSNB-80A/4P施耐德双电源WATSGA-160/4P            WATSGB-160/4P                                  WATSNB-100A/4P施耐德双电源WATSGA-200/4P            WATSGB-200/4P                                  WATSNB-160A/4P施耐德双电源WATSGA-250/4P            WATSGB-250/4P                                  WATSNB-250A/4P施耐德双电源WATSGA-320/4P            WATSGB-320/4P                                  WATSNB-400A/4P施耐德双电源WATSGA-400/4P            WATSGB-400/4P                                  WATSNB-630A/4P施耐德双电源WATSGA-500/4P            WATSGB-500/4P                                  WATSNB-800A/4P施耐德双电源WATSGA-630/4P            WATSGB-630/4P                                  WATSNB-1000A/4P


GE-28消防系统低压压力开关感受到的是管道系统内来自高位水箱的水位的静压。消防水箱先启用，水位下降，低压压力开关感受的静压降低，转换成电信号，启动消防主泵。低压压力开关的初始值（也即调试时，压力开关的压力传感器自动感应到的），就是压力开关的标高和高位水箱高水位标高的高差。消火栓系统的压力开关是新事物，按规范设在消防水泵的出水干管上。分两种情况：如果高位消防水箱够高，不需要稳压泵，此时压力开关设定应该是消防水箱的低位报警水位对压力开关的静压值。