型号ModelSGZ-1ASGZ-2A测定原理Minimumprinciple90?散射光90?散射光最小示值Minimumreadout0.10.01测量范围Measurimgrange(NTU)0-1000-2000-20基本误差Basicerror?2.5%F.S?2%F.S重复性Repeatadility1.5%F.S1%F.S零点漂移Zerodraft(NTU/30min)0.20.2电压波动Voltagefloat0.5%F.S0.5%F.S供电电源powersupply220V50Hz220V50Hz