If the beeper beeps the reception is jammed or the voltage of the battery is too low. 如果蜂鳴器發聲，表示接受受到了干擾或者電池電壓過低。
VCM represents the common-mode voltage, which contains no useful information about the measurement and could in fact reduce the measurement accuracy. 象電池電壓監視的應用，共模電壓是測量系統所隱含的。
In this technology, entering the electric tank brine mass is this technology key , it has important effect to ionic membrane life-span , slot voltage and current efficiency. 在這項技術中，進入電解槽的鹽水質量是這項技術的要害，它對離子膜的壽命，槽電壓和電流效率有著重要的影響。
