All preset ingredients quantity with power-offprotection function;
所有预置配料份量都具有断电保护功能；
2
Over current protection device: when the sample breakdown in the 0.1s cut off the power.
过电流保护装置：试样击穿时在0.1 S内切断电源。
3
Double protection of electronic and mechanical, automatic cut offpower after opening, increase the use and maintenance of security, stability, reliability.