Thanks to the use of a plug-in power supply giving only a low voltage of 12 V DC. The danger of electrical shock during the use of the DOSER or HI-DOSER powder feeding system has been virtually eliminated, even when an electro conductive solution penetrates the DOSER or HI-DOSER.

If the powder dispensing pump is not used for an extended period of time, disconnect it from the mains.

A modern miniaturized switching power supply is used, which has only a negligible consumption of electric current when the powder DOSER or HI-DOSER is not in use.