l 5 input points ; high level, median level , low level and 2 fault signal

l 4 output points : control the pump and output the operating signal, the contacts load

of the relay is 250V2A

l The program of the controller has the automatic removing rust function, the rotation

working time of the pumps can be changed, automatically switch to another pump as one

pump

breakdown, level signal delay function . The ordinary control boxes have no these functions

l Memory storage (10years)/mechanical life

l The liquid level detection adopts the low voltage sampling, which avoid the oxidation of

the

strong voltage signal to level switch contacts. This can prolong the using life of the float

and ensure the reliable of the whole equipment.