10
I.
When the collecting tank is empty, the level of sewage is below
the minimum level and of course below the maximum level. The
min level sensor has to give a closed free voltage contact signal to
the ECOmar S main control box; and the max level sensor has to
give an open free voltage contact signal to the ECOmar S main
control box. In this way, the filling pump is set in standby.
II.
When the sewage level of sewage reaches the minimum level, the
min level probe installed on the collecting tank has to give an open
free voltage contact signal to the ECOmar S control box; and the
max level sensor, has to continue to give an open free voltage
contact signal to the ECOmar S main control box. In this way, the
filling pump is still set in standby.
III.
When the sewage level of sewage reaches the maximum level, the
min level probe, installed on the collecting tank, has to continue to
give an open free voltage contact signal to the ECOmar S control
box; and the max level sensor, has to give a closed free voltage
contact signal to the ECOmar S main control box. At this point the
ECOmar S control box will activate the filling pump, transferring
the sewage to the ECOmar S treatment tank up to the bottom sensor
in the treatment tank, then stops the sewage transfer and continues
the treatment cycle.
IV.
At this stage, after the treatment cycle is completed, we can have two different sceneries:
Min level
Max level
Min level
Max level
Min level
Max level