The pump doses proportionally to an external signal (ex: water meter
pulse-sender) by automatically calculating the ratio between the input
signals and the pump strokes according to the programmed ppm
value.
The data to be inserted are the ppm value, the pulses/liter ratio (or
liter/pulse) of the counter and the concentration of the product to be
dosed.
The dosage frequency can be modified during operation by pressing
+ simultaneously.