Equipment Overview And Function Description - ProMinent 987244 Mode D'emploi

Equipment overview and function description

4
The "Flow Control" flow monitor comprises essentially a pipe with a float (3)
and a bypass with adjustable cross section (see Fig. 1). The adjustable cross
section (control knob) enables the Flow Control to be adapted to the lift
volume of the pump - its response sensitivity is adjusted accordingly.
The float (3) rises and falls in time with the pump flow pulse in front of the
reed-contact (2). This magnetic float (3) thus opens and closes the reed-
contact (2). It transmits the resulting signals via the flow monitor cable to the
pump.
The pump uses these signals as acknowledgement pulses for its individual
strokes. If there is no acknowledgement pulse because the feed rate has fal-
len by approx. 20 % the pump stops after a pre-set number of failed pulses
and goes into fault mode (see "ProMinent
Metering Pump Operating Instructions").
In this flow monitor design there is always a flow as the line is not blocked by
the float, just the bypass.
1
2
3
Fig. 1
18
Equipment overview and function description
4
Size I
®
gamma/ L Manual Solenoid
1
2
3
Size II
4
1 Counter magnet
2 Reed contact
3 Float
4 Adjusting valve
(adjustment knob)
ProMinent ®