Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual page 233

UltiMate 3000 Series:
NCS-3500RS and NCP-3200RS
Fig. 90: Operating principle of the pump (ProFlow flow meter)
In case of the ProFlow flow meter, the signals of the flow sensors Flow and Flow are
A B
compared with the set values F1 and F1 . The pumps A and B are controlled in
Set_A Set_B
response to the difference between the set values and the sensor signals.
Operating Instructions Page 225