20
FIS
Proportional/constant pumpdrivenbyadigitalsignal.
Settingtheswitchonconstant
position,thepumphasflowcontrol(frontpanelknobmaybeset
from0%to100%ofpumpnominalcapacity).Flowcontroliselectronicallysetanditoperatesonpump
injectionsnumber.Toavoidlinearityproblemdonotsettheknobofpumpflowbetween0%and10%.
Settingtheswitchonthefrontpanelintheproportional position,foreachexternal“voltagefree”
pulsecorrespondsamagnetstroke.
Ifproportionalpositionisset,thenthe%markedknobdoesNOTaffectthepumpcapacity.
FISproportionaldosingpumpcanbedrivenbyanyexternaldevice(suchasPCs,PLCs,etc)thathas
adigitalsignal.Thisdigitalsignal(N.O.contact)mustbeappliedtothecableprovidedwiththepump.
Connecta0÷5or0÷12Vdcinputsignaloptionusingthefollowingconnections:
-Redwire:positive (+)
-Blackwire:negative (-)
8. Models
constant
proportional
strokespeedknob
on/offbutton