The maximum water flow together with the maximum flow of the dosing
Pump (see table of the flow increases through to work to 60 Hz, on page 10),
will determine the maximum proportion to be used in every installation:
Max. %= max.Injection flow (l/hr)/ max. Water flow (l/hr)
Ex.: Water flow = 40.000 l/h
Nominal pump flow (a 50 Hz):
MF2- 300/3 - 300 - 50
Keeping in mind that the 50 l/hr model is for acid, and that the
300 l/hr model is regualted at 50%
Nominal pump flow = 300 + 300 x 50/100 = 450 l/h
Expected proportion = 1%
The injection flow will be:
40.000 x 1 / 100 = 400 l/h
Maximum proportion (%máx.) = 540 / 40.000 x 100=
= 1.35 %
(Dosing pump:
nominal flow -50 Hz- = 450 l/h
Nominal flow -60 Hz- = 540 l/h)
6.-START UP
INJECTION CONTROL THROUGH PROPORCIONALITY
%
PROPORTION
WATER
FLOW
INJECTION
FLOW
NOMINAL
PUMP
FLOW
(a 50 Hz)
COMPACT V
FLOWMETER
USUARIO
Servomotor
24
The maximum water flow together with the maximum flow of the dosing
Pump (see table of the flow increases through to work to 60 Hz, on page 10),
will determine the maximum proportion to be used in every installation:
Max. %= max.Injection flow (l/hr)/ max. Water flow (l/hr)
Ex.: Water flow = 40.000 l/h
Nominal pump flow (a 50 Hz):
MF2- 300/3 - 300 - 50
Keeping in mind that the 50 l/hr model is for acid, and that the
300 l/hr model is regualted at 50%
Nominal pump flow = 300 + 300 x 50/100 = 450 l/h
Expected proportion = 1%
The injection flow will be:
40.000 x 1 / 100 = 400 l/h
Maximum proportion (%máx.) = 540 / 40.000 x 100=
= 1.35 %
(Dosing pump:
nominal flow -50 Hz- = 450 l/h
Nominal flow -60 Hz- = 540 l/h)
6.-START UP
INJECTION CONTROL THROUGH PROPORCIONALITY
%
PROPORTION
WATER
FLOW
INJECTION
FLOW
NOMINAL
PUMP
FLOW
(a 50 Hz)
COMPACT V
FLOWMETER
USUARIO
Servomotor
24
