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I [mA]

I 1

I 2

Fmax

0 20

B0088

Fig. 28: Rate(frequency)-Current Diagram for Linear control

Plot a diagram similar to the one above – with values for

(I1, F1) and (I2, F2) – so that you can set the pump as

desired!

„Lower side band“

Using this type of processing, you can control a metering pump using the

current signal as shown in the diagram below.

However, you can also control two metering pumps for different feed

chemicals via a current signal (e.g. one acid pump and one alkali pump

using the signal of a pH sensor). To do this, connect the pumps electrically

in series.

The "Lower sideband" symbol appears in the LCD display. Below I1, the

pump works at a rate of F1 - above I2 it stops. Between I1 and I2 the

stroke rate varies between F1 and F2 in proportion to the signal current.

I [mA]

I 1 I 2

0 20

a) b)

Fmax

B0089

I [mA]

I 1

I 2

0 20

Fmax

Fig. 29: Frequency-current diagram for a) Lower side band, b) Upper side band

„Upper side band“

Using this processing type, you can control a metering pump using the

current signal as shown in the diagram above.

However, you can also control two metering pumps for different feed

chemicals via a current signal (e.g. one acid pump and one alkali pump

using the signal of a pH sensor). To do this, connect the pumps electrically

in series.

The "Upper sideband" symbol appears in the LCD display. Below I1, the

pump is stationary - above I2 the pump works at rate F2. Between I1 and

I2 the stroke rate varies between F1 and F2 in proportion to the signal cur‐

rent.

Setting

Brand	ProMinent
Model	Sigma/ 2 Control S2Cb
Category	Water Pump
Language	English

ProMinent Sigma/ 2 Control S2Cb User Manual

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ProMinent Sigma/ 2 Control S2Cb Specifications

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