Magnetic-inductive flow sensor SIKA VMI 10

Type: VMI1040K7NPT0A3
ex.: VMI1040K7NPT0A3 

VMI 10 K7-40, SP-0125

Measuring tube PEEK

G 1/2 external thread, stainless steel 1.4571

DN 10

PN 16

Max. medium temperature 90 ° C

Measuring range 2..40 l / min

Output 855 pulses / l

NPN

Round plug M12x1

 

How it works: The intelligent flow sensors of the induQ® series work according to the induction principle: the measuring tube is located in a magnetic field (B). If an electrically conductive medium with the flow rate (Q) to be determined flows through the measuring tube and thus at right angles to the magnetic field, a voltage (U) is induced in the medium which is proportional to the mean flow velocity and tapped by two electrodes. There are two variants available for a flow-proportional output signal: Frequency output signal (standard) - Analog and frequency output signal (option) The pulse rate is factory-configurable depending on the type.

 

The magnetic inductive flow sensor operates on the induction principle, d. h., through the movement of a conductor in a magnetic field generates a DC voltage: The measuring tube of the VMI is in a magnetic field (B). An electrically conductive liquid (Q) flows through the measuring tube. The positive and negative charge carriers are deflected in the opposite direction. The result is a voltage perpendicular to the magnetic field, which is tapped by the two electrodes. The induced voltage is proportional to the mean Flow velocity of the liquid. The electronics of the VMI convert the induced voltage into a flow-proportional frequency signal.