PCE VMI 10 [PCE-VMI10] Flow Meter

PCE-VMI 7 Electromagnetic Flow Meter

Flow Meter to measure all electrically conductive liquids / without any moving part / without mechanical wear / no additional pressure drop

The PCE-VMI Electromagnetic Flow Meter can be used in the construction of machines and plants thanks to its compact design. The PCE-VMI Electromagnetic Flow Meter is used where flow meters with moving parts such as vane flow meters cannot be used due to the dirt. The PCE-VMI Electromagnetic Flow Meter is used for the continuous flow measurement or the dosage of electrically conductive liquids with a minimum conductivity of 50 μS/cm.

The PCE-VMI Electromagnetic Flow Meter operates according to the electromagnetic induction principle: The measurement tube is locate on a magnetic field. If a conductive medium flows through the measurement tube perpendicular to the magnetic field, a strength proportional to the mean flow velocity is induced to the medium and it is captured by two electrodes. A frequency proportional to the flow is emitted as signal output.

Model

VMI 7

Measurement range

1 ... 20 l/min

Accuracy

±2 % of the measurement value

Sending a signal from approx. 0,5 l/min

Repeatability

2 %

Liquid conductivity

Water and other conductive liquids  / 50 µS/cm 

(lower conductivities affect to the measurement accuracy)

Liquid temperature max. 75 ºC

Environmental temperature 5 ... 70 ºC

Nominal pressure PN 16

Nominal diameter DN 7

Connection type G 1/2"-ISO 228 external

flow indication

                    green LED, proportional to the flow

Output signals

Pulse repetition frequency

855 pulses/l

Resolution

1,2 ml/pulse

Waveforms

 NPN rectangular signal open collector, working cycle 50:50

Signal intensity max. 20 mA, limited current

Maximum Pull-up voltage

30 VDC

Optional:

 4 ... 20 mA analog output (with additional cost)

General Specifications

Response time <500 ms

Electrical connection M12x1 connector

Power supply 24 VDC ±10 %

Input current maximum 80 m

Counter measurements over voltage resistant (up to 30 V) and protected against polarity reversal (up to -30 V)

Protection type IP 65