Magnetic-inductive flow sensor Type VMM80

Product description

Possible areas of application Magnetic-inductive flow sensor Type VMM80

The magnetic-inductive induQ® flow sensors of the VMM series are thanks to their robust design suitable for use in harsher ambient conditions. The steel fitting is fully welded and therefore very stable and insensitive to interference.

The magnetic-inductive flow sensor type VMM80 is for example used in applications such as

  • Water and wastewater
  • Mining, cement and minerals
  • Pulp and paper industry
  • Steel industry
  • Energy industry and supply utilities
  • Agriculture



The smart flow sensors of the induQ® series operate according to the principle of induction: The measuring pipe is in a magnetic field (B). If an electrically conductive medium, with the flow (Q) to be measured, flows through the measuring pipe and thereby at a right-angle to the magnetic field, a voltage (U) is induced in the medium. This voltage is proportional to the average flow velocity and is picked up by two electrodes.

Regarding flow proportional output signals two versions are available:

  • Frequency output signal (standard)
  • Analog and frequency output signal (option)

The pulse rate can be configured at the factory.

Technical features

Technical features

Available in both separate and compact design
Nominal diameter DN 80

Flow range

Flow velocity range [m/s]
Volumetric flow range [m³/h]



Process connection
Process connection Flange connection in accordance with EN 1092-1 or
ANSI B16.5


v = 1...10 m/s
v < 1 m/s


Frequency output
Analogue output


±0.5 % of reading
±0.4 % of reading ±1 mm/s


±0.05 % per 10 K
±0.1 % per 10 K

Repeatability ±0.15 % of reading
Medium / min. conductivity of medium Water and other conductive liquids / 50 μS/cm

Medium temperature

Hard rubber

Process connections, steel
Process connections, stainless steel


0...90 °C
-20...100 °C at 40 bar
-20...150 °C at 25 bar
-20...180 °C at 16 bar
Min. -10 °C
Min. -20 °C

Ambient temperature

Hard rubber
Process connections, steel
Process connections, stainless steel


0...80 °C
-20...100 °C
Min. -10 °C
Min. -20 °C
-20...50 °C**

Compressive strength


ANSI B16.5 150 RF


PN 16
PN 40
19.6 bar (Process connection, steel)
15.9 bar (Process connection, stainless steel)

Frequency output

Pulse rate (factory-set) [1/m³]



Analogue output

Operating range


0...20 mA / 4 ... 20 mA, selectable

Alarm output




Power supply
230 VAC -15 % / +10 %, 50/60 Hz
18...36 VDC
Electrical connection Electrical connection Plug connector M20 x 1.5
Degree of protection IP67

* Test conditions: see datasheet

** The readability of the LCD display is restricted below 0 °C


Further details and accessories can be found in the datasheet.


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