13
© MECON GmbH BA / mag-flux T4 / EN / 19-04
INSTALLATION AND MODE OF OPERATION
To ensure trouble-free operation, avoid direct magnetic fields outside the unit.
Fig. 10 Avoid magnetic fields
Avoid vibrations and shocks to ensure the long-term functionality of the device.
Fig. 11 Avoid shocks
3.5
Assembly
When installing the magnetic inductive flow sensor, both regulations and the instructions
in the corresponding operating instructions must be followed. In particular, the regulations
for earthing, potential equalisation and connecting a functional earth must be observed.
Potentials
The signal outputs (process outputs) and the mains supply of the mag-flux M1 transducer
are galvanically insulated from each other and from the measuring circuit. The housing
and the noise filters of the mains connection are connected with PE. The electrodes and
the measuring electronics are based on the potential of the functional earth FE of the
sensor. The FE is not connected to the PE, but these may be connected together in the
sensor connection. If the sensor is earthed using earthing rings, these must be connected
to the functional earth FE.
Cathodic protection
When using cathode protection devices which apply a voltage to the pipe wall to prevent
corrosion, they must be connected to FE.