Design, Assembly and Service Manual
Page 14 of 44
Induction flow meter FMG600 series
Make sure that the adjoining piping is clamped/supported as close to the sensor as possible, to prevent
vibrations and damage to the sensor.
Undesirable sensor vibrations
Sensor bypass
In applications where continuous liquid flow is essential, a bypass shall be provided to allow for sensor
servicing. A sensor bypass may be also reasonable solution in the cases where, to dismantle the flow sensor
from the piping, liquid from a very long piping section would have to be discharged.
5.2. Sensor earthing
The correct meter function requires that the sensor and adjoining piping sections be connected by low-
impedance earthing conductors to the earth potential and the protection conductor of the power source. The
overall arrangement shall be such that the potentials of the measured liquid at the sensor input and output
sides are close to the ground.
5.2.1. Flanged version
With a flanged sensor installed in conductive piping, the flanges shall be electrically connected and the
piping put to the earth.
Flange earthing connection
Earthing rings
Should the adjoining piping sections be non-conductive, grounding rings or similar arrangement shall be
used to ensure that the electric potential of the measured liquid is put to the earth.
With a remote version, it is recommended to electrically connect flow sensor with electronics housing box
with conductors AWG10 or AWG12 to assure stabilization of the electric potentials.
