Siemens SITRANS F M MAGFLO Instructions page 4

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SITRANS F M MAGFLO
Potential equalisation
Electrically conductive
piping
Non-conductive piping
Cathodic protected piping
4
Electromagnetic flowmeter type MAG 3100
With earthing electrodes
Without earthing electrodes
Potential equalisation is carried out with the
built-in earthing electrodes.
Use an earth straps on one side.
Here an earthing flange is used, placed bet-
ween flowmeter and the adjacent pipe flange.
Liner
material
All except
PTFE
PTFE
Special attention must be given to systems
with cathodic protection.
By compact mounting:
The transmitter must be supplied through an
isolation transformer. The terminal "PE" must
never be connected.
By remote mounting:
The screen must only be connected at the
sensor end via a 1.5 µF condensator. The
screen must never be connected at both ends.
By isolated sensor:
If above mentioned connections are unaccept-
able the sensor must be isolated from the pipe
work.
Suitable
earthing flange
Type C
Type E