Endress+Hauser promag 31, Operating Manual

Page: 21 / 60

Equalising currents in unearthed
metal pipes
The medium may be earthed.
Make the electrical connection from
flange to flange and to the measuring
unit.
2.8 Earthing in an area with severe interference
In order to make the most of the electro-
magnetic compatibility (EMC) of the
Promag 31, it is advisable to provide
two flange-to-flange links and to con-
nect them jointly with the transmitter
housing to earth potential.
Example: Promag 31 F
b
a
028y
25
6 mm
2
Cu
Fig. 27
b
a02
8y
2
7
6 mm
2
Cu
Fig. 28
Promag 31 2. Mounting and Installation
Hauser 21