VEGA VEGAPULS 51V…54V - Manual (Page 39)

VEGAPULS 51 V … 54 V 39
Mounting and installation - Installation error
Surge pipe without ventilation hole
A surge pipe, also called pipe antenna, must
be provided with a breathing hole on the
upper edge of the surge pipe. A missing hole
will cause faulty measurements.
Pipe antenna: The surge pipe open to the
bottom must have a ventilation hole on top
VEGAPULS 54 on a surge pipe: The
polarization direction is in line with the type
plate. The sensor must be directed with the
type plate to the rows of holes
Sensor in wrong polarization direction
on the surge pipe
When measuring in a surge pipe, especially if
there are holes in the pipe for mixing, it is
important that the radar sensor is directed to
the row of holes.
The two rows of holes of the surge pipe
displaced by 180° must be in line with the
polarization direction of the radar signals. The
polarization direction is in line with the type
plate.
Correct Wrong
Correct Wrong
Type plate