VEGA VEGAPULS 56K - Manual (Page 17)

VEGAPULS 56K 17
22915-EN-041227
Pipe antenna: The surge pipe open to the bottom
must have a ventilation or compensation hole on top
The polarisation direction is in the same plane as the
marking hole. The sensor must be aligned with the
marking hole to the rows of holes or the openings.
Correct Incorrect
Installation errors in standpipe
Missing ventilation hole
Pipe antenna systems must be provided with
a vent hole at the upper end of the surge
pipe. A missing hole causes wrong measure-
ments.
Wrong polarisation direction
When measuring in a surge pipe, especially
when there are holes for mixing, it is impor-
tant that the radar sensor is aligned with the
rows of holes. The rows of holes of the surge
pipe (displaced by 180°) must be in one
plane with the polarisation direction of the
radar signals. The polarisation direction is the
same plane as the marking hole.
Marking
hole
DN 50
ø50
Mounting and installation
Lockable measuring pipe on a pipe antenna system
Ball valve
Standpipe ventilation
Deflector