VEGA VEGAPULS 81 - Manual (Page 36)

36 VEGAPULS 64 and 81
Mounting and installation: Measurements of liquids
Rod antenna on DIN-socket piece
Rod antenna directly on vessel opening
≤ 150 mm
Opening
ø 50 mm
Mounting directly on the flat vessel ceiling
Reference pane
Horn antenna directly on the vessel ceiling
Dependent on the stability of the vessel (sen-
sor weight), the flat mounting directly on the
vessel ceiling would be a good and favourable
solution. The top side of the vessel is the refer-
ence pane.
Rod antenna
Rod antenna on DIN-socket piece
The PTFE (Teflon) rod antenna is especially
used in aggressive products such as lyes and
acids. Applications in the food processing
industry with aseptic vessels require reaction
neutral measuring systems often with smaller
vessel openings. The teflon rod antenna is not
only reaction neutral but can be also mounted
to very small vessel openings with 50 mm
access.
For measurements of liquids with the Teflon
rod antenna, the mounting is made on a
straight DIN-socket piece. The socket however
must not be longer than 150 mm (when using
a longer antenna, not longer than 250 mm).
The rod antenna is available in flange sizes of
DN 50, DN 80, DN 100 and DN 150.
Rod antenna directly on vessel opening
Alternatively to the socket mounting, the rod
antenna can also mounted directly to the
circular vessel opening (holes).
Note that the mechanical load of the PTFE-rod
antenna is restricted. If the antenna is sub-
jected to lateral power, their will be danger of
deformation or break.