VEGA VEGAPULS 56 Profibus PA - Manual (Page 24)

24 VEGAPULS 56 Profibus PA
0
2,4 m
3,8 m
2,4 m
3,8 m
10 m
0 m
20 m
14˚
22˚
50 %
100 %
Heat insulation
Mounting on longer DIN socket piece
> 10 mm
Emission cone of a DN 250 horn antenna
Meas. distance
Mounting and installation
Heat insulation
In process temperatures of more than 200°C
the rear of the flange must be insulated to
protect the sensor electronics from radiated
heat.
We recommend integrating the sensor insula-
tion into the vessel insulation and extending it
approx. up to the first tube segment.
3.2 Measurement of liquids
Sensor on DIN socket piece
Most commonly, the mounting of radar sen-
sors is done on short DIN socket pieces. The
lower side of the instrument flange is the
reference plane for the measuring range. The
antenna should always protrude out of the
flange pipe.
Mounting on DIN socket piece
Reference plane
With a longer DIN socket piece, the horn
antenna must protrude at least 10 mm out of
the socket.
When mounting on dished vessel tops, the
antenna must also protrude at least 10 mm
beyond the longer side of the socket).
40°C
60°C
100°C 240°C
350°C
Vessel insulation
max. 350°C
emitted power
emitted power