VEGA VEGAPULS 62 (≥ 2.0.0 - ≥ 4.0.0) Foundation Fieldbus - Manual (Page 25)

25
4 Mounting
VEGAPULS 62 • Foundation Fieldbus
36506-EN-121011
max. 50 mm (1.97"
)
1
2
3
Fig. 21: Mounting of the instrument with insulated vessels.
1 Electronics housing
2 Distance piece
3 Vessel insulation
For level measurements in concrete silos, the sensors are often
mounted in protective boxes. These boxes can be for example metal-
lic, closed subsurface enclosures.
1 2
Fig. 22: Mounting of the instrument in an subsurface enclosure
1 Subsurface enclosure
2 Concrete bottom
For this application, the minimal amounts of stray radiation from the
sensor can be reflected and strengthened by the walls of the subsur-
face enclosures. In the case of sensors with plastic housings, this can
lead to coupling disturbances. This can be avoided by using a sensor
with aluminium or stainless steel housing.
The short examples give you introductory information on the flow
measurement. Detailed planning information is available from flume
manufacturers and in special literature.
Installation in subsurface
enclosures
Flow measurement with
rectangular flume