VEGA VEGASON 61 Foundation Fieldbus - Manual (Page 11)

11
4 Mounting
VEGASON 61 • Foundation Fieldbus
28790-EN-130417
1
2
Fig. 3: Minimum distance to the max. level
1 Dead band
2 Reference plane
Information:
If the medium reaches the transducer, buildup can form on it and
cause faulty measurements later on.
1 3 2
100%
0%
Fig. 4: Measuring range (operating range) and max. measuring distance
1 full
2 empty (max. measuring distance)
3 Measuring range
Gauge pressure in the vessel does not influence VEGASON 61. Low
pressure or vacuum does, however, damp the ultrasonic pulses. This
influences the measuring result, particularly if the level is very low.
With pressures under -0.2 bar (-20 kPa) you should use a different
measuring principle, e.g. radar or guided microwave.
4.2 Mounting instructions
Screw VEGASON 61 into the mounting socket with an appropriate
spanner applied to the hexagon of the process fitting. Max. torque see
chapter "Technical data".
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
Pressure/Vacuum
Screwing in