KROHNE OPTISOUND 3010 C, Руководство пользователя

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4 Mounting
OPTISOUND 3010 C • Four-wire 4 … 20 mA/HART
30504-EN-220310
Make sure that a blocking distance below the reference plane is main-
tained in which a measurement is not possible. The exact value of the
blocking distance is stated in chapter " Technical data ".
1
2
Fig. 3: Blocking distance to the max. level
1 blocking distance
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 OPTISOUND 3010
C. 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 radar (TDR).
Pressure/Vacuum