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KROHNE OPTISOUND 3030C 2wire EN User Manual

Page 16

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Guided radar is not influenced by foam generation and is

particularly suitable for such applications.

If there are strong air currents in the vessel, e.g. due to strong

winds in outdoor installations, or because of air turbulence, e.

g. through cyclone exhausting, you should mount OPTI-

SOUND 3030 C in a standpipe or use a different measuring

principle, e.g. radar or guided radar (TDR).

By using a standpipe (surge or bypass tube), the influence of

vessel installations, foam generation and turbulence is

excluded.
Standpipes must extend all the way down to the requested

min. level, as measurement is only possible within the tube.

max.

min.

1

Fig. 14: Standpipe in a tank

1

Vent hole ø 5 … 10 mm

OPTISOUND 3030 C can be used from tube diameters of

100 mm.
Avoid large gaps and thick welding joints when connecting the

tubes. Generally carry out a false echo storage.
Measurement in a standpipe is not recommended for very

adhesive products.

Air flow

Standpipe measurement

16

OPTISOUND 3030 C - 4 … 20 mA/HART

Mounting

30511

-EN
-050914