Measurement Range - Siemens SITRANS LUT400 Operating Instructions Manual

Example after Auto False Echo Suppression
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A.2.2

Measurement Range

Near Range
Near Range (2.2.4.) (Page 172) programs SITRANS LUT400 to ignore the area in front of
the transducer. The default blanking distance is 27.8 cm (0.91 ft) from the sensor reference
point.
Near Range allows you to increase the blanking value from its factory default. But Shaper
Mode (2.12.3.4.) (Page 223) is generally recommended in preference to extending the
blanking distance from factory values.
Far Range
Far Range (2.2.5.) (Page 172) can be used in applications where the base of the vessel is
conical or parabolic. A reliable echo may be available below the vessel empty distance, due
to an indirect reflection path.
Increasing Far Range by 30% or 40% can provide stable empty vessel readings.
SITRANS LUT400
Operating Instructions, 07/2019, A5E33329501-AC
Learned TVT
Auto False Echo Suppression Range
Default TVT
Material echo
Echo marker
False echo
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