Measurement Range - Siemens SITRANS L Operating Instructions Manual

Example after Auto False Echo Suppression
①
②
③
C.4

Measurement Range

Near range
Near Range programs SITRANS LR200 to ignore the zone in front of the antenna. The default
blanking distance is 50 mm (1.97") from the end of the antenna.
Near Range allows you to increase the blanking value from its factory default. But Auto False
Echo Suppression is generally recommended in preference to extending the blanking
distance from factory values.
Far range
Far Range 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 to 30% or 40% can provide stable empty vessel readings.
SITRANS LR200 with PROFIBUS PA
Operating Instructions, 07/2021, A5E32337680-AF
Learned TVT
False echo
Auto False Echo Suppression Range
Technical reference
C.4 Measurement Range
Auto False Echo Suppression
Range set to 2 m
④ Default TVT
⑤ Material echo
⑥ Echo marker
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