Siemens SITRANS L Operating Instructions Manual page 222

Glossary
Echo Confidence
describes the quality of an echo. Higher values represent higher quality. Echo Threshold
defines the minimum value required for an echo to be accepted as valid and evaluated.
Echo Lock Window
a window centered on an echo in order to locate and display the echo's position and true
reading. Echoes outside the window are not immediately processed.
Echo Marker
a marker that points to the processed echo.
Echo Processing
the process by which the radar unit determines echoes.
Echo Profile
a graphical display of a processed echo.
Echo Strength
describes the strength of the selected echo in dB referred to 1 μV rms.
false Echo
any echo which is not the echo from the desired target. Generally, false echoes are created
by vessel obstructions.
frequency
the number of periods occurring per unit time. Frequency may be stated in cycles per second.
Hertz (Hz):
unit of frequency, one cycle per second. 1 Gigahertz (GHz) is equal to 10
horn antenna
a conical, horn-shaped antenna which focuses microwave signals. The larger the horn
diameter, the more focused the radar beam.
inductance
the property of an electric circuit by virtue of which a varying current induces an
electromotive force in that circuit or in a neighboring circuit. The unit is a Henry.
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Hz.
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SITRANS LR200 with PROFIBUS PA
Operating Instructions, 07/2021, A5E32337680-AF