Siemens SITRANS LR200 7ML5422 Operating Instructions Manual page 205

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.
microwaves
the term for the electromagnetic frequencies occupying the portion of the radio frequency
spectrum from 1 GHz to 300 GHz.
multiple echoes
secondary echoes that appear as double, triple, or quadruple echoes in the distance from
the target echo.
Near Blanking
see Blanking.
nozzle
a length of pipe mounted onto a vessel that supports the flange.
parameters
in programming, variables that are given constant values for specific purposes or processes.
polarization
the property of a radiated electromagnetic wave describing the time-varying direction and
amplitude of the electric field vector.
polarization error
the error arising from the transmission or reception of an electromagnetic wave having a
polarization other than that intended for the system.
SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE
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