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Operation
November 2017
Figure 7-59. Side and Bottom Margins
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r = Bottom Margins
Beams Activation tab
The Beams Activation tab allows choosing manual or automatic (by the algorithm) beams selection. By
default, the beams are selected automatically. Part of the beams will be removed depending on silo
dimensions.
High (7KHz), Med (4.5KHz) and Low (2.3KHz) Frequency beams represent three separate
transmissions which emit signals from all three antennas simultaneously.
30, 90, 150, 210, 270 and 330 degrees directions represent six separate directional transmissions
which improve the algorithm's analysis of the returned echoes. All six transmissions are transmitted in
the same frequency as the Med frequency.
Beams can be enabled or disabled by removing the check box from the Auto Beam Selection box. A
selection of less than three directional beams is not allowed. Only a selection of at least three
consecutive beams is possible, for example: Direction 30, Direction 330 and Direction 270.
Automatic Beams Range: Enabled by default. The beams range is limited according to the range at
which the beam hit the vessel wall. Low frequency beam has wider angle and thus is more limited. High
frequency beam is very narrow and has no limitations. At every possible beam selection the algorithm
makes sure that at least one beam has enough range to 'see' the bottom of the vessel. This limitation is
visualized in the Echo Curve analysis window as the orange vertical line.
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Reference Manual
00809-0100-4570, Rev DA
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Operation
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