Simrad SN90, Operator'S Manual

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5 Investigate the information provided by the information pane.
By default, the depth is shown in metres. You can change the unit of measurement
on the
Units
page. The
Units
page is located in the
Installation
dialog box.
6 Select
Setup
in the top right corner of the information pane to change the pane
parameters.
Selecting
Setup
in the Depth information pane opens the
Bottom Detection
page in
the
Information Pane Options
dialog box. The purpose of the
Bottom Detection
parameters are to define the upper and lower depth limits most likely to be used
during the SN90 operation.
7 Select
Close
in the top right corner to close the information pane.
Investigating the biomass
The Biomass information pane displays an index of the biomass in the in the current
Inspection view. The biomass index is the
s
A
value, or Nautical area scattering
coefficient (NASC), measured with unit m 2 /nmi 2 .
Context
The digit shown in the Biomass information pane is a calculated index.
It is possible to convert the biomass index to weight (for example in metric tons). Based
on practical use of the SN90 in different fisheries, you will soon be able to estimate the
weight when you know the type of fish and their sizes.
Procedure
1 Click in the view you want to activate.
The active view is identified with a thicker border. The information provided will
only be valid for the selected view.
2 On the top bar, select the appropriate button to open the information pane.
3 Click the bottom right corner of the information pane, and drag to requested size.
Operating procedures