Chapter: 2. Operation
Fixed Key Functions
Depth Range
The DEPTH RANGE button can be used to set the depth limit between 10 and 1600 m. Standard values
available by repeatedly pressing the button are 10, 50, 100, 500 and 1000 m.
Picture Speed
Picture speed may be referred to either time or vessel speed. If no speed log is connected, picture speed
will always be referred to time, (“min:sec/div”). Time referenced picture speed may be selected between
20 seconds per division and 5 minutes per division. Vessel speed referenced picture speed may be selected
between 0.04 and 5 nautical miles per division. If a speed log is connected, it is possible to select different
“PICT.SPEED” units in screen 5. The ping-rate range depends on the depth range, and the fastest ping rate at
shallow depths is about 5 pings per second.
Screen Select
The SCREEN SELECT button facilitates selection of one of the 10 screen and soft key layouts. The 3
primary operation screens may be cycled by repeatedly pressing the SCREEN SELECT button. Access to
the remaining screens is through encoder operation. The screens are cycled in an endless, bidirectional loop,
e.g. turning the encoder counter-clockwise, will activate screen 10 after screen 1. Turning the encoder with
no buttons pressed always force screen 1.
Day/Night and back light adjustment (brightness)
Day/Night vision may be selected by pressing this button. These two modes differs by colour presentation,
which are optimized for different ambient light conditions.
Fixed keys
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