Sperry Marine Visionmaster FT ECDIS, Руководство пользователя

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Basic Operation of ECDIS ECDIS User Guide
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Sensor Data Display
The VisionMaster FT system acquires data via interfaces connected to the
PCIO unit. The sensor information relating to own ship's
heading, course
and speed is displayed in the sensor data display at the top left of the
upper toolbar area.
Sensors provide sensor information for the following data types:
•
HDG (Heading)
•
STW (Speed Through Water)
•
COG (Course Over Ground)
•
SOG (Speed Over Ground)
For each data type, a sensor source must be selected to provide the
required data. The selected sensor source for each data type can be
viewed, or where necessary changed, from the Sensors menu.
The four data type fields are divided into three columns:
Caption
The captions are always the abbreviated data types listed above.
Readout
The readout shows the latest valid sample received by the selected sensor.
Valid sensor data is shown in green. If the data is currently invalid it is
shown in yellowish-orange.
A readout of true heading is always displayed, unless compass alignment
is being prompted, or a compass error
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has occurred.
If the SOG goes below 0.5 knots the COG value will show as a
series of green dashes. The COG will return to display an active
course bearing when SOG is at 0.5 knots or higher.
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A compass error will cause the heading readout to change from green to red and a compass
alarm will be raised. When heading data is unavailable the only presentation mode available is
North Up.
For certain types of compass input, it will be necessary to align the heading readout by
manually entering the current heading after the chart display is switched-on. The need for
alignment is indicated by the heading readout flashing green.