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Chapter 1: Operation
1
Chapter 1: Operation
1.1 Introduction
Your ST40 Compass instrument:
• Provides true and magnetic bearing information.
• Enables a locked bearing to be defined either manually, or
automatically by a course computer. In this mode, the instrument
shows the deviations from the locked bearing and the direction to
steer to achieve the locked bearing.
CAUTION
Your instrument is calibrated to factory (default) settings when
first supplied and must therefore be calibrated before use, to
ensure optimum performance on your vessel. Do NOT use the
instrument until the calibration procedures have been
satisfactorily completed, using the procedures in Chapter 4,
Calibration.
Coloured bezel and Desktop Mounting Bracket options are available
for your ST40 instrument. Contact your Raymarine dealer for further
information.
1.2 Operating procedures
Operating information is presented in flow chart form. The flow charts
show the various operating screens and key presses necessary to carry
out the various instrument functions. Key presses are momentary unless
otherwise stated.
Silencing alarms
To silence an alarm (see the Alarms section, later in this chapter),
momentarily press any one of the instrument keys.
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