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DSM250 User’s Manual
Page 42 Revision 1.4.16a
5.2.7.4 Boat Speed
This menu item allows you to select the units to be used for the display of all boat speed-related
information. Units that may be selected are the following:
• Knots
• Miles/Hour
• Km/Hour
• Meters/second
5.2.7.5 Wind Speed
This menu item allows you to select the units to be used for the display of all wind speed-related
information. Units that may be selected are the following:
• Knots
• Miles/Hour
• Km/Hour
• Beaufort
• Meters/second
5.2.7.6 Wind True Vessel Ref.
This menu items allows you to select whether the true wind direction and speed referenced to the
vessel are relative to the water or the ground. Sailors are generally interested in measurements
relative to the water while power boaters are interested in measurements relative to the ground.
Station is for home applications (i.e., fixed mounting location unlike a vessel that changes direction).
Formats that may be selected are the following:
• Water
• Ground
• Station
5.2.7.7 Temperature
This menu item allows you to select the units to be used for the display of all temperature-related
information. Units that may be selected are the following:
• °F
• °C
5.2.7.8 Atmospheric Pressure
This menu item allows you to select the units to be used for the display of atmospheric (barometric)
pressure. Units that may be selected are the following:
• Inches Mercury (in Hg)
• Bar
• Millibars
• Millimeters Mercury (mm Hg)
• kPa