B&G HS2000 - Manual (Page 32)

HS 2000 User Manual
Part 2 - Operating Information
HB-0846-03
2-19
2.10.7 Depth
Menu Heading:
DEPTH
Function Text: DEPTH
Update Rate: Once per second
Units: Metres, feet and fathoms
Note
Audible, shallow/deep alarm available:
Shallow range 0-99.9m
Deep range unlimited
Depth is one of the most important functions on the boat, being an
essential navigational and safety tool. A datum adjustment allows
you to move the base point to give either depth under the keel or
actual water depth (see Paragraph 2.5.2).
Depth sounder performance is dependent on many factors:
transducer type and installation, boat speed, electrical noise, sea
state, sea bed conditions, air and plankton in the water. However
effective the equipment, there will always be times when a reliable
measurement of depth is not possible. In these cases, such as
following in the wake of another boat, the display shows the pattern
below to indicate a signal problem.
-
- -
-
The accuracy of the measurement is dependent on the velocity of
sound and the degree to which the sound penetrates the sea bottom.
Changes in the velocity of sound are not normally significant,
however, errors up to one foot can result from sound penetration into
very soft mud.
2.10.8 Distance to Waypoint
Menu Heading:
WAYPOINT
Function Text: DTW RMB or DTW GC
Update Rate: Provided by the position fixer
Units: Nautical miles
Note
Rhumb or Great Circle.
Once the position fixer is connected and sending information, it
automatically appears in the menu and becomes available for
display.