DEPTH GAUGE/SOUNDER
In theory the depth gauge picks up a bottom signal sent through a
transducer to the helm gauge unit which is converted to readings in
feet, meters, or fathoms, and displayed on the gauge. The unit features
shallow or deep water alarms, both of the audio and visual type, and
keel offset.
Refer to the engine and controls chapter for gauge use. Electrical
systems are described in the systems chapter. Technical drawings are
in the technical chapter.
Operation
The depth fi nder will display depths of 2-199 feet, 1-92 meters, or
1-54 fathoms. To accommodate greater depths to be displayed in
the feet mode (ft), the depth sounder will automatically change to
the fathoms (f) mode and continue to display depths to around 54
fathoms. When the depth becomes larger than 200 feet, the display
will return to the feet mode. Limits on depth will vary depending on
transducers and bottom conditions.
If the reading is less than 19.9 feet, meters, or fathoms, 1/10th
increments will be displayed. If the reading is more than 19.9 feet, all
readings will be in whole numbers.
The depth fi nder features an audible and LCD displayed depth alarm
with adjustable shallow and deep limits and a depth below keel offset
feature. These settings once made are stored in memory and will
remain, even if the battery is not connected.
6-16
Chapter 6
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