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FOREWORD
A Word to LS-4100
Owners
Congratulations on your choice of the
FURUNO LS-4100 5” Echo Sounder.
We are confident you will see why the
FURUNO name has become
synonymous with quality and reliability.
For over 50 years FURUNO Electric
Company has enjoyed an enviable
reputation for innovative and
dependable marine electronics
equipment. This dedication to
excellence is furthered by our extensive
global network of agents and dealers.
This equipment is designed and
constructed to meet the rigorous
demands of the marine environment.
However, no machine can perform its
intended function unless operated and
maintained properly. Please carefully
read and follow the recommended
procedures for operation and
maintenance.
We would appreciate hearing from you,
the end-user, about whether we are
achieving our purposes.
Thank you for considering and
purchasing FURUNO equipment.
Features
The FURUNO LS-4100 is a dual
frequency (50 kHz and 200 kHz)
monochrome LCD echo sounder.
Comprised of a display unit and a
transducer, the LS-4100 displays
underwater conditions on a bright 5-inch
monochrome LCD.
The main features of the LS-4100 are
• Bright 5-inch monochrome LCD gives
excellent readability even in broad
daylight.
• Automatic function permits
unattended adjustment of range and
gain. The range scale and gain
automatically change to display the
bottom in the darkest gray tone on the
lower half of the screen.
• User-programmable nav data displays
provide analog and digital nav data.
• Alarms: Bottom, Fish (bottom-lock
and normal), Speed, Water
Temperature and Arrival. (Speed and
arrival alarms require appropriate
sensor; water temperature alarm
requires water temperature data.)
• White line feature helps discriminate
fish lying near the bottom.
• Destination waypoint feature provides
range, bearing, and time-to-go to
destination waypoint. (up to 12
waypoints)
• Waterproof construction permits
installation on open bridge.