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WARNING
Radio Frequency
Radiation Hazard
The radar antenna emits electromagnetic
radio frequency (RF) energy which can be
harmful, particularly to your eyes. Never
look directly into the antenna aperture from
a close distance while the radar is in
operation or expose yourself to the trans-
mitting antenna at a close distance.
Distances at which RF radiation levels of
100 and 10 W/m
2
exist are given in the
table below.
Note: If the antenna unit is installed at a
close distance in front of the wheel house,
your administration may require halt of
transmission within a certain sector of
antenna revolution. This is possible - Ask
your FURUNO representative or dealer to
provide this feature.
MODEL
Distance to
100 W/m
2
point
Distance to
10 W/m
2
point
MODEL
1833C-BB
Nil
Nil
1.8 m
SAFETY INSTRUCTIONS
Do not open the equipment
unless totally familiar with
electrical circuits and
service manual.
Only qualified personnel
should work inside the
equipment.
Wear a safety belt and hard
hat when working on the
antenna unit.
Serious injury or death can
result if someone falls from
the radar mast.
WARNING
Construct a suitable service platform
from which to install the antenna unit.
Serious injury or death can result if some-
one falls from the radar mast.
Turn off the power at the mains switch-
board before beginning the installation.
Fire, electrical shock or serious injury can
result if the power is left on or is applied
while the equipment is being installed.
ELECTRICAL
SHOCK
HAZARD
MODEL
1933C-BB
MODEL
1943C-BB
2.7 m
Nil
1.9 m
Observe the following compass safe
distances to prevent deviation of a
magnetic compass.
Standard
Steering
Processor unit
MODEL1833C-BB antenna unit
MODEL1933C-BB antenna unit
MODEL1943C-BB antenna unit
1.75 m
1.10 m
0.45 m
0.30 m
Control unit
0.90 m
0.70 m
1.00 m
1.00 m
0.80 m
0.80 m
CAUTION
MODEL1953C-BB antenna unit
1.00 m
0.75 m
MODEL
1953C-
BB
XN12A
XN13A
Nil
2.5 m
2.3 m
Power supply unit (1953C-BB)
1.40 m
0.95 m
MODEL1823C-BB antenna unit
1.25 m 0.85 m
MODEL
1823C-BB
Nil
0.5 m
Memory card I/F unit
0.90 m
0.60 m