DISTRIBUTION
BOX
FE-702
DISPLAY UNIT
FE-701
JUNCTION BOX
JISF8821-1M0 0-20A3P
MATCHING BOX
MB-502 (for 50B-6B)
MB-504 (for 200B-8B)
JB
IEC 61162-1
EIA-232C
IEC 61162-1
Navigation Device
Navigation Device
Personal Computer
IEC 61162-1
JB
TRANSDUCER
SWITCH BOX
EX-8
DIGITAL DEPTH
INDICATOR
FE-720
CONTACT CLOSURE
Alarm Unit
AU-12
: Standard Supply
100/110-115/
200/220-230 VAC
or
24 VDC
: Optional Supply
Terminal Box
DS-802
: Local Supply
JB
JB
DISTRIBUTION
BOX
MB-1200
JB
TRANSDUCER
50B-6B,
200B-8B
FE-700 system configuration
The FE-700 uses ultrasonic pulses to detect the seabed and other underwater ob ects. The display unit
contains all basic electric circuits and logic processor. Electrical pulses are converted into acoustical
energy in the transducer fitted on the ship s hull. The processor measures the time of pulses travelling
between the seabed and transducer and displays the water depths in the graphical form or other forms.
The transducers have a specific beam width with respect to their working fre uency, 50 k or 200 k .
The high fre uency has a narrow beamwidth and is immune to aeration when the ship is going astern or in
rough weather. The low fre uency has a wide beamwidth and more powerful sounding capability.
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