• The descriptions in this manual are intended for readers with a solid knowledge of English.
• No part of this manual may be copied or reproduced without written permission.
• If this manual is lost or worn, contact your dealer about r eplacement.
• The contents of this manual and equipment specifications are subject to change withou t notice.
• Store this manual in a convenient place for future reference.
• FURUNO will assume no responsibility for the damage caused by impr oper use or modification
of the equipment (including software) by an unauthorized agent or a third party.
• When it is time to discard thi s product it must be done accord ing to local regulations f or disposal
of industrial waste. For disposal in the USA, refer to the Electronics Industries Alliance (http://
www.eiae.org/).
i
SAFETY INSTRUCTIONS
The user and installer must read the appropriate safety instructions before attempting to install
or operate the equipment.
Indicates a potentially hazardous situation which, if not avoided,
WARNING
CAUTION
Warning, Caution
Safety instructions for the operator
could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
Prohibitive Action
Mandatory Action
WARNING
Do not open the equipment.
Only qualified personnel should work
inside the equipment.
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury can
result.
Turn off the power immediately if the
equipment is emitting smoke or fire.
Fire or electrical shock can result if the
power is left on.
Turn off the power immediately if water
leaks into the equipment or an object
is dropped inside the equipment.
Continued use can cause fire or electrical
shock.
Turn off the power immediately if you
feel the equipment is acting abnormally.
If the equipment is hot to the touch or is
emitting strange noises, turn off the power
immediately and contact your dealer for
advice.
WARNING
WARNING
Do not operate the equipment with
wet hands.
Electrical shock can result.
Do not place liquid-filled containers
on the top of the equipment.
Electrical shock can result.
Do not install the equipment where
it may be subjected to rain or water
splash.
Fire or electrical shock can result if water
gets inside the equipment.
Use the proper fuse.
Use of a wrong fuse can damage the
equipment and may cause fire.
A warning label is attached to the equipment.
Do not remove this label. If the label is missing
or illegible, contact a FURUNO agent or dealer
about replacement.
To avoid electrical shock,
do not remove cover. No
user-serviceable parts
Only qualified personnel should work
inside the equipment.
Turn off the power before beginning
the installation.
Fire or electrical shock can result if the
power is left on.
Be sure no water leaks at the transducer
and temperature sensor.
Water leakage can sink the vessel. Also,
confirm that neither the transducer or
sensor will loosen by vibration. The
installer is solely responsible for the
installation.
Confirm that the power supply voltage
is within the rating of this equipment.
Incorrect voltage will damage the equipment and may cause fire.
WARNING
CAUTION
The transducer cable must be handled
carefully, following the guidelines
below.
• Keep fuels and oils away from the
cable.
• Locate the cable away from chemicals.
• Locate the cable away from locations
where it might be damaged.
Do not apply the power with the
transducer exposed to air.
Damage to the transducer may result.
Observe the following compass safe
distances to prevent interference to a
magnetic compass:
Congratulations on your choice of the FURUNO DFF3 Network Sounder. We are confident you
will see why the FURUNO name has become synonymous with quality and reliability.
For 60 years FURUNO Electric Company has enjoyed an enviable reputation for quality marine
electronics equipment. Thi s dedicati on to exc ellence i s furthere d by our extensiv e global net work
of agents and dealers.
This equipment is designed and cons tructed to me et the rigorous demands of the marine envi ronment. 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.
Thank you for considering and purchasing FURUNO.
Features
The DFF3 network sounder is a dual fr equency echo sounder designed for use with t he FURUNO
NavNet/NavNet vx2/NavNet 3D series. The DFF3 feeds data about underwate r conditions via a
LAN.
A few of the features are
• FURUNO Free Synthesizer (FFS) transceiver design allows use of user-selectable operating
frequencies (28 - 200 kHz).
• Automatic operation selects correct range and gain to show fish echoes and bottom in both
shallow and deep waters.
• Improved discrimination of near-surface fish by eliminating the transmission line.
• Heaving compensation* stabilizes the picture against ship’s pitching and rolling.
* Requires NavNet 3D display device and Satellite Compass SC-30, heading data fed in NMEA
®
2000
• ACCU-FISH
(Transducer 50/200-1T only for use with Na vNet 3D.)
• 1/2/3 kW output
Note: The terms “NavNet” and “Navnet 3D” refer to the models listed below.
Model 17x2 Series, Model 17x2C Series,
Model 17x4 Series, Model 17x4C Series,
GD-1720, GD-1720C,
Model 18x3C(-BB) Series, Model 18x4C(-BB) Series,
Model 19x3C(-BB) Series, Model 19x4C(-BB) Series,
GD-1900C(-BB), GD-1920C(-BB)
format.
®
feature estimates length and depth of individual fish.
Navnet/NavN et vx 2NavNet 3D
MFDBB, MFD8, MFD12
v
SYSTEM CONFIGURATION
Basic configuration shown with solid line.
NavNet Series
NavNet 3D Series
12-24 VDC
Rectifier
PR-62
100/110/115/
220/230 VAC
1
φ,
50/60 Hz
HUB*
ST-BY
* HUB-100 (For NavNet)
HUB-101 (For NavNet 3D)
Network Sounder
DFF3
NETWORK SOUNDER
DFF3
Speed/Temperature Sensor
ST-02MSB
ST-02PSB
Temperature Sensor
T-02MTB
T-02MSB
T-03MSB
High
Freq.
Transducer
Low
Freq.
Transducer
vi
1.MOUNTING
1.1Equipment Lists
Standard supply
NameTypeCode No.QtyRemarks
Network SounderDFF3
Spare PartsSP02-05601001-033-7401 setFuse
Installation M aterialsCP02-08500000- 011-9171 set- Power cable (3.5 m)
—
1
- LAN cable (5 m for NavNet 3D)
- Self-tapping screws
Optional supply
NameTypeCode No.Remarks
Transducer1/2/3kW available. See
Thru-hull pipe—
Tank—
Cable AssemblyMJ-A6SPF0017-010C001-159-704-101 m, for NavNet
next page for choices.
MJ-A6SPF0017-050C001-159-705-105 m, for NavNet
MJ-A6SPF0017-100C001-159-706-1010 m, for Na vNet
MJ-A6SPF0017-200C001-159-707-1120 m, for Na vNet
—
MJ-A6SPF0017-300C001-159-708-1130 m, for Na vNet
MOD-Z072-020+000-167-175- 102 m, for NavNet 3D (HUB-101)
MOD-Z072-100+001-167-177- 1010 m, for NavNet 3D (HUB-101 )