• This manual has been authored with simplified grammar, to meet the needs of international users.
• The operator of this equipment must read and follow the descriptions in this manual. Wrong operation or maintenance can cancel the warranty or cause injury.
• Do not copy any part of this manual without written permission from FURUNO.
• If this manual is lost or worn, contact your dealer about replacement.
• The contents of this manual and equipment specifications can change without notice.
• The example screens (or illustrations) shown in this manual can be different from the screens
you see on your display. The screens you see depend on your system configuration and equipment settings.
• Save this manual for future reference.
• Any modification of the equipment (including software) by persons not authorized by FURUNO
will cancel the warranty.
• All brand and product names are trademarks, registered trademarks or service marks of their
respective holders.
How to discard this product
Discard this product according to local regulations for the disposal of industrial waste. For disposal
in the USA, see the homepage of the Electronics Industries Alliance (http://www.eiae.org/) for the
correct method of disposal.
How to discard a used battery
Some FURUNO products have a battery(ies). To see if your product has a battery, see the chapter
on Maintenance. Follow the instructions below if a battery is used. Tape the + and - terminals of
battery before disposal to prevent fire, heat generation caused by short circuit.
In the European Union
The crossed-out trash can symbol indicates that all types of batteries
must not be discarded in standard trash, or at a trash site. Take the
used batteries to a battery collection site according to your national
legislation and the Batteries Directive 2006/66/EU.
In the USA
The Mobius loop symbol (three chasing arrows) indicates that Ni-Cd
and lead-acid rechargeable batteries must be recycled. Take the used
batteries to a battery collection site according to local laws.
In the other countries
Ni-CdPb
Cd
There are no international standards for the battery recycle symbol. The number of symbols can
increase when the other countries make their own recycle symbols in the future.
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.
Since 1948, FURUNO Electric Company has enjoyed an enviable reputation for quality 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.
Thank you for considering and purchasing FURUNO.
Features
The DFF3 network sounder is a dual frequency echo sounder designed for use with the FURUNO
NavNet, NavNet vx2, NavNet 3D and NavNet TZtouch series. The DFF3 feeds data about underwater conditions via a LAN.
• 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/TZtouch display device plus Satellite Compass SC-30.
• Approximate fish length calculation available with conenction of transducer 50/200-1T. (NavNet
3D and TZtouch only.)
• 1/2/3 kW output
Note: The terms “NavNet”, NavNet vx2”, “NavNet 3D” and “NavNet TZtouch” refer to the models
listed below.
NavNet/NavNet vx2NavNet 3DNavNet TZtouch
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)
MFD8/12/BBTZ9, TZ14
v
SYSTEM CONFIGURATION
NavNet 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/NavNet vx2)
HUB-101 (For NavNet 3D/TZtouch)
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—1
Spare PartsSP02-05601001-033-7401 setFuse
Installation MaterialsCP02-08500000-011-9171 set- Power cable (3.5 m)
- LAN cable (5 m)
- 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
Speed/Temperature Sensor
Temperature
Sensor
next page for choices.
MJ-A6SPF0017-050C001-159-705-105 m, for NavNet
MJ-A6SPF0017-100C001-159-706-1010 m, for NavNet
MJ-A6SPF0017-200C001-159-707-1120 m, for NavNet
MJ-A6SPF0017-300C001-159-708-1130 m, for NavNet
MOD-Z072-020+000-167-175-102 m, for HUB-101
MOD-Z072-100+001-167-177-1010 m, for HUB-101
ST-02MSB000-137-986Thru-hull mount, steel hull
ST-02PSB000-137-987Thru-hull mount, plastic hull
T-02MTB000-040-026Transom mount
T-02MSB000-040-040Thru-hull mount
T-03MSB000-040-027Thru-hull mount
—
RectifierPR-62000-013-484100 VAC
000-013-485110 VAC
000-013-486220 VAC
000-013-487230 VAC
1
1. MOUNTING
Transducer, thru-hull pipe and tank com bination s