SPEED 3100 log Installation and Operation Manual
NAVMAN
11
8 SPEED 3100 hardware
8-1 What comes with your SPEED 3100
The SPEED 3100 comes in several configurations.
Standalone configuration
SPEED 3100 unit with protective cover.
Warranty card.
Mounting template.
This Installation and Operation manual.
In addition, the standalone configuration usually
requires a speed/temperature transducer (see
section 8-3).
Kit configuration
The SPEED 3100 is available in several kit
configurations with different grades of through hull
transducer, with:
The parts for the standalone configuration,
listed above.
Through hull speed/temperature transducer
Transducer Installation manual.
8-2 Other parts required
One or more 3100 series instruments will be
connected to the boat 12 V power supply via:
An accessory switch to turn the instruments on
and off.
A fuse: Use a 1 A fuse for between one and five
instruments.
Optional external beepers or lights can be fitted. The
SPEED 3100 output is switched to ground, 30 V DC
and 250 mA maximum. If the beepers and lights
require more than 250 mA, fit a relay.
For systems of several instruments, wiring and
connectors are required (see section 7 or the NavBus
Installation and Operation manual).
8-3 Transducers
The SPEED 3100 is usually used with a through hull
speed/temperature transducer. However, the unit can
take readings from another instrument, in which case
it may not need a transducer (see section 7).
A through hull transducer generally gives the best
performance and is the best choice for displacement
hulls. It is mounted in a hole drilled through the bottom
of the boat.
A plastic through hull transducer is suitable for
GRP or metal hulls. Plastic through hull
transducers are not suitable for solid wood
hulls. (Use NAVMAN’s bronze transducers).
A bronze transducer is suitable for wood or
fibreglass hulls. Never install a bronze
transducer in a metal hull, because it will
cause electrolytic corrosion.
A range of NAVMAN through hull transducers are
available, for more information, refer to the
Transducer Installation manual or consult your
NAVMAN dealer.
8-4 Accessories
These accessories are available from your NAVMAN dealer.
NavBus junction box
(See section 7-1)
Through hull speed
transducer skin fitting
4 m (13 ft) speed
transducer extension
cable
Through hull speed
paddlewheel
