B&G Network Wind User Manual

CONTENTS

CONTENTS 1

GENERAL INTRODUCTION TO B&G NETWORK 2

INTRODUCTION TO NETWORK WIND 3

EXAMPLE SYSTEMS USING NETWORK WIND 4

SELECTING THE DISPLAY MODE 5

THE ANALOGUE DIAL AND POINTER 6

USING THE APP. KEY 6

USING THE TRUE KEY 7

USING THE VOLTS KEY 7

USING THE SETUP KEY 8

INSTALLATION 14

SITING THE UNIT 14

MOUNTING THE UNIT 14

SPECIFICATION 16

ABBREVIATIONS AND DEFINITIONS 17

THE WIND TRIANGLE 17

CONDITIONS OF WARRANTY

SETTING THE DIGITAL DISPLAY DAMPING 9

SETTING THE ANALOGUE DISPLAY DAMPING 10

WIND SENSOR ALIGNMENT 11

ADJUSTING THE WIND SENSOR OFFSET 12

USING THE LIGHTS KEY 13

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GENERAL INTRODUCTION TO B&G NETWORK

The B&G Network range of instruments is designed to be
used as individual units or connected together to form an
integrated navigational system. A single network cable is
used to carry data and power between units. The latest
technology and screened cables throughout the Network
System ensure the ultimate protection from interference
between units and other systems. All Network instruments
can be linked to Network PILOT, Network CHART, Network
GPS or Network LORAN receivers or via NMEA 0183 (v1.5)
to other navigational equipment.

INSTRUMENTS NAVIGATIONAL AIDS

Network SPEED Network GPS
Network DEPTH Network LORAN
Network QUAD Network NAV
Network WIND Network CHART
Network TACK
Network DATA

AUTOPILOTS COMMUNICATIONS

Network PILOT Network VHF

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INTRODUCTION TO NETWORK WIND NETWORK WIND DISPLAY UNIT

The Network WIND unit measures and displays wind
information on an analogue 360

0

Apparent Wind Angle meter
and a back-lit Liquid Crystal Display (LCD). The five keys
allow selection of the information displayed on the LCD and
setting of the units mode, Wind Sensor offset calibration and
display damping.
It can operate as the main Network WIND unit either alone or
as part of an Intregrated Network Instrument System taking
inputs directly from a Wind Sensor which plugs into the socket
at the rear of the display, or as a repeater of wind information
received via the two Network cable tails. For true wind
functions Network WIND must be connected to a system that
contains a Network SPEED or Network QUAD unit as boat
speed is required.
The unit is able to transmit NMEA 0183 v1.5 data via the
network cables to other Network units and connect to an
NMEA device e.g. a position fixer, with a special NMEA output
cable.
The unit has no internal alarm or alarm functions.

IMPORTANT NOTE
Your Network WIND unit must be setup and calibrated
correctly before it is used as part of a navigational system.

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EXAMPLES SYSTEMS USING NETWORK WIND

Only one Network WIND unit should have a wind sensor
connected to it and set to transducer mode. Up to three more
Network WIND units can be connected on to the system
network, these must be set to repeater mode.
See SELECTING THE DISPLAY MODE. For True wind
functions the Network WIND must be part of a system
containing Network SPEED or Network QUAD.

Network SPEED, Network DEPTH, Network WIND and
Network TACK (magnified wind angle).

Depth

Wind Sensor

QUAD WIND

Master Unit

Speed

WIND

Repeater

QUAD WIND TACK

WIND

Repeater

The Network units can be connected together in any order as
data is shared via the system network cable link.

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SELECTING THE DISPLAY MODE

The Network WIND unit has three operating modes.
The correct mode must be selected for your Network

system to operate correctly.
tu Unit mode, the unit uses and displays wind data from a
wind sensor connected directly into the display unit. Your unit
is supplied in this mode.
tr Repeater mode, the unit operates as a wind repeater

using data from the system network.
td Demo mode, the unit runs an internal demonstration

program.

Press SETUP key 4 times
to display current mode.

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Press ENTER key if the
mode needs to be

Use ¿ or À key to

change the mode.
changed. The display
flashes.

5

Press ENTER key to
memorise the new mode. After
30 secs the display will revert
to previously selected display.

THE ANALOGUE DIAL AND POINTER

The analogue pointer always indicates Apparent Wind Angle
on the 360

0

dial. Each division marker is at 300 intervals. The
LCD is offset to the left so when running with the wind astern
the wind angle can still be read clearly.

USING THE APP. KEY

Press the APP. key to display Apparent Wind Speed on the
LCD. The LCD APP legend will be displayed.

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USING THE TRUE KEY USING THE VOLTS KEY

Press the TRUE key to display True Wind Speed on the LCD.
The LCD TRUE legend will be displayed.
If boat speed data is not available the LCD digits will be blank
and the TRUE legend will be displayed.

Press the VOLTS key to display Battery Volts on the LCD.
The LCD V legend will be displayed.

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USING THE SETUP KEY

Press the SETUP key to cycle through the following options
on the LCD.

dS Damping Speed, this is the response time of the LCD
wind speed display.

dA Damping Analogue, this is the response time of the
analogue pointer.

OF Offset, this is the offset calibration value to correct
for Wind Sensor misalignment.

tu Display mode, this is the operating mode of the Network
WIND unit.

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LCD WIND SPEED DAMPING

The wind speed damping allows the response time of the
LCD wind speed display to be slowed down if the values are
to jumpy in gusty conditions. The damping works by
averaging the wind speed over a set time period, the longer
the time period the smoother the displayed values, however
the longer it takes to see any change.

Network WIND allows selection of four damping values, d1,

d2, d4, d8, each is the approximate time in seconds. The unit
is supplied with a factory set value of d4.

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Press SETUP key
once to display dS,
damping Speed.

Press ENTER key to
display current
damping speed. The
display flashes.

Use ¿ or À key to
cycle through the
damping values.

Press ENTER key to
memorise the new value.
After 30 secs the display
will revert to previously
selected display.

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ANALOGUE POINTER DAMPING

The analogue pointer damping allows the response time of
the analogue display to be slowed down if the values are to
jumpy in gusty conditions. The damping works by averaging
the wind angle over a set time period, the longer the time
period the smoother the displayed values, however the longer
it takes to see any change.
Network WIND allows selection of four damping values, d1,
d2, d4, d8, each is the approximate time in seconds. The unit
is supplied with a factory set value of d1.

Press SETUP key
twice to display dA,
damping Analogue.

Press ENTER key to
display current
damping speed. The
display flashes.

Use ¿ or À key to
cycle through the
damping values.

Press ENTER key to
memorise the new value.
After 30 secs the display will
revert to previously selected
display.

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WIND SENSOR MISALIGNMENT CORRECTION

For accurate wind angle readings the wind sensor should be
pointing forward and aligned with the centreline of the boat.
However, this is not always possible, so Network WIND
allows a wind sensor offset value to be entered to
compensate for the misalignment electronically.
Firstly the amount of misalignment must be found. The
following procedure will enable you, during the course of a
sea trial, to establish the value.

1 Sail close-hauled on a Port Tack, note the set of all the
sails.

When the conditions are steady, note the apparent wind angle
(AWA) on the analogue display, e.g. Port 35

0

.

NOTE: If you have Network TACK or Network DATA the
AWA can also be read from these.

2 Turn the boat until close-hauled on a Starboard Tack,
make sure the sails are set as for the Port Tack.

When the conditions are steady, note the AWA on this tack,
e.g. 25

0

.

3 Determine the direction of the misalignment and wind
sensor offset value by subtracting the Starboard value from
the Port value, then dividing by two. e.g. Port 35 - Starboard

25 = 10 ÷ 2 = 5.

If the value is positive the misalignment is to Port, if the
value is negative it is to Starboard.

4 Enter the wind sensor offset value into the Network
WIND unit's memory by following the procedure below.

5 The alignment procedure should be repeated until the
displayed AWA is equal on both tacks.

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ADJUSTING THE WIND SENSOR OFFSET

If the value calculated is positive, the wind sensor is
misaligned to Port. To correct this the analogue pointer must
be offset clockwise (towards starboard) by the value
calculated. Use the ¿ key (up) to change the value displayed
on the LCD.
If the value is negative, the wind sensor is misaligned to
Starboard. To correct this the analogue pointer must be offset
anti-clockwise (to port) by the value calculated. Use the À key
(down) to change the value displayed on the LCD.

Press SETUP key 3
times to display OF,
OFfset value.

Press ENTER key to
display current value.
The display flashes.
Factory set to zero.

Use ¿ or À key to
adjust the value.

¿ = clockwise
À = anti-clockwise.

Press ENTER key to
memorise the new
value. After 30 secs
the display will revert to
previously selected
display.

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USING THE LIGHTS KEY

The Network WIND Display unit has 3 levels of illumination
and off, controlled by the LIGHTS key. The level selected is
for the whole Network system.

• L0 OFF

• L3 High

• L2 Medium

• L1 Low

The LIGHTS key also changes the illumination level of the
key legends, it always remains illuminated so even in
complete darkness the key can be located.

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INSTALLATION

The display heads are supplied with a clip-in mounting
bracket which allows for easy installation, access from behind
is not necessary to secure the unit in place. However to
prevent theft and permanently fix the unit in position, locking
studs and thumb nuts are supplied.

SITING THE UNIT

All Network Instruments are designed for mounting on or
below deck. A mounting position should be selected where
they are:

• Easy to read by the helmsman

• On a smooth and flat surface

• At least 100mm (4") from a compass

• Accessible from behind for fitting locking studs if

required.

MOUNTING THE UNIT

Use the cutting template supplied to mark the centres of the
holes for the self-tapping screw, the fixing stud holes and the
mounting bracket.

• The template allows 4mm (5/32") between adjacent units
for the suncover, increase this distance if required to
maximum of 60mm (2 3/8") between units or 180mm
(3 1/8") between centres. For greater distances between
units extension cables are available.

• Use a 70mm (2 3/4") diameter hole-cutter for the
mounting bracket hole.

• Use a 2.9mm for the self-tapping screw holes.

• Use a 5mm (3/32") drill for the locking stud holes.

• Secure the mounting bracket to the bulkhead with the

self-tapping screws supplied

• Fit the rubber sealing gasket around the mounting
bracket.

• Screw the locking studs into the back of the display head
(if required).

• Carefully pass the cable tails through the mounting
bracket hole, connect the cables to the main units.

• Clip the display head into the mounting bracket.

• Secure the instrument with the thumb nuts supplied.

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INSTALLATION

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SPECIFICATION

PHYSICAL PARAMETERS

Construction High impact ABS plastic
Window Acrylic
Display Analogue dial and pointer

Back-lit Liquid Crystal Display:
Digits: 12mm 0.47"
Dimensions 110 x 110 x 25.4mm 4 x 4 x 1"
Requires 65mm 2.6" depth behind
bulkhead for display barrel.

Weight 0.3 kg 0.66lbs

ENVIRONMENTAL

0

Operating Temp -10 to +55
+14 to +131
Storage Temp -25 to +70

-13 to +158

C @ 93%RH

0

F @ 93%RH

0

C @ 95%RH

0

F @ 93%RH

Humidity Up to 95%RH

Sealing Fully sealed front, suitable for bulkhead cockpit

mounting. Vented barrel to prevent condensation.

ELECTRICAL

Power Supply 12V DC nominal (10 to 16V)
Operating Current 40mA typical, 100mA illuminated
Protection Connect via external 5A fuse or circuit

breaker.

CABLES AND CONNECTIONS

Connection to adjacent units is via cable tails fitted with either
a plug or a socket. Extension cables are available from your
dealer. The cable tails carry power and NMEA data between
units.

ALARM

There is no internal audible alarm

NMEA OUTPUT SENTENCES

$IIHDM Heading
$IIVHW Speed and Heading
$IIDBT Depth
$IIVWR Apparent wind angle and speed
$IIMTW Sea temperature

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ABBREVIATIONS AND DEFINITIONS

AWA Apparent Wind Angle - The angle between the

boat's bow and the wind blowing across the
deck (at mast height).

AWS Apparent Wind Speed - The wind speed across
the deck (at mast height).

TWA True Wind Angle - The wind angle between the
boat's heading and the true wind (at mast
height). This is calculated from AWA, AWS and
boat speed. This is the wind relative to the
water, not the land.

TWS True Wind Speed - The wind speed over the water,

independent of the boat's motion through it. Calculated
from AWA, AWS and boat speed.

VMG Velocity Made Good - A measure of
performance upwind or downwind calculated
from TWA and boat speed.

THE WIND TRIANGLE

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