B&G Network Depth User Manual

CONTENTS

GENERAL INTRODUCTION TO B&G NETWORK 2
INTRODUCTION TO NETWORK DEPTH 3
EXAMPLE SYSTEMS USING NETWORK DEPTH 4
SELECTING THE DISPLAY MODE 5

USING THE DEPTH KEY 6

SETTING THE DEPTH UNITS 7
THE DEPTH DATUM - D CAL 8
SETTING THE DEPTH DATUM 9

USING THE SIGNAL KEY 10

USING THE ALARM KEY 11

DEPTH ALARMS 11
ENABLING/DISABLING THE SHALLOW ALARM 12
ADJUSTING THE SHALLOW ALARM VALUE 12
ENABLING/DISABLING THE DEEP ALARM 13
ADJUSTING THE DEEP ALARM VALUE 13
THE ANCHOR ALARM 14
ENABLING/DISABLING THE ANCHOR ALARM 15
ADJUSTING THE ANCHOR ALARM LOW LIMIT 16
ADJUSTING THE ANCHOR ALARM HI LIMIT 16

USING THE LIGHTS KEY 17

SETTING THE DISPLAY LANGUAGE 18

NETWORK ALARMS 19

FAULT AND ERROR MESSAGES 20

INSTALLATION 21

SITING THE UNIT 21
MOUNTING THE UNIT 21

SPECIFICATION 23

CONDITIONS OF WARRANTY

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1

GENERAL INTRODUCTION TO B&G NETWORK

The B&G Network range of instruments are 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

Network SPEED
Network DEPTH
Network QUAD
Network WIND
Network TACK
Network DATA

NAVIGATIONAL AIDS

Network NAV
Network GPS
Network LORAN
LCD CHART

AUTOPILOTS

Network PILOT

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INTRODUCTION TO NETWORK DEPTH NETWORK DEPTH DISPLAY UNIT

The Network DEPTH unit measures and displays Depth
information on a large Liquid Crystal Display (LCD). The
five keys allow selection of the displayed information and
setting of the units mode, calibration factors and alarms.

It can operate as the main Network DEPTH unit either
alone or as part of an Integrated Network Instrument
System taking inputs directly from a Depth Sensor that
plugs directly into the rear of the display. It will also
operate as a repeater of depth information received via
the two Network cable tails.

The Network Depth unit has three adjustable alarms:

1. Shallow water alarm

2. Deep water alarm

3. Anchor alarm

An internal alarm buzzer will sound when an alarm
condition is met and the display will flash. The alarm is
broadcast to all other Network Instruments in an
integrated system, they will also sound their alarms and
flash their displays (except Network WIND). The Network
DEPTH unit will also indicated Network PILOT alarms and
fault conditions.

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EXAMPLE SYSTEMS USING NETWORK DEPTH

Only one Network DEPTH unit should have a depth
sensor connected to it and set to transducer mode. Up to
three more Network DEPTH units can be connected on to
the system network, these must be set to repeater mode.
See SELECTING THE DISPLAY MODE.

When in repeater mode, if the data is not
being received from the system network, the
display will show OFF when a key is
pressed.

rEP Repeater mode, the unit operates as a depth
repeater using data from the system network.

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4

SELECTING THE DISPLAY MODE

The Network DEPTH unit has two operating modes. The
correct mode must be selected for your network system
to operate properly.

trA

data from a depth sensor connected directly into the
display unit.

rEP

repeater using data from the system network.

Transducer mode, the unit uses and displays depth

Repeater mode, the unit operates as a depth

Press

SIGNAL

key.

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Press

SETUP

key
to display the
current mode.

Press

ENTER

if the mode needs
to be changed.

key

Use S or T to
change mode.

Press

ENTER

memorise the
new mode.

to

Press

SIGNAL

key to complete
the change.

5

USING THE DEPTH KEY

Press the DEPTH key to cycle through the following options:

•

DEPTH M

The current water depth in metres M, can
also be displayed in feet FT or fathoms FA. The unit is
factory set to metres. The depth displayed is from the
depth datum, see below.

•

D CAL M

The Depth Datum can be adjusted so the
displayed water depth is from the water- line, the depth
sensor (transducer) or the keel/outdrive depth. The
unit is factory set to display water depth from the
transducer.

The Network DEPTH unit can measure and display water
depth in the following ranges:

•

0.7 to 180 metres

•

2'4" to 590'

•

0.37 to 98.4 fathoms

•

Accuracy ± 2% or ± 0.2m (± 8")

If the Network DEPTH unit losses valid depth data, due
either the actual depth being outside the working range,
or to extreme turbulence in the water the LCD will show 3
"floating" bars. This shows that the unit is attempting to
calculate the depth and is still functioning.

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SETTING THE DEPTH UNITS

The Network DEPTH unit can be set to display depth in
Metres M, Feet FT or Fathoms FA. The selected units are
used for displayed depth information on all Network
instruments on the entire network system.

Press
to display the
current depth.

DEPTH

key

Press
key. The depth
display will go
blank.

SETUP

Press
if the units are to
be changed.

ENTER

key

Use S or T to
change the units.

Press
to memorise the
change.

ENTER

key

Press
display current
depth.

DEPTH

to

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7

THE DEPTH DATUM - D CAL

The depth datum
to determine the displayed information reference point. It is
added to the actual measured water depth to display the
depth from the waterline, the depth sensor (transducer) or
the keel/outdrive depth.

The Network DEPTH unit has factory set
i.e. the depth is displayed from the transducer. The
value is displayed in the same units as the depth.

D CAL

is an offset calibration value used

D CAL

of zero,

D CAL

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8

SETTING THE DEPTH DATUM

D CAL
D CAL
D CAL

NOTE:

be changed.

zero, depth from transducer
positive, depth from waterline
negative, depth from keel

If the CAL LOCK is set then the D CAL value cannot

CAL TRA.

CAL W/L.

CAL KEEL.

Press

DEPTH

key
to display depth
datum

D CAL M

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Press

SETUP

key

to display current

.

datum value.

Press

ENTER

adjust the datum
value.

to

Use S or T to
adjust the value.

Press

ENTER

to
memorise the new
value.

Press

DEPTH

to
display the depth
datum.

9

USING THE SIGNAL KEY

Press the
this is an indication of the return echo strength. A is excellent,

is poor.

F

The sea bed can have an effect on the quality of the return
echo strength, i.e. very good echoes are returned from rock,
shale and sand, however poor echoes are returned from mud.
Therefore the merit letter could be A or B for rocks but C or D
for mud.

SIGNAL

key to display a letter of merit from A to F,

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10

USING THE ALARM KEY

Press the
options:

SHA A M

Shallow Alarm, when enabled it will sound if

DEP A M

Deep Alarm, when enabled it will sound if

ANC A M

Anchor Alarm, when enabled it will sound if

ALARM

the water depth is less than the alarm value.

the water depth is more than the alarm
value.

the water depth is outside two alarm limits.

key to cycle through the following

DEPTH ALARMS

The display will show

if the alarm is disabled or the

OFF

alarm value when enabled. The value will be displayed in
metres M, feet FT or fathoms FA depending on the
selected depth units.

When the alarm condition is met the unit will sound its
internal alarm buzzer and flash

DEPTH M

. Silence the

alarm by pressing any key.

Shallow Alarm

Factory set to 1.0m, (3.2ft, 0.5 fathoms).
Range 0 - 180m, 0 - 590ft, 0 - 98.4 fathoms.

Deep Alarm

Factory set to 10.0m, (32.8ft, 5.4 fathoms).
Range 0 - 180m, 0 - 590 ft,
0 - 98.4 fathoms.

Anchor Alarm

Factory set

LOW

0.5m HI 1.0m,
(1.6/3.2ft, 0.2/.5 fathoms).
Range 0 -180m, 0 - 590 ft,
0 - 98.4 fathoms.

6

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11

ENABLING/DISABLING THE SHALLOW ALARM

Press

ALARM

key
to display shallow
alarm

SHA A M.

Press

SETUP

key,
the alarm state will
be displayed.

Press

ENTER

the display will
flash.

ADJUSTING THE SHALLOW ALARM VALUE

key,

Use S or T to
enable/disable the
alarm.

Press

ENTER

memorise the
change.

to

Press

ALARM

key, the value is
displayed.

Press

ALARM

key
to display shallow
alarm

SHA A M

.

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Press

SETUP

key
twice, the value is
displayed.

Press

ENTER

the display will
flash.

key,

Use S or T to
adjust the value.

Press

ENTER

key
to memorise the
new value.

Press

ALARM

key, the alarm is
displayed.

12

ENABLING/DISABLING THE DEEP ALARM

Press

ALARM

to display deep
alarm

DEP A M.

key

Press

SETUP

key,
the alarm state will
be displayed.

Press

ENTER

the display will
flash.

ADJUSTING THE DEEP ALARM VALUE

key,

Use S or T to
enable/disable the
alarm.

Press

ENTER

memorise the
change.

to

Press

ALAR

M

key, the value is
displayed.

Press

ALARM

key
to display shallow
alarm

DEP A M

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Press

SETUP

key
twice, the value is
displayed.

Press

ENTER

the display will
flash.

key,

Use S or T to
adjust the value.

Press

ENTER

key
to memorise the
new value.

Press

ALARM

key, the alarm is
displayed.

13

USING THE ANCHOR ALARM

The Anchor Alarm uses two adjustable alarm limits. The
alarm will sound if the water is deeper or shallower, by the
amount set, than the original depth when the alarm was
enabled. This allows you to adjust your anchor chain
according to the rise and fall of the tides. The Network
DEPTH unit has a factory set low limit of 0.5m and a high
limit of 1.0m.

In the following example the original water depth was 3m
when the alarm was enabled. Using the factory set values,
the water depth could increase to 4m (3m + 1m) and
decrease to 2.5m (3m - 0.5m) before the alarm would
sound.

The anchor alarm depth limits are shown alternatively when
they are enabled and displayed using the

ALARM

key.

3.0m depth

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ANCH HI limit

1.0m

0.5m

ANCH LOW limit

ANCH HI Alarm

at 4.0m

ANCH LOW Alarm

at 2.5m

14

ENABLING/DISABLING THE ANCHOR ALARM

Press
key to display
anchor alarm

ANC A M

ALARM

Press
key, the alarm
state will be
displayed.

SETUP

Press
key, the display
will flash.

ENTER

Use S or T to
enable/disable the
alarm.

Press
memorise the
change.

ENTER

to

Press
key, to display the
anchor alarm.

ALARM

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ADJUSTING THE ANCHOR ALARM LOW LIMIT

Press
to display anchor
alarm

ALARM

ANC A M.

key

Press
twice to display

ANCH LOW

value.

SETUP

key

Press
the display will
flash.

ENTER

ADJUSTING THE ANCHOR ALARM HI LIMIT

key,

Use S or T to
adjust the
displayed value.

Press
memorise the new
value.

ENTER

to

Press
to display the
anchor alarm.

ALARM

key

Press
to display anchor
alarm

ALARM

ANC A M.

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key

Press
3 times to display

ANCH HI

SETUP

key

value.

Press
the display will
flash.

ENTER

key,

Use S or T to
adjust the
displayed value.

Press
to memorise the
new value.

ENTER

key

Press
to display the
anchor alarm.

ALARM

key

16

USING THE LIGHTS KEY

The Network DEPTH Display unit has 3 levels of
illumination and off, controlled by the

LIGHTS

changes the illumination level of the key legends.

The

LIGHTS

key is always illuminated so even in complete

darkness the key can be located.

key. It also

•

LIGHTS 0

•

LIGHTS 3

•

LIGHTS 2

•

LIGHTS 1

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OFF
High
Medium

Low

17

SETTING THE DISPLAY LANGUAGE

The Network DEPTH unit can show LCD text in English or
French. To change the display language procede as follows.

Press

SIGNAL

key.

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Press

SETUP

key twice to
display the
language

Press

ENTER

key if the
language needs
to be changed.

Use S or T to
change the
language.

setting.

Press

ENTER

to memorise the
new setting.

Press

SIGNAL

key to complete
the change.
The LCD now
shows French
text.

18

NETWORK ALARMS

y

The Network DEPTH unit has an internal buzzer that
willsound when an alarm condition is met on a Network
unitthat has alarm functions ie. Network DEPTH and
NetworkQUAD for depth alarms and Network PILOT for
WatchAlarm and Off Course alarms. The unit will also
displaywhich alarm is activated.

To silence the internal alarm and return the display to
normal operation press any of the five keys.

DEPTH ALARM DISPLAY

Depth alarms can be set for the following:

•

Shallow water

NETWORK PILOT ALARM DISPLAYS

The Watch Alarm is a count-down timer with is activated at
the end of the preset count-down period. The displa
alternates between the messages below.

The Off Course alarm is activated when the boat deviates
off course by a preset amount. The display alternates
between the messages below:

•

Deep water

•

Anchor Watch

Check your Network DEPTH or QUAD unit to see which
alarm is activated.

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19

w

y

r

FAULT AND ERROR MESSAGES

NETWORK PILOT FAULT DISPLAY

If Network PILOT should have a fault the autopilot computer
unit will send a message to all other Network Display Units.
The Network DEPTH unit will alternately display the follow
message, the actual fault will have to read from the Network
PILOT Display unit.

UNIT INTERNAL ERRORS

In the unlikely event that your Network DEPTH unit should
develop an internal error, the unit will sound it's alarm
continuously and the display will show an error number.

Press any of the keys to reset the error condition and
silence this alarm. In some cases the fault can be cleared
by switching off the instruments at the supply, waiting a fe
moments and then switching on again. If either of these
methods do not clear the fault the error number should be
recorded. Switch off the supply and disconnect the fault
unit. Return it with the error number to your dealer fo
servicing.

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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 DATA

110.0mm

110.0mm

25.0mm 65.0mm

Mounting Bracket Rubber Gasket

82.0mm

Fit the gasket

around the bracket

Locking stud fixings

Network connector Network and Power connector

Gasket

70.0mm hole

Display

Sun cover

82.0mm

610-HB-0501-04

Bulkhead

Gasket

Mounting Bracket

Self-tapping screws

22

SPECIFICATION

PHYSICAL PARAMETERS

Construction
Window
Display

Large Digits: 28.6mm 1.12"
Small Digits: 11.5mm 0.45"

Dimensions

Requires 65mm 2.6" depth behind
bulkhead for display barrel

Weight:

ENVIRONMENTAL

Operating Temp

@ 93%RH

Storage Temp

@ 95%RH

Humidity
Sealing

bulkhead cockpit mounting. Vented
barrel to prevent condensation.

Acrylic

Back-lit Liquid Crystal Display:

0,3 Kg 0.66lbs

Fully sealed front, suitable for

High impact ABS plastic

: 110 x 110 x 25.4mm 4 x 4 x 1"

-10 à+55°C, +14 to +1310F

-25 à+70°C, -25 to +700C

Up to 95%RH

ELECTRICAL

Power Supply
Operating Current
Protection

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

Internal audible alarm. Control output for external alarm unit.

NMEA OUTPUT SENTENCES

There is no NMEA output from the Network DEPTH unit.

12V DC nominal (10 to 16V)

40mA typical, 100mA illuminated

Connect via external fuse or circuit

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