B&G Network Series User manual

610-HB-0503-05 1
CONTENTS.....................................................................1
GENERAL INTRODUCTION TO B&G NETWORK.........2
INTRODUCTION TO NETWORK QUAD.........................3
EXAMPLE SYSTEMS USING NETWORK QUAD...........4
SELECTING THE DISPLAY MODE................................5
USING THE SPEED KEY................................................6
CALIBRATION AND OPERATING PARAMETERS........7
SETTING THE DISPLAY DAMPING...............................8
SETTING THE SPEED AND LOG UNITS.......................9
SPEED AND LOG CALIBRATION................................10
1 - MANUAL CALIBRATION - CAL................................11
2 - MANUAL CALIBRATION - LOG CAL .......................12
3 - AUTOMATIC CALIBRATION - AUTO CAL...............13
RESETTING THE DEAD RECKONED DISTANCE .......15
USING THE DEPTH KEY..............................................16
THE DEPTH DATUM - CAL...........................................17
SETTING THE DEPTH DATUM ....................................18
SETTING THE DEPTH UNITS ......................................19
DEPTH ALARMS ..........................................................20
SHALLOW ALARM
ENABLING/DISABLING THE SHALLOW ALARM.........21
ADJUSTING THE SHALLOW ALARM VALUE..............21
DEEP ALARM
ENABLING/DISABLING THE DEEP ALARM.................22
ADJUSTING THE DEEP ALARM VALUE......................22
ANCHOR ALARM
USING THE ANCHOR ALARM......................................23
ENABLING/DISABLING THE ANCHOR ALARM ...........24
ADJUSTING THE ANCHOR ALARM SHALLOW LIMIT.25
ADJUSTING THE ANCHOR ALARM DEEP LIMIT.........25
USING THE TIMER/TEMP KEY ....................................26
RESETTING THE TRIP LOG.........................................27
SETTING THE TIMERS AND LAP TIMER.....................28
SETTING THE TEMPERATURE UNITS........................29
CALIBRATING THE TEMPERATURE SENSOR............30
USING THE LIGHTS KEY .............................................31
NETWORK ALARMS.....................................................32
FAULT AND ERROR MESSAGES.................................33
INSTALLATION.............................................................34
SITING THE UNIT..........................................................34
MOUNTING THE UNIT ..................................................34
SPECIFICATION............................................................36
CONTENTS

2
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
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
The Network QUAD unit measures and displays Speed,
Depth, Log, Timer and Sea Temperature information on a
large back-lit Liquid Crystal Display (LCD). The LCD is
divided into three display areas. The top area permanently
shows speed information, the centre area is selectable and
shows Log, timer, sea temperature and depth alarm
information, and the bottom area permanently shows depth
information.
The five keys allow selection of the displayed information
and setting of the units mode, calibration factors and
operating parameters.
It can operate as the main Network QUAD unit either alone
or as part of an Integrated Network Instrument System
taking inputs directly from Speed and Depth Sensors which
plug into the sockets at the rear of the display, or as a
repeater (by selecting repeater mode) of information
received via the two Network cable tails.
The Network QUAD REPEATER (not a Network QUAD in
repeater mode) does not have Speed and Depth Sensor
sockets, so it only receives data via the system network. It
offers identical facilities to a Network QUAD main unit but
can only ever be used as a repeater.
GENERAL INTRODUCTION TO B&G NETWORK INTRODUCTION TO NETWORK QUAD

3
The Network QUAD 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 and Network TACK).
The Network QUAD unit is NOT able to transmit NMEA 0183
(v1.5), however, the Network QUAD REPEATER unit is able
to transmit NMEA data via the system network cables to
other Network units and connect to an NMEA device e.g. a
position fixer, with a special NMEA output cable.
IMPORTANT NOTE
Your Network QUAD unit must be set-up and calibrated
correctly before it is used as part of a navigational system.
INTRODUCTION TO NETWORK QUAD CONT'D NETWORK QUAD DISPLAY UNIT

4
Only one Network QUAD unit should have speed and depth
sensors connected to it and set to transducer mode. Up to
three more Network QUAD (set to repeater mode) or QUAD
REPEATER units can be connected on to the system
network.
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.
If the Network QUAD 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.
EXAMPLES SYSTEMS USING NETWORK QUAD
Repeater Mode Repeater unitRepeater Mode
Main unit QUAD QUAD QUADQUAD
Sensor
Depth Speed
Sensor
SPEED
DEPTH
QUAD WIND QUAD PILOT
Depth
Sensor Speed Sensor

5
The Network QUAD unit has two operating modes. The
correct mode must be selected for your Network system to
operate properly.
tYPEt Transducer mode, the unit uses and displays
speed and depth data from sensors
connected directly into the display unit.
tYPEr Repeater mode, the unit operates as a
repeater using data from the system network.
Press TIMER key
to display stored
log.
Press SETUP key
to display the
current mode.
Press ENTER
key if the mode
needs to be
changed.
Use !or "to
change mode. Press ENTER to
store the new
mode in memory.
Press TIMER to
complete the
change.
SELECTING THE DISPLAY MODE

6
Boat speed information is permanently displayed in the top
area of the LCD.
Press the SPEED key to cycle through the following
options:
SPEED Current boat speed in Knots, can also be
displayed in MPH.
AVERAGE Average boat speed since the last reset of
SPEED the trip log.
MAX Maximum boat speed since the last reset
SPEED of the trip log.
USING THE SPEED KEY

7
When current boat speed is displayed, press the SETUP key
to cycle through the following options:
DAMPING The response time of the display to
changes in boat speed.
SPEED KNOT
The boat speed can be displayed in Knots
or MPH. This setting also changes the log
units to Nautical or Statute Miles.
CAL Manual boat speed and log calibration.
LOG Manual boat speed and log calibration.
CAL
AUTO CAL Automatic boat speed and log
calibration.
dr Reset Dead Reckoned Distance.
When in SETUP mode:
The SPEED key becomes the UP key !
The LOG key becomes the DOWN key "
The LIGHTS key becomes the ENTER key.
The procedures for using the SETUP options are on the
following pages.
CALIBRATION AND OPERATING PARAMETERS

8
Damping allows the response time of the displayed speed
value to be slowed down if it is to jumpy in rough weather, or
to sped it up when the conditions are calm. The damping
works by averaging the values over a set time period; the
longer the time period the smoother the readings, however
the longer it takes to see a change. Similarly the shorter it is
the jumpier the readings, but the faster the response.
The Network QUAD unit has a factory set value of 5, this
can be adjusted in the range 1 to 64, each step is
approximately one second.
Press SPEED
key to display
current boat
speed.
Press SETUP key
once to display
the damping
value.
Press ENTER
key if the value is
to be changed.
Use !or "to
change the value. Press ENTER
key to memorise
the change.
Press SPEED
key to display
current boat
speed.
SETTING THE DISPLAY DAMPING

9
The Network QUAD can be set to display boat speed in
Knots or MPH.
If boat speed is in Knots then log is in Nautical Miles.
If boat speed is in MPH then log is in Statute Miles.
Press SPEED
key to display
current boat
speed.
Press SETUP key
twice. The speed
digits will blank.
Press ENTER
key if the units
are to be
changed.
Use !or "to
change the units. Press ENTER
key to memorise
the change.
Press SPEED
key to display
current boat
speed.
SETTING THE SPEED AND LOG UNITS

10
Before Network QUAD is used for navigation the boat speed
and log have to be calibrated to ensure accuracy for your
installation and the boats hull characteristics.
Three methods are available with the Network QUAD unit,
two manual adjustments and one automatic:
MANUAL CALIBRATION
1. CAL The displayed boat speed value is corrected
manually to read a known measured speed.
2. LOG The units calibration figure (Hz/Knot) is
CAL manually adjusted to correct log and speed
inaccuracy.
AUTOMATIC CALIBRATION
3. AUTO CAL The unit automatically calibrates and
corrects the boat speed and log.
Use the one of the methods overleaf to calibrate your
instrument. It is recommended that AUTO CAL is used as
this method will ensure the most accurate calibration of your
Network QUAD unit.
SPEED AND LOG CALIBRATION

11
This procedure requires a reference boat speed with which to
compare the Network QUAD units displayed boat speed. For
example, another boat with an accurate
calibrated log, or if the top speed of the boat is known this
value can be entered during a sea trial to correct the
displayed value.
NOTE: The accuracy of this method is dependant upon the
accuracy of the reference boat speed.
The example below shows a displayed boat speed of 5.2
knots, the boat speed is known to be 6.0 knots. The
displayed value is adjusted to read 6.0 knots.
IMPORTANT NOTE: This method of calibration must not be
carried out at boat speeds of LESS THAN 3 KNOTS as
inaccurate values can be entered into the units memory. If
the speed and log are not functioning correctly then enter a
calibration value of 5.3 to 6.2 and then re-enter the correct
calibration value as described below.
Press SPEED
key to display
current boat
speed.
Press SETUP key
three times to
display CAL.
Press ENTER
key to adjust the
displayed value.
Use !or "to
change the value. Press ENTER to
store the new
value in memory.
Press SPEED
key to complete
the change.
METHOD 1. - MANUAL CALIBRATION - CAL

12
If the log or boat speed is in error by a known percentage
then this method allows the calibration figure or LOG CAL to
be adjusted by that amount. The calibration figure is
measured in Hertz per knot (Hz/kt), the factory set value is
6.25.
NOTE: The accuracy of this method is dependant upon the
accuracy of the calculated percentage error.
Using the factory set LOG CAL of 6.25 Hz/kt:
If the display is under reading by 10% subtract 0.62,
If the display is over reading by 10% add 0.62.
Press SPEED
key to display
current boat
speed.
Press SETUP key
four times to
display LOG
CAL.
Press ENTER
key to adjust the
displayed value.
Use !or "to
change the value. Press ENTER to
store the new
value in memory.
Press SPEED
key to complete
change.
METHOD 2. - MANUAL CALIBRATION - LOG CAL

13
This procedure will automatically and accurately calibrate
the boat speed and log and is the recommended method for
most boats.
NOTE: AUTO CAL can be aborted any time by pressing the
SETUP key, then the SPEED key.
•Select two markers that are easily identifiable on the
ground and on a chart, choose a place where the current
is at a minimum. Measure and record the distance
between the markers on the chart.
•It is recommended that three runs are carried out, this
accounts for tidal efforts, and improves accuracy.
However a time should selected when the current is at a
minimum, ie slack water between tides.
IMPORTANT NOTE: The total distance accumulated over
the three runs must exceed 0.16 Nautical Miles or 100
metres per run. If this is not achieved the AUTO CAL will fail
and the procedure will have to be repeated.
•Press the SPEED key to select current boat speed.
•Press the SETUP key five times to display AUTO CAL.
•Press the ENTER key when in line with marker A, to start
run 1. The display will flash AUTO CAL 1. Press ENTER
key again when in line with marker B, to freeze run 1. The
display will flash, showing the distance so far for one run.
•Turn the boat around for run 2 in the opposite direction
over the same measured distance. Press the ENTER key
when in line with marker B, to start run 2. The display will
flash AUTO CAL 2. Press ENTER key again when in line
with marker A, to freeze run 2. The display will flash the
accumulated distance so far for two runs.
•Turn the boat around for run 3 (final run) in the opposite
direction over the same measured distance. Press the
ENTER key when in line with marker A, to start run 3.
The display will flash AUTO CAL 3. Press ENTER key
again when in line with marker B, to freeze run 3. The
display will flash the accumulated distance for three runs.
•Multiply the recorded distance from the chart by the
number of runs completed. This is the true distance
travelled.
•Adjust the flashing display with the !or "keys until it is
the same as the true distance.
•Press the ENTER key to complete the calibration. The
display will zero, and the calibration is memorised.
METHOD 3. - AUTOMATIC CALIBRATION - AUTO CAL

14
AUTOMATIC CALIBRATION PROCEDURE
Distance measured
on a chart
StopStart Run 3Run 3
StopStart Run 1Run 1
Stop Start
Run 2Run 2
ABORTING AUTO CAL

15
This facility allows the Dead Reckoned (DR) distance log to
be reset. The Network QUAD unit cannot display the DR
information, however Network SPEED and Network DATA
both display it.
Press SPEED key to
display the current boat
speed.
Press SETUP key 6 times
to display dr. The display
will flash.
Press ENTER key, there
will be no change on the
QUAD unit LCD but the dr
log has been reset.
The dr log will be reset to
zero when displayed on
SPEED or DATA units.
RESETTING THE DEAD RECKONED DISTANCE

16
The current water depth is permanently displayed in the
bottom LCD area in metres, feet or fathoms. The unit is
factory set to metres. The depth displayed is from the depth
datum, see DEPTH DATUM. Press the DEPTH key to cycle
through the following options:
CAL The Depth Datum can be adjusted so the
displayed water depth is from the water-
line, the depth sensor (transducer) or the
keel or outdrive depth. The unit is factory
set to display water depth from the
transducer.
SHALLOW When enabled it will sound if the water
ALARM depth is less than the alarm value.
DEEP When enabled it will sound if the water
ALARM depth is more than the alarm value.
PALARM When enabled it will sound if the water
depth is outside two alarm limits.
The Network QUAD 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")
USING THE DEPTH KEY

17
The depth datum CAL is an offset calibration value used 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 QUAD unit has factory set CAL of zero, i.e.
the depth is displayed from the transducer. The CAL value
is displayed in the same units as the depth.
THE DEPTH DATUM - CAL

18
CAL zero, depth from transducer.
CAL positive, depth from waterline.
CAL negative, depth from keel.
NOTE: If the CAL LOCK is set then the CAL value cannot be
changed. Consult your B&G dealer for advise.
Press DEPTH key
to display depth
datum CAL.
Press SETUP key
to display current
datum value. The
display will flash.
Press ENTER to
adjust the datum
value. The value
will flash.
Use !or "to
adjust the value. Press ENTER to
memorise the new
value.
Press DEPTH to
display the depth
datum.
SETTING THE DEPTH DATUM

19
The Network QUAD unit can be set to display depth in
Metres, Feet or Fathoms. The selected units are used for
displayed depth information on all Network instruments on
the entire Network system.
Press DEPTH
key to display the
current depth.
Press SETUP key
twice. The depth
display will go
blank.
Press ENTER
key if the units
are to be
changed.
Use !or "to
change the units. Press ENTER
key to memorise
the change.
Press DEPTH to
display current
depth.
SETTING THE DEPTH UNITS

20
The display will show OFF if the alarm is disabled or the
alarm value when enabled. The value will be displayed in
metres, feet or fathoms depending on the selected depth
units.
When the alarm condition is met the unit will sound its'
internal alarm buzzer and flash DEPTH METRES. Silence
the alarm by pressing any key. The alarm information is
broadcast to all other Network units via the system network
cables, these will also sound their alarms and flash their
displays, except Network WIND and Network TACK which
do not have alarms. See NETWORK ALARMS at the end of
this manual.
Shallow alarm.
Factory set to 1.0m, (3.2ft, 0.5 fathoms).
Adjustable range 0 - 180m, 0 - 590ft, 0 - 98.4 fa.
Deep alarm.
Factory set to 10.0m, (32.8ft, 5.4 fathoms).
Adjustable range 0 - 180m, 0 - 590 ft, 0 - 98.4 fa.
Anchor alarm
Factory set Shallow 0.5m Deep 1.0m,
(1.6/3.2ft, 0.2/.5 fathoms).
Adjustable range 0 - 180m, 0 - 590 ft, 0 - 98.4 fa.
DEPTH ALARMS