Cetrek C-net 2000 MULTI User manual

C-net 2000 MULTI
Users Guide
Issue 08 (V2 series software)

3
Welcome...
All of us at Cetrek would like to welcome you to the
reliable world of Cetrek Autopilot and Control Systems.
Thank you for buying this C-net 2000 MULTI. It is designed
to let you select the information that you want, presented
in the manner most suited to you.
Document
Reference:
806500
Issue 08
Sept 1999

C-net 2000 MULTI
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EMC Directive 89/336/EEC
This product has been designed to be compliant with the
above Directive.
Maximum performance, and compliance with the EMC
Directive, can only be ensured by correct installation. It is
strongly recommended that the installation conforms with
the following standards:
SMALL CRAFT - ELECTRICAL SYSTEMS:
a) ISO 10133 -Extra Low-Voltage DC Installations
b) ISO 13297 -Alternating Current Installations
ISO = International Standards Organisation
The information contained in this manual is believed to be accurate at
the time of going to print but no responsibility, direct or consequential,
can be accepted by Cetrek Ltd. for damage resulting from the use of this
information. Cetrek Ltd. reserve the right to make changes without
notice to any of its products.
© Cetrek Ltd 1998

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Contents
1. Using the Instrument ................ 7
2. Speed Information .................. 12
3. Depth Information .................. 14
4. Multi Data Information ........... 16
5. NAV Data Information ............. 18
6. WIND Information ................... 20
7. HEADING Information ............. 22
8. Temperature Information......... 24
9. Battery Voltage Information .... 25
10. Configuration Settings .......... 26
11. Installation............................ 33
12. Alarms .................................. 36
13. Message Formats .................. 37
Index .......................................... 39

C-net 2000 MULTI
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The C-net 2000 MULTI.
930640 and 930650
LCD (Liquid Crystal Display ) screen.
The C-net 2000 Multi has five soft keys whose function
changes depending on the display, in general the Grey
keys change the displayed information and the Blue key
adjusts viewing conditions.
There is a simple upgrade to convert the Coastal version to
an Ocean version, part number 930022.

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1. Using the Instrument
1.1 Introduction
There are two versions of the C-net 2000 Multi, Coastal
and Ocean.
Coastal displays: Ocean displays:
‰Speed ‰Speed
‰Depth ‰Depth
‰Water Temperature ‰Water Temp.
‰Battery Voltage ‰Battery Voltage
‰Navigator
‰Wind
‰Heading
‰Rudder Angle
The information can each be displayed in many different
ways, for example:
as a GRAPHICAL display as an ANALOGUE display
as a BIG digital display as a MULTI DATA display

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1.2 Getting Started
When the self-test routine is complete, the display will
change to show the last viewed information display.
In this example, the Speed Graph display.
When first pow-
ered up, the C-net
2000 Multi will
carry out a self-
test routine.
Here is shown the
software version.
The ID number.
Checksum
numbers.
The bar chart
gives an
indication of how
far self testing has
progressed.

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Use the key below this to
increase the lighting
brightness
Use the key below
this to increase the
contrast
Use the key below this to
decrease the contrast
Use the key below this to
decrease the lighting
brightness
Bar graph shows the
setting. This changes
as the keys are
pressed
Use the key below
this to return to
the current
information
display
1.3 Lighting and Contrast
Press the blue button while viewing an information
display, and the LCD lighting and contrast adjustment
becomes available. Adjust these to give the most
comfortable image.
CONTRAST RESET
If the display contrast was to be set so that the
display was unreadable and so could not be
adjusted back, press all four grey keys together.
This will reset the contrast to a central value, reset
the lighting to full and reset the language to
English.
Calibration data will not be lost.

C-net 2000 MULTI
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ñ
1.4 Changing the Information Display
Press any of the grey buttons, while viewing an
information display, and a pop-up menu will be displayed
at the bottom of the screen.
The menu shows the current function of each button.
After each press of a Grey key the display changes to the
selected Information Display.
If no button is pressed within 5 seconds, the menu will
slowly sink off the bottom of the screen.
Press any Grey button to recall the menu.
SPEED Graph DEPTH Graph MULTI Data 1
SPEED Gauge DEPTH Gauge MULTI Data 2
SPEED Big DEPTH Big MULTI Quad 1
SPEED Statistics DEPTH Statistics MULTI Quad 2
SPEED Log DEPTH Alarms
RACE Timer
Stopwatch
Each press cycles
through the
Speed Displays
Each press cycles
through the
Depth Displays
Each press cycles
through the Multi
Data Displays
Changes the
menu to the
second set of
options
ñ
ñ
ñ
ñ
ñ
These are in the
Ocean and
Coastal
versions
Quad2 is in the
Ocean version
only.

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Each press cycles
through the
Temperature Displays
Each press cycles
through the
Battery Displays
Changes the
menu to the
first set of
options
NAV Glide Wind Gauge HEAD Digital
NAV Position Wind Tack HEAD Big
NAV D.R. WIND Stats HEAD Tack
NAV Tide Wind Speed HEAD Gauge
NAV Plot WIND Angle HEAD Card
WIND Big HEAD Pilot
WIND Alarm HEAD Rudder
WIND Digital
Each press cycles
through the NAV
Displays
Each press cycles
through the Wind
Displays
Each press cycles
through the Heading
Displays Changes the
menu to the
third set of
options
ñ
ñ
Temperature Graph Battery Graph
Temperature Gauge Battery Gauge
Temperature Big Battery Big
Temperature Statistics Battery Statistics
ñ
ñ
ñ
ñ
ñ
ñ
ñ
ñ
These are in
the Ocean and
Coastal
versions
These are in
the Ocean
version only

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2. Speed Information
SPEED GRAPH
Digital display of the vessels speed.
Graph of the speed over the last two minutes.
SPEED GAUGE
A moving pointer representation of the vessels speed, with
a small digital display. The gauge will auto scale to suit the
input data.
SPEED BIG
A digital display using big characters.
SPEED STATISTICS
Displays of the fastest and the average Speed, since the
C-net 2000 Multi was powered up or reset.
Press any Grey key, the menu will now have a RESET
option. This resets both values to the current speed.
SPEED LOG
Displays of Distance and Time, as both Trip and Total.
Press any Grey key, the menu will now have a RESET
option.
This resets both Trip Distance and Trip Time to zero.
Total Distance and Total Time cannot be reset.

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RACE TIMER
This is a countdown to the start of a race. The timer then
starts counting up to time the race itself.
Press any Grey key, the menu will now have a SET TIMER
option. Press this key, the options are displayed: Set Timer,
Start, Stop and OK. Press the SET TIMER key repeatedly to
select the countdown period required, up to 10 minutes.
Press the START key to start the countdown. An audible
bleep will sound at 5 minutes , 1 minute, then every 10
seconds. A long bleep (3 seconds) is sounded when the
countdown is completed and the Race Timer starts
counting up.
The timer will continue to run, even if you switch to other
displays, until STOP is pressed.
Press the STOP key to stop the Race Timer.
Press the OK key to exit the SET TIMER controls.
STOPWATCH
Press any Grey key, the menu will now have a SET WATCH
option. Press this key and five options are displayed:
START, STOP, LAP TIME, RESET and OK.
Press the START key to start the stopwatch. Press the LAP
key after completing a lap. The lap time is displayed until
the LAP key is pressed again.
Press the STOP key to stop the Stopwatch.
Press the RESET key to reset the Stopwatch to zero.
Press the OK key to exit the SET WATCH controls.
The stopwatch will continue to run, even if you switch to
other displays, until STOP is pressed.

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3. Depth Information
DEPTH GRAPH
Digital display of the depth of water under the vessel.
Graph of the depth over the last two minutes.
DEPTH GAUGE
A moving pointer representation of the depth, with a
small digital display. The gauge will auto scale to suit the
input data.
DEPTH BIG
A digital display using big characters.
DEPTH STATISTICS
Displays of the deepest Depth recorded, and the average
Depth, since the C-net 2000 Multi was powered up or
reset.
Press any Grey key, the menu will now have a RESET
option. This resets the three values to the current depth.
DEPTH ALARMS
There are four alarms that can be set:
Shallow and Anchor Shallow give alarms when the
measured depth is less than the setting.
Deep and Anchor Deep give alarms when the measured
depth is more than this setting.

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Shallow/Anchor Shallow increment in one unit,
Deep/Anchor Deep increment in ten units
These alarms
are active
These alarms
are not active
Used to select the alarm
you wish to change Use to adjust the selected alarm
(Deep Anchor in this example),
a new menu will be displayed
Use to exit the
ADJUST option
Press any Grey key, the menu will now have an ADJUST
option. Press the Blue key.
Used to change
depth of the alarm
Use to return to
the previous menu
Use to switch the alarm
On or Off
Press the OK key in each level of the menu to exit the
ADJUST option.
Depth Alarms are global in a system. The Depth Alarm
settings can be changed at any unit in a system. The
setting will change on every unit in the system.
A pop-up window will be displayed, if an active Depth
Alarm setting is reached. Press any key to clear the pop-up
window.

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4. Multi Data Information
MULTI Data1
Displays two windows, press a grey key for adjust option.
The black box represents the window changed by that key.
Press the key repeatedly to step through the options that
can be displayed in that window. Stop at the one required.
This selection will be stored for future use.
MULTI Data2
A second display of two windows, adjusted as above.
Choices for display, if the system has the information, are:
Coastal: SPEED, DEPTH, TEMP, DISTANCE.
Ocean: SPEED, DEPTH, TEMP, DISTANCE, HEADING,
POSITION, SOG, COG, WIND_SPEED, WIND_ANGLE.

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MULTI Quad1
Displays four windows, press a grey key for adjust option.
The black box represents the window changed by that key.
Press the key repeatedly to step through the options that
can be displayed in that window. Stop at the one required.
This selection will be stored for future use.
MULTI Quad2 only on Ocean versions
A second display of four windows, adjusted as above.
Choices for display, if the system has the information, are:
Coastal: SPEED, DEPTH, TEMP, DISTANCE.
Ocean: SPEED, DEPTH, TEMP, DISTANCE, SOG, COG,
HEADING, RUDDER, XTE.

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5. NAV Data Information
Ocean version only
The Navigator pages repeat information from a Navigation
system. It could be a sophisticated Chart Plotter system or
a simple hand held GPS. The data is received from any
standard NMEA 0183 source. Only one source is allowed.
If the signal is from a Differential GPS, a D will be
displayed in the top right corner of the display
NAV Glide
The first screen shown is the Glide Path view of an
approaching waypoint. The distance, bearing and
waypoint name is shown clearly at the top of the screen.
Also on the screen is the current water speed and depth
reading. The boat symbol at the bottom of the screen
indicates the distance off-track from the direct course to
the waypoint.
NAV Pos
This screen shows the vessels current position, course and
speed.
NAV D.R.
This screen displays dead reckoning information. It uses
boat water speed and compass heading input to calculate
total distance and course made good since power on. Also
available is a RESET function. In the event of a GPS failure
this screen can be used to assist manual navigation.

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NAV Tide
The display shows the strength and direction of the tidal
flow.
This requires information from the Navigation System
(better with GPS or best with DGPS), an accurately
calibrated water speed sensor and heading input. The
difference between these sensor inputs allows the tidal
stream to be measured.
NAV Plot
A basic plotter screen, showing the recent history of
positions taken once per second. An ADJUST mode
provides a Zoom feature and the ability to store a single
event.
When an event has been stored and is turned on, the
display will indicate the distance and bearing back to the
event. The event data is lost when the power is removed.
The event data is local and is not shared between other
MULTIs in the system.

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6. WIND Information
Ocean version only
WIND Gauge
A replica of an Analogue display, showing live wind angle
and wind speed. A choice of TRUE or APPARENT and speed
units can be made from the system menu, section 10,
page 26.
WIND TACK
As above, but with an amplified scale for close hauled and
running. The needle is three times more sensitive to
changing wind angle in this mode.
WIND Stats
A useful summary of the highest wind speed, average
wind speed and average wind angle. The statistics have a
RESET option.
WIND Speed
This screen has a 2 hour history of wind speed relative to
the Earth or ground. The current value is shown above the
graph. This allows the trend in the wind strength to be
easily seen.