Observator Instruments OMC-140 User manual

OMC-140 Multifunctional NMEA display
Installation Manual
Version 1.18 2019
Author: Observator Instruments

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Revisions:
1.01 (January 2014) First issue Preliminary edition
1.02 (June 2015)
1.03 (September 2015)
1.04 (December 2015) First Release
1.05 (February 2016) Added: Wind Alarm information
1.06 (August 2016) Update USB menu, added input retired NMEA Messages.
1.07 (October 2016) Reviewed version
1.08 (November 2016) Correction NMEA XDR input message water temperature p29
1.09 (February 2017) Added: Data log function, mounting plate update
1.10 (June 2017) Changed DNV Standard for Certification No. 2.4 to DNVGL-CG-0339
1.11 (March 2017) Added: 24VDC version
1.12 (October 2017) Added: information concerning character height / installation instructions
1.13 (November 2017) Update: extra functionality firmware 001.003B034 and up.
1.14 (February 2018) Update: extra functionality from v 2.4 and up, correction DDC sentence.
1.15 (February 2019) Update: v2.6
1.16 (March 2019) Added Airport setup.
1.17 (March 2019) Added NMEA TAG information .
1.18 (April 2019) Some updates
Disclaimer:
Observator Instruments reserves the right to improve their products and therefore
specifications might change without prior notice.

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Index
1Introduction........................................................................................................................................... 6
2Safety ................................................................................................................................................... 7
3Identification ......................................................................................................................................... 8
3.1 Standard Items in the box .......................................................................................................... 8
3.2 Optional items ............................................................................................................................ 9
3.3 Display...................................................................................................................................... 10
3.4 Option modules........................................................................................................................ 11
3.4.1 Installation Option Modules ................................................................................................. 11
4Mounting............................................................................................................................................. 12
4.1 Mounting location..................................................................................................................... 12
4.2 Mounting position..................................................................................................................... 12
4.3 Panel cut-out ............................................................................................................................ 12
4.4 Mounting plate.......................................................................................................................... 12
5Terminals............................................................................................................................................ 13
5.1 Sensor connection.................................................................................................................... 13
5.2 Main connections ..................................................................................................................... 13
5.3 AC Power Connection.............................................................................................................. 14
5.4 DC power connection............................................................................................................... 14
5.5 DC power module connections (optional)................................................................................ 14
5.6 Remote keypad and relay module (optional) ........................................................................... 15
5.7 Connections ............................................................................................................................. 16
6Commissioning................................................................................................................................... 17
6.1 Preparations............................................................................................................................. 17
6.2 Display Type Selection............................................................................................................. 17
6.3 Configuration via Touch screen ............................................................................................... 21
6.4 Advanced ................................................................................................................................. 21
6.4.1 Advanced password (default 1382) ..................................................................................... 21
6.4.2 Advanced settings................................................................................................................ 22
6.4.1 NMEA................................................................................................................................... 25
6.4.2 Front (Screen layout)........................................................................................................... 26
6.4.3 Rotated wind circle & boat symbol....................................................................................... 26
6.4.4 Enabling parameters without the actual data ...................................................................... 27
6.4.5 MeteoLink and OMC-140..................................................................................................... 28
6.4.6 Setting up Airport display..................................................................................................... 29
6.4.7 Setting up RAIN (tipping bucket) ......................................................................................... 32
6.4.8 Changing Rain gauge bucket size....................................................................................... 33
6.4.9 Sensors................................................................................................................................ 34
6.5 I/O UDP LAN (NMEA over Ethernet) ....................................................................................... 35
6.5.1 Connections via UDP........................................................................................................... 36
7Data log function ................................................................................................................................ 37
7.1 Introduction............................................................................................................................... 37
7.2 Data log function settings......................................................................................................... 37
7.3 Storage..................................................................................................................................... 38
7.4 Structure................................................................................................................................... 38
7.5 Functional information.............................................................................................................. 38
7.6 Parameters............................................................................................................................... 39
8Terminal Mode Configuration............................................................................................................. 41
9Terms, Abbreviations & Symbols list.................................................................................................. 42
9.1 Terms & Abbreviations............................................................................................................. 42
9.2 Symbols.................................................................................................................................... 42
10 Digital interface............................................................................................................................... 43
10.1 NMEA software ........................................................................................................................ 43
10.1.1 Inputs: .................................................................................................................................. 43
10.1.2 Outputs: ............................................................................................................................... 43
10.1.3 TAG notes............................................................................................................................ 44
10.2 NMEA UDP protocol ................................................................................................................ 45
10.3 UDP-tag calculation ................................................................................................................. 46
10.3.1 UDP-tag combination........................................................................................................... 46

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10.4 NMEA Message description..................................................................................................... 46
11 NMEA Hardware:............................................................................................................................ 52
13 Specifications.................................................................................................................................. 53
13.1 Inputs/Outputs.......................................................................................................................... 53
13.2 TFT touch screen..................................................................................................................... 53
13.3 Electrical................................................................................................................................... 53
13.4 Environmental specifications.................................................................................................... 53
13.5 Dimming possibilities................................................................................................................ 53
13.6 Dimensions............................................................................................................................... 54
13.7 Alarms ...................................................................................................................................... 54
13.8 In accordance with ................................................................................................................... 54
13.9 Cable specs remote & relay outputs:....................................................................................... 54
13.10 Compass safe distance............................................................................................................ 54
14 Menu structure Touch screen......................................................................................................... 55
15 Menu Structure Terminal Mode...................................................................................................... 58
16 Dimensional drawings..................................................................................................................... 65
17 Panel cut-outs................................................................................................................................. 67
17.1 Recommended panel cut-out................................................................................................... 67
17.2 Panel cut-out for retrofit 144x144 instrument.......................................................................... 67
17.3 Optional Keypad panel cut-out................................................................................................. 68

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1 Introduction
This manual contains required information for installation, commissioning and integrating the OMC-140
display. For operating the display we kindly refer to the Operators’ Guide and Operators’ Manual.
Some information will be available in both manuals for your convenience. We do advise to keep the
Operators manual at hand as well during installation.
After installation this manual should be kept by the system administrator of the system. It contains
information and passwords which could affect the working of the display if used without the proper care.
Observator Instruments products are under continuous development and improvement.
Functionality descripted in this manual

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2 Safety
Do not open display.
Potential lethal voltages inside.
No user exchangeable parts inside.
Indoor us only.
For outdoor use an IP66 or better housing is required.
For correct functioning of this display the display and connected
sensors must be installed according installation instructions.
Remember: instruments are tools.
They do NOT replace your own observations!
Note the correct power supply voltage:
Do not connect AC power to DC version of display!
After end of life dispose this product according local regulations
or return to manufacturer.

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3 Identification
3.1 Standard Items in the box
Item
pce
Description
1
Display
1
Seal for IP22 Panel mounting
4
Panel mounting screw Nylon
1
Panel mounting plate
4
M4 -12mm hex screw
1*
Green AC power connector
(mounted on the display)
1*
Black 24VDC power connector
(mounted on Display)
2
4 Terminal connector input
(mounted on the display)
1
3 Terminal connector output
(mounted on the display)
*Either the green (AC) or black (DC) power connector is included.

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3.2 Optional items
1. Spacer for 144x144 (retrofit) mounting.
2. Bracket
3. Micro USB cable
4. Cleaning kit
5. 12-24 VDC PSU module
6. Remote control panel
7. Micro SD card max 32GB
8. Power connector cable housing

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3.4 Option modules
If any option modules are included, install them before mounting.
The modules can be installed in any of the 3 slots, but we do recommend to place the DC power module
in slot one, which is on top.
3.4.1 Installation Option Modules
Beware of ESD when installing the option modules, wear an antistatic wrist belt, avoid touching any
electronics on the module.
1. Remove the protection plate of the slot to be used, save the screws for locking the module later.
2. Remove package of option module
3. Position the module with the connector facing the display on the left side and carefully slide the
module in the module slot.
4. Secure the module with the screws from the protection plate.

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4 Mounting
4.1 Mounting location
Choosing the right location is important for correct functioning of the display.
Please mind the following recommendations:
Although the display has an antiglare filter it is recommended to choose a position where the
display doesn’t reflect direct light.
If the operator will need to operate the display it must be in reach or the optional remote panel
should be installed.
Dimming can also be remotely controlled using the NMEA DCC message.
Allow enough space for cabling.
Allow enough space for service.
Mind the viewing distance according IEC 62288:2014 paragraph 4.3:
oFor the wind speed indication in the center, the character height is 10 mm which
corresponds to a nominal viewing distance of 2.85 meters
oFor the other numeric fields the character height is 7 mm which corresponds to a
nominal viewing distance of 2 meters
4.2 Mounting position
The display can be mounted either in Landscape (default) or Portrait position.
Landscape is preferable since it allows maximum use of the display area. Portrait mode has 2 data
positions less.
The display can be panel mounted, desktop or ceiling mounted.
For ceiling or desktop mounting an optional bracket is available.
4.3 Panel cut-out
For new installations we recommend to use the large cut-out of 228x142mm.
Optional the display can be fitted in the 144x144 position (cut-out 138x138mm) and optional spacer is
available. This can be useful for refits (replacement of the OMC-138, 139 or 934 or any other 144
display.
Cut-out drawings can be found in chapter 17 Panel cut-outs.
IP 22 rating only for 228x142mm panel mount with use of included seal!
4.4 Mounting plate
For panel mount, the display must be fitted first.
Attach the square mounting plate from the back on the position as marked in chapter Error! Reference
ource not found. and tighten the 4 M4 screws without any force.
Secure the display using the 4 Nylon screws, tighten them carefully by hand. If hard to reach a Phillips
screwdriver can be used, but do not use any force.
No force should be used to tighten the Mounting clamps and Nylon screws!

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5 Terminals
5.1 Sensor connection
The OMC-140 display has 2 isolated NMEA inputs, both with power output available.
The power outputs have a configurable watchdog option, whenever no valid signal is received for 10s
(default setting), the power will be interrupted to reset the attached sensor.
Use a NMEA multiplexer like Observator MeteoLink whenever you require more NMEA inputs.
The display has 1 NMEA output.
All NMEA and Mains terminals are suitable for wires up to 2.5mm2.
5.2 Main connections
LAN For future use
1 power out GND
2 power out +15Vdc (watchdogged)
3 NMEA input 1 A
4 NMEA input 1 B
5 power out GND
6 power out +15Vdc (watchdogged)
7 NMEA input 2 A
8 NMEA input 2 B
9 NMEA output A
10 NMEA output B
11 Output shield connection*
USB Micro USB connection for advanced
programming and firmware updates.
100 .. 240 VAC
LED Function Power
(Green connector)
1 Power input 1
2 Data input 1 Optional 24VDC
3 Power input 2 (Black connector)
4 Data input 2 see chapter 5.4
5 Data output
*Shield connection is for output only, input shield should never be connected to the display!

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5.3 AC Power Connection
The standard OMC-140 Display accepts AC voltages in the range of 100 .. 240VAC @ 45 ..
65 Hz.
The connection is meant for panel mount installations.
For AC power a green connector is used.
Note: For installations where the AC Mains connection is accessible the optional connector cover
must be installed!
5.4 DC power connection
Optional the display can be delivered suitable for 24VDC.
It has a different power supply not suitable for AC power!
The DC power connecter is black.
The display is marked to be suitable for DC power (18 .. 32VDC)
5.5 DC power module connections (optional)
Optional the AC version of the OMC-140 display can be supplied with a DC power module.
This enables the display to be powered by both AC and DC power.
Useful if backup power is required.
Due to the wide range of the DC input it also allows the display to run on 12VDC.
DC power
1 GND
2 Power +9…+30VDC

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5.6 Remote keypad and relay module (optional)
Left Connector
1 .. 5 Remote Keypad
Right connector: Relay outputs
6 Relay 1 NO contact
7 Relay 1 Common
8 Relay 1 NC contact
9 Relay 2NO contact
10 Relay 2 Common
11 Relay 2 NC contact

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5.7 Connections
Connect the data cable(s) for input and output if required.
Connect the keypad (if applicable).
Finally connect the power cable.
If the AC connector is used
Details of the terminal connection can be found in the next chapter.
Connection overview

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6 Commissioning
6.1 Preparations
Normal configuration can be done via the touch screen, alternatively this can be done via terminal or by
loading a configuration from a micro SD card*
The display has an auto configuring function: it will makes functions available based on recognized
NMEA 0183 messages.
To fully use the auto configure function all inputs should be connected and operational.
* the SD card is optional, if fitted the configuration will be stored every 24h or whenever the configuration
has been changed. The configuration file name is config.dat.
6.2 Display Type Selection
The first time the display is started it will give you the option to select the type.
Perform a Factory Reset if the display has been configured before and you want to select a different
type.
The Factory Reset is described in paragraph 6.4 Advanced.

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All types can display all accepted NMEA data in decimal format, but each has specific graphics or layout
for its purpose:
Symbol
Display type
Specific Features
Front tab
Marine Wind
Vessel graphic for
Relative & Theoretical
wind display
Wind rose graphic for
True wind display
Land Wind
Wind rose graphic
GPS repeater
Large position field
Arrow drift display

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Heading
Heading and /or Course
graphic presentation.
Graph
Display up to 6
parameters of which 2
graphical.
Cloud
Cloud height and
coverage up to 3 layers.
Lighting
Lightning display for use
with BTD3xx sensor
Airport
Airborne wind display with
runway graphic.
Echo Sounder
Graphical water depth +
max 6 parameters.
Heading 2
Heading display full circle
Log speed
Log speed gauge

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Rate Of Turn
R.O.T. gauge
Demo Modus
Demonstration mode,
toggle between all
available display types.
Loads a
configuration from
the SD card
Filename should be:
config.dat
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