Observator OMC-140 User manual

OMC-140
Multifunctional NMEA Display
Operators’ Manual
Version 1.02
Firmware x.x
TDC 20-08-2014

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OMC-140 Operators’ Manual
Revisions:
1.01 (20-07-2014) First issue
1.02 (-10-2014) Preliminary edition

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OMC-140 Operators’ Manual
Index
1Introduction............................................................................................................................................ 5
2Safety .................................................................................................................................................... 6
3Display functions ................................................................................................................................... 7
3.1Main screen Wind........................................................................................................................ 7
3.1.1Main screen ‘buttons’:............................................................................................................. 8
3.1.2Main screen indicators:........................................................................................................... 8
3.2Main screen GPS ...................................................................................................................... 10
3.2.1Default Home screen functions:............................................................................................ 10
3.2.2Touch Buttons:...................................................................................................................... 11
3.2.3Default Indicators: ................................................................................................................. 12
3.3Main Screen Heading................................................................................................................ 13
3.4Default Home screen functions: ................................................................................................ 13
3.5Touch Buttons: .......................................................................................................................... 14
3.5.1Default Indicators: ................................................................................................................. 15
3.6Available indicators: .................................................................................................................. 16
3.7General Settings Screen ........................................................................................................... 19
3.7.1Average (wind only) .............................................................................................................. 20
3.7.2Wind Speed (wind only)........................................................................................................ 20
3.7.3Dimming control .................................................................................................................... 20
3.7.4Sensor Selection................................................................................................................... 20
3.7.5Speed reference (wind only)................................................................................................. 20
3.7.6User Avg.(Average) Interval (wind only)............................................................................... 21
4Advanced functions ............................................................................................................................. 22
4.1Screen layout ............................................................................................................................ 22
5Direction Reference Requirements ..................................................................................................... 24
6Terms, Abbreviations & Symbols list................................................................................................... 25
6.1Terms & Abbreviations.............................................................................................................. 25
6.2Symbols..................................................................................................................................... 25
7Digital interface.................................................................................................................................... 26
7.1NMEA software ......................................................................................................................... 26
7.1.1Inputs: ................................................................................................................................... 26
7.1.2Outputs: ................................................................................................................................ 26
7.2NMEA Hardware: ...................................................................................................................... 31
9Connections......................................................................................................................................... 32
10Specifications................................................................................................................................... 33
10.1Inputs/Outputs ........................................................................................................................... 33
10.2TFT touch screen ...................................................................................................................... 33
10.3Electrical.................................................................................................................................... 33
10.4Environmental specifications..................................................................................................... 33
10.5Dimming possibilities................................................................................................................. 33
10.6Dimensions (see drawings on following page).......................................................................... 33
10.7Alarms ....................................................................................................................................... 34
10.8In accordance with .................................................................................................................... 34
11Dimensional drawings...................................................................................................................... 35
12Menu structure Touch screen.......................................................................................................... 36
13Menu Structure Terminal Mode ....................................................................................................... 39
14Appendix: Declaration of Conformity ............................................................................................... 44

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OMC-140 Operators’ Manual
1 Introduction
The OMC- 140 is a multi functional NMEA display primarily designed for wind information.
It is capable of calculation Theoretical and True wind if required data is available.
This manual is intended for the Operator of the display.
An Operators Guide with the basic essential information is also available.
For installation we kindly refer to the Installation manual.

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2 Safety
The display is designed for indoor use.
Outdoors an IP- 66 cabinet is required.
No user exchangeable parts inside.
Do not open the enclosure. This will void your warranty.
Instrument must be installed according the procedure in the Installation Manual.
Although all inputs are protected, incorrect installation can cause damage not
covered by warranty!
Instruments are tools; they do NOT replace your own observations!

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3 Display functions
3.1 Main screen Wind

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3.1.1 Main screen ‘buttons’:
3.1.2 Main screen indicators:
Selected Orientation. Relative, Theoretical or True
Wind Direction indicator.
Shows the average wind direction over the selected interval time.
Wind direction variation over the selected interval.
Shows max Gust over the selected interval time. If ‘Instant’ is selected it
shows the Max Gust since last reset.
Touch to reset
Selected wind sensor and selection mode.
Average interval time. 10 min, 2 min, Instant or User
Wind speed average over the selected interval time.
Wind speed Unit. Bft, Mph, m/s, Kts or km/h
Select between Day or Night mode.
In Night mode a darker color palette reduces the emitted light
intensity.
Brightness slider bar.
In Automatic or NMEA control mode use this to set an offset.
This will open the settings menu
Only visible when an alarm is active. Touch this button to
acknowledge the alarm.

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Heart beat. The dot should be running from left to right to indicate the
display is working and not frozen.
Wind direction variation over the selected average interval time.
Average wind direction over the selected average interval.

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3.2 Main screen GPS
3.2.1 Default Home screen functions:

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3.2.2 Touch Buttons:
Note: The display is single touch, the display will not respond if multiple touch is detected. Don’t place
your hand on the edge while trying to touch a button, since this could be detected as a touch.
* Reference to the required NMEA input message
Select between Day or Night mode.
In Night mode a darker color palette reduces the
emitted light intensity.
Brightness slider bar.
In Automatic or NMEA control mode use this to
set an offset.
Opens the settings menu
Only visible when an alarm is active. Touch this
button to acknowledge the alarm.
Geographical Position (GGA)*
Touching will toggle between UTM data** if
available
and the Geographical data
**Requires UTM data input (GMP)*.
Speed and Course over ground (VTG)*
Touching will switch to Arrow Speed display
(Velocity & Drift) if available***.
***Requires Heading data input (HDT or THS)*.

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3.2.3 Default Indicators:
These are the factory default .
GPS Identifier. Can be set in the Settings menu
Heart beat. The dot should be running from left to right to indicate the
display is working and not frozen.
UTC time (GGA)*
Number of Satellites (GGA)*
Accuracy HDOP (GGA)*
Differential Signal received YES / NO (GGA)*
* Reference to the required NMEA input message

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3.3 Main Screen Heading
3.4 Default Home screen functions:

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3.5 Touch Buttons:
Note: The display is single touch, the display will not respond if multiple touch is detected. Don’t place
your hand on the edge while trying to touch a button, since this could be detected as a touch.
* Reference to the required NMEA input message
Select between Day or Night mode.
In Night mode a darker color palette reduces the emitted
light intensity.
Brightness slider bar.
In Automatic or NMEA control mode use this to set an
offset.
Opens the settings menu
Only visible when an alarm is active. Touch this button
to acknowledge the alarm.
Heading from Gyro (THS or HDT)*
Touch will toggle between Heading and Course
Course Over Ground (VTG)*

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3.5.1 Default Indicators:
These are the factory default .
GPS Identifier. Can be set in the Settings menu
Heart beat. The dot should be running from left to right to indicate the
display is working and not frozen.
Speed Over Ground (VTG)*
Course Over Ground (COG)*
* Reference to the required NMEA input message

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3.6 Available indicators:
These can be configured for all display types in the Advanced menu.
Please Note: The corresponding NMEA message must have been received
by the display at least once before an indicator can be
selected!
Maximum Gust over the selected interval time. If ‘Instant’ is selected it
shows the Maximum Gust since last reset. (MWV or MWD)*
Touch to reset
Wind Direction (MWV or MWD)*
Wind Speed (MWV or MWD)*
Selected Wind Sensor indicator (MWV or MWD)*
Wind variation (MWV or MWD)*
Barometric Pressure QFE (at Runway / Helideck Level).(XDR)*
Barometric Pressure QNH (at Sea Level) (XDR)*

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Relative Humidity (XDR)*
Air Temperature (XDR)*
Dew Point (XDR)*
Speed Over Ground (VTG)*
Course Over Ground (VTG)*
Heading from Gyro (HDT or THS)*
UTC time (GGA)*
Differential Signal received YES / NO (GGA)*
Number of Satellites (GGA)*
Accuracy HDOP (GGA)*

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Age of last received Differential signal (GGA)*
Visibility (Dedicated message non NMEA)
Present Weather (Dedicated message non NMEA)
Deviation of the Latitude (GST)*
Deviation of the Longitude (GST)*
* Reference to the required NMEA input message

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3.7 General Settings Screen
The General Settings Screen is accessible for all users, but some functions can be locked by the
administrator, while others might not be available for other reasons.
Grayed out blocks are not accessible. For example: the ‘User Average Period’ is only accessible when
‘User’ is selected at ‘Average Period’.
The screen is divided in blocks.
Touching it will zoom in and allow you to make changes.
Use ‘Save & Exit’ to store your changes and return to the Main screen. Otherwise use ‘Cancel’ to
discard all changes and return to the Main screen. Display will also return to normal operation if
no touch is detected for 1 minute.

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3.7.1 Average (wind only)
Set the interval over which all data (except Gust) will be averaged.
Gust will be given over the selected interval (2 & 10 minutes), since last reset (Instant) or at User setting
(User).
Normally wind information is reported in 10 minute average data. During specific changing conditions you
will need to change to 2 minutes average. The OMC-140 can detect those conditions and change
automatic between 10 & 2 minute average if ‘Marked Discontinuity’ is set in ‘Advanced Settings (default is
off).
3.7.2 Wind Speed (wind only)
Selection of wind speed unit.
3.7.3 Dimming control
Select how you would like to control the brightness of the screen.
Manual: Brightness is set by the slider bar only
Automatic: Brightness is controlled by the build in light sensor. The slider bar can be used to set an
offset.
NMEA DDC: Brightness is controlled by the NMEA DDC protocol. This can be another display or any
other device using the NMEA DDC protocol.
The slider bar can be used to set an offset.
3.7.4 Sensor Selection
Only selectable when 2 sensors are connected, otherwise it will be grayed out.
Auto: Sensor with highest wind speed will be selected
Sensor 1: Data of sensor on port 1 will be displayed
Sensor 2: Data of sensor on port 2 will be displayed
3.7.5 Speed reference (wind only)
Options are only selectable if the required data is available (see chapter 5)
Relative: Wind direction & speed data related to the bow of the vessel
Theoretical: Wind direction & speed data related to the bow of the vessel as if the vessel would have
no speed (True wind related to the bow).
True: Wind direction & speed data related to true North