Version 1.02 October 2014
page 20
OMC-140 Operators’ Manual
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
Summary of Contents for OMC-140
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