OMC-938 Meteo Display
OMC-938 Meteo Display
OMC-938 Meteorological Display unit
Observator instruments offers the widest range of display
instruments, for local read out of meteorological parameters. The OMC-938 is an instrument capable of indicating
local wind information and has the possibility for the display of four additional parameters. The instrument is provided with a facility to use interchangeable legends. This
makes it as flexible as possible.
The OMC-938 is ideal to be used in a.o. fixed offshore
applications and critical information for helicopter
approach can be displayed in e.g. the radio room.
But obviously also in other situations were local Met information is required.
Easy read-out of meteorological information
Multi purpose display with interchangeable legends
Serial input RS422 or Current loop
Interface available for most common sensors
LED circles for wind direction and variation
Scaling in m/s, km/h, kts mph and Beaufort
Selectable averaging interval time in 2 min. 10 min.
And user programmable
Indication of gust or minimum wind speed
Brightness control
Standard serial output RS232 / RS422
Black Line version in Optional housing
Helicopter approach on platform
The wind direction is indicated within in a double LED circle 36 leds for average direction and variation. Inside this
circles a three digit digital display indicates the wind
speed. A second three-digit display located in the lower
right corner provides maximum or minimum wind information indicated by LED’s in front of the display.
The wind information can be displayed in m/s, knots, mph,
km/h or Beaufort. Selection of these units can easily made
using the MENU option within the integrated membrane
keys. Another MENU option is the choice of the averaging
interval, which can be set at 2 minutes, 10 minutes or every other “user” programmed interval. When not in the
MENU mode the up and down keys are used for brightness control or gust reset.
The four additional displays are provided with interchangeable legends. Depending of which sensors are used various I/O modules are available, delivered with the unit. The
most common meteorological and hydrological sensors
can be used, such as wind speed and wind direction, sea
and air temperature, humidity, barometric pressure, etc.
 Double LED circle with 36 LED’s for aver age direction
and variation
 Five 5 digits red LED displays size 14.3 mm height
 Interchangeable legends
 230 VAC, 115 VAC, 24 VDC, 30v max.
 1 digital pulse input
 1 analogue input (potmeter)
 2 RS422 or current loop inputs
 2 RS422 or current loop
 2 analogue outputs (optional)
 digital output RS422
 Size 288 x 144 x 94 mm standard Din size
 Weight 1700 gram
 Maximum panel thickness 8 mm
Many in- and output connections are available, either as
standard or as option. The unit was primary intended to
use with the Obsermet sensors, but other, most common
sensors can be connected to the system.
All information of the connected sensors can be transmitted within the serial output string.
 Operating temperature –30 to 60 deg. C.
 Moisture protection IP40
 Humidity 5 to 90%
 EMC EN 50081-1 class B, EN 50082-2
 OMC-127 dual analogue outputs 4..20mA or 0...1Volt
 OMC-129 remote brightness control
 OMC-776 tabletop housing with bracket
Version 012017 The Observator range is in continuous development and so specifications may be subject to change without prior notice
The OMC-938 digital weather display unit is specially designed for easily read out of wind speed and wind direction
and four other parameters. The display is housed in a 144
x 288 mm. Din size casing suitable for panel mounting. A
tabletop housing is available.
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