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OMC-118 Ultrasonic wind sensor


OMC-118 Ultrasonic wind sensor is used in cases an ultrasonic wind sensor is required. As Commercial Of The Shelf sensor, Observator has supplied this stainless steel instrument to several Navies. Other application were Observator applied this sensor are in general marine and offshore applications as well in several tunnels.

The OMC-118 can be connected to all Obsermet equipment like data loggers, signal conditioning units and displays using the NMEA or Polar format. The OMC-118 which has a standard 0..65 m/s is optionally also available in a 0..75 m/s range.



  • Enhanced anti-icing design

  • Analogue outputs

  • NMEA output

  • User selectable output format

  • Sonic temperature

  • Communication software

  • Can be connected to the Obsermet display line



Wind Direction

Range 0 - 359° Accuracy ±2° Resolution 1°


Sonic Temperature Output

Range -40°C to + 70°C


Anemometer Status

Supplied as part of output digital message


Starting Threshold

0.01 m/s

Dead Band Wind Direction



Power Requirement

Anemometer only 9-30 V DC (40mA @ 12VDC)

Optional Heating - 3A @ 24V AC or DC


Digital Output

Communication RS422, full duplex, network facility

Baud rates 1200, 2400, 4800, 9600, 19200, 38400

Formats 8 data, odd, even or no parity


Optional Analogue Outputs

Quantity 3 (speed, direction, status or sonic temperature)
Scale Multiples of ± 10m/s up to ± 70m/s

Type ± 2.5V, 0-5V or 4-20mA

V output impedance: 60 Ohms

4-20mA loading: 10-300 Ohms



Size 405mm x 210mm Weight 1.5kg



External Construction Stainless Steel 316



Moisture protection IP66 (NEMA4X)

Operating temperature -55°C to +70°C

Humidity 5% to 100% RH
Precipitation up to 300mm/hr

EMC BS EN 50081-1: 1992 (Emissions class B)

BS EN 50082-2: 1992 (Immunity)
FCC class A
Icing MILSTD810E Method 521.1 Procedure 1

Standards Traceable to NAMAS standardsSite Calibration None required

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