OMC-150 /158-2 Intrinsically safe wind sensor (Atex)


The OMC-150 is an Intrinsically Safe combined wind speed and direction sensor, based on the cup and vane principle. A complete wind set consists besides this sensor of an Eex junction box which is placed nearby the sensor OMC-156, and a Zener barrier interface box OMC-158-2. Using a sin/cos potentiometer wind direction is measured without a dead-band, while speed is measured using a proximately switch and a code cap. The unit is made from stainless steel and comes with a mounting arm which can be clamped to a mast using two U-Bolts.



  • High accuracy sensor according W.M.O.

  • Meets ATEX directive 2014/34/EU; EN 60079-0, EN 60079-0, EN 60079-11 and EN 13463-1

  • Type approved Ex ia IIC T4 Gb

  • Equipment category II 2 G

  • Certificate number DEKRA 13ATEX0119 & IECEx DEK 13.0012

  • Permitted in Zone 1 and 2

  • High reliability in every environment

  • All exposed parts in stainless steel 316

  • Plugged connection

  • Most cost effective solution for wind measurement in hazardous areas


Sensor output

  • Potmeter for direction

  • Pulse signal for speed


  • Weight 5 kg


  • Operating temperature -25..+700C

  • Ingress Protection: IP67

  • Humidity 5 to 90%

  • EMC: EN IEC 60945:2002 + C1



OMC-156 Ex Junction Box
OMC-154 Calibration Certificate



  • Speed 2% FRO

  • Speed range 0,3..75 m/s

  • Direction ± 2 degrees

  • Direction range 0..3590 (no gap)

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Express Marine Electronics Co. Ltd.


Unit 2, 23/F., Man Shing Ind. Bldg.,
307-311 Castle Peak Road,
Kwai Chung, Hong Kong

香港 葵涌 青山公路307-311號
萬勝工業大廈 23樓 2室