Gill develops IS Anemometer to meet the challenges of offshore

Jun 18, 2015

WindObserver ISKeeping a deep sea drilling vessel in position whilst it is drilling and recovering rock samples over 2100 metres below the seafloor is demanding. It requires the highest reliability and accuracy from the instrumentation providing positioning data. In addition, monitoring equipment on the vessel needs to be certified intrinsically safe for use in hazardous areas.

The Challenge

In response to the demand for intrinsically safe instrumentation, Gill R&D were tasked with taking sister company Gill Instruments' WindObserver ultrasonic anemometer and designing it to meet IS approval requirements.

Using the existing WindObserver model as a base, Gill Engineers worked closely with certification body SIRA to adapt the design to intrinsic safety requirements and then enter the process of preparing all the documentation required to achieve certification.

The Results

The approved product, the WindObserver IS, was developed specifically to service the offshore market, thereby eliminating the expensive annual maintenance that the mechanical anemometers required.

With ATEX and IECEx certifications, the solid-state, ultrasonic anemometers provide the long-term reliability and measurement precision that was previously unavailable from offshore cup and vane equipment.

Utilising manufacturing capability certified to IS standards, Gill was able to take the product right through the design, certification and manufacturing cycle. This end-to-end capability provides customers with a full service offering, able to deliver IS certified products backed by extensive knowledge and experience.

The WindObserver IS now provides the offshore market, amongst others, with critical measurement data required by offshore challenges. The WindObserver has been installed on drilling vessels including the Chikyu and global offshore oil rigs.

Project results and benefits

  • Successful delivery of a certified IS product for market supply
  • Delivered a fully tested and certified sensor design whilst meeting the compressed timescales of the customer


Find out more about the Instruments WindObserver IS Intrinsically Safe ultrasonic anemometer at



Do you have a new development requirement?

We have extensive experience taking projects through all phases of development, in rapid timeframes.


Tel: +44 (0)1590 613400








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