Intrinsically Safe Anemometer for Hazardous Areas Key Features  ATEX and IECEx certification Low voltage or mains voltage power supplies  Galvanic isolation  Gill or NMEA digital output  Averaging/gusts to WMO guidelines  Reduce offshore maintenance costs 0-75m/s wind speed operation  Over 10 years proven service worldwide  Factory calibrated for life  The WindObserver IS system is particularly suited to offshore oil production platforms, support tankers, drilling platforms, onshore petrochemical plants and other hazardous petrochemical environments. The system provides wind speed and direction data for use in producing offshore meteorological observations in accordance with UK CAA CAP 437. The WindObserver IS is certified as ‘Intrinsically Safe’ for use in the ‘Hazardous Area’, whilst the associated power and communications interface is located in the ‘Non Hazardous Area’. The ATEX and IECEx certification ensures that the wind system may be deployed on a worldwide basis without the need for expensive local recertification. The system requires no regular maintenance, beyond a visual check, eliminating in-service maintenance costs in the offshore environment where the installation of reliable low maintenance equipment is essential. Customer selectable vector rolling average and 3 second gust in accordance with WMO - No. 8 Seventh Edition 2008 ISBN 978-92-63-10008-5. HAZARDOUS AREA NON-HAZARDOUS AREA Low voltage (DC) Power & communications interface (LVPCI) WindObserver IS Intrinsically safe ultrasonic anemometer Mains voltage (AC) Power & communications i

Intrinsically Safe Anemometer for Hazardous Areas EExe rated junction box (customer supply) WindObserver IS Ultrasonic Anemometer 3 slotted fixing holes for 3 long 3 pair screened test purposes only WIND SPEED POWER REQUIREMENT

Intrinsically Safe Anemometer for Hazardous Areas Low Voltage Power & Communications Interface (LVPCI) for use in Non-Hazardous areas Hole Dimensioning and Positioning RS232 link to PC and RS422 link to display etc EExe rated junction box [customer supply) Mains Voltage Power & Communications Interface (PCI) for use in Non-Hazardous areas 485mm including allowance for opening door 285mm fixing hole centres 375mm including allowance for opening door Cable gland plate (cable glands supplied by customer) R5232 link to PC and RS422 link to display etc. EExe rated junction box (customer supply)

Intrinsically Safe Anemometer for Hazardous Areas CERTIFICATIONS & APPROVALS LOW VOLTAGE POWER & COMMUNICATION INTERFACE (Ta = -30°C to +40°C) Approvals Intrinsic Safety MAINS VOLTAGE POWER & COMMUNICATION INTERFACE Certification code Certification number Certification number Certification code Approvals Intrinsic Safety Certificates are available to view in full in the Gill User Manual Certificates are available to view in full in the Gill User Manual INPUTS AND OUTPUTS Digital Input Digital Input RS422 (data from WindObserver IS to LVPCI) RS422 (data from WindObserver IS to PCI) Data lines...