::::::..::::..Welcome to R K WindMast:::.....::::::::...::

- Ultrasonic Anemometers

The Solent Range of Ultrasonic wind speed and direction sensors (Anemometers) Gill has more then 20 years experience in the field of ultrasonic gas flow measurement and offers the most extensive range of wind sensors available in the market today for accurate wind speed measurement. Rugged construction and the elimination of moving parts removes the need for routine maintenance, making our wind sensors ideal for operation in all environmental conditions. All Gill ultrasonic anemometers have the same operating principle: The anemometer measures the time taken for an ultrasonic pulse to travel from one transducer to the opposite transducer and then compares it with the time taken for another pulse to travel in the opposite direction. Likewise, differences are measured between other pairs of transducers allowing calculations of both wind speed and direction. Gill products allow customer selection of output rate (between 1 and 100 outputs/sec), units of measurement, analogue output scaling and averaging (where appropriate), with options of two or three axis units. All Gill anemometers are tested and calibrated using facilities traceable to UKAS standards.
Ultrasonic 2 axis wind speed and direction sensors
	WindSonic Now with two-year warranty, the WindSonic anemometer is the real low cost alternative to conventional cup and vane or propeller wind sensors combining wind speed and direction data into one serial stream or two analogue outputs. Gill also supply free WindCom software for logging data from the serial output. The unit is lightweight (0.5kg) and robust, being manufactured from a polycarbonate blend case to withstand installation and use avoiding the problems caused by the fragility of cups or propellers. Designed for marine or land based applications, it requires no expensive site calibration or maintenance and with its corrosion free exterior, the WindSonic anemometer is a true ‘fit and forget’ wind sensor. WINDSONIC

	WindObserver II All the performance of WindSonic anemometer plus increased speed range and stainless steel construction, optional de-icing system to extend operational temperature range. Also includes IP66 enclosure and sonic temperature output and averaging (1-3600s) – which can be logged using the free Gill WindCom software. The WindObserver wind sensor has a proven record in airport, offshore, and marine applications and has been rigorously tested to international standards and is type approved by the Lloyds register of London. WINDOBSERVER II

	High Speed WindObserver for wind speeds up to 75 m/s (168 mph) The first class WindObserver has the impressive performance of the WindObserverII but has been enhanced to measure wind speed and direction to wind speeds of 75 m/s (168 mph). This proves essential in applications involving tornados and tropical storms, in land based and offshore applications. The small opposing transducers provide maximum possible directional ultrasonic signals (used to provide wind data) whilst ensuring the minimum of wind distortion. This first class wind speed and direction sensor has been proven in many applications worldwide and complements the range of wind speed and direction (anemometer) products from Gill. HIGH SPEED WINDOBSERVER

	IS WindObserver EEx ia IIC T5 An Intrinsically Safe WindObserver is available, complying with the ATEX directive, designed for offshore oil platforms and petrochemical plants. Additional features include extended wind speed range to 75 metres per second. IS WINDOBSERVER

	Naval WindObserver Gill has developed a Naval version of the WindObserver wind sensor for AGI based in Poole in Dorset, UK. The instrument was developed to meet the demanding environment on board surface warships. The anemometer forms an integrated part of naval wind measurement systems, and is installed as part of the MORIAH wind system for the US Navy and similar integrated systems for other nation's Naval forces worldwide. NAVAL WINDOBSERVER - as part of MORIAH

3 axis wind speed and direction sensors The Solent three axis anemometer range are robust instruments essential for understanding turbulent flows, surface energy balance and scalar fluxes using ultrasonically derived wind and speed of sound data. As these research areas rely on precise measurements of mean variance in wind velocity and SOS derived temperature (particularly when determining scalar fluxes using eddy covariance), Gill employs optimum mechanical configuration and electronic processing, thus ensuring minimum flow distortion and transducer shadow effects.
3-Axis instruments up to 32Hz
	WindMaster / WindMaster Pro The new WindMaster range is ideal for measuring turbulence on bridges, buildings, wind turbines, ventilation control systems and meteorological and flux measurement sites. Digital outputs for U,V, and W vectors are available on both units as are outputs for Speed of Sound and Sonic Temperature. The WindMaster>, constructed from aluminium and carbon fibre, is available with data outputs of either up to 20Hz (standard) or 32 Hz (optional). Analogue inputs and outputs with either 12 or 14 bit resolution are optional. The WindMaster Pro, constructed from stainless steel, has a max wind speed of 65 m/s and a fast data output rate of up to 32Hz. Improved vertical (W) resolution and SOS accuracy with less distortion due to wind loading means this instrument is ideal where three axis data is required. Analogue inputs (plus a PRT) and outputs in 14 bit resolution are optional.

3-Axis instruments over 32Hz
	RS & HS Range The Solent R3 and HS Research Range have been designed for researchers who need to determine fluxes using eddy covariance. The range provides U,V,W and SOS (sonic temperature) outputs, which may be logged using the free Gill WindCom software. All units are served with common electronics and software. Power supply and analogue outputs are provided via accessories including cables and the Power and Communications Interface (PCIA). Analogue inputs are standard on HS units and optional on R3 units via the Sensor Input Unit (SIU). R3-50 Symmetric head, 50Hz output rate R3-100 Symmetric head, 100Hz output rate R3A-100 Asymmetric head, 100Hz output rate

Horizontal Mounts
	HS Range - Horizontal head The horizontal head configurations allows more accurate assessment of vertical (W) and directional flows, with minimum interruption from the anemometer geometry and can easily be positioned close to the ground or at crop and tree level canopies for accurate measurement of SOS derived surface temperature. Inclinometer and analogue sensor inputs are supplied as standard in HS configurations. HS-50 Horizontal head, 50Hz output rate HS-100 Horizontal head, 100Hz output rate

Related Products Weather Station
	MetPak MetPak combines essential weather measurements into one instrument. Wind speed and direction using the proven WindSonic two-axis technology and temperature and humidity using industry standard probes. Easy pole installation with SDI-12 or analogue output configurations. MetPak is the cost effective solution for compact weather stations.

Wind Displays
	Wind Displays Compatible with WindSonic and WindObserver, displaying wind speed and direction using highly visible LED technology. Available in standard or marine format, 110 or 240 V ac operation, with RS422 or NMEA inputs.