GILL PROPELLER ANEMOMETER MODEL 27106 R.M. YOUNG COMPANY 2801 AERO PARK DRIVE, TRAVERSE CITY, MICHIGAN 49686, USA TEL: (231) 946-3980 FAX: (231) 946-4772 WEB: www.youngusa.
INTRODUCTION MODEL 27106 GILL PROPELLER ANEMOMETER The Gill Propeller Anemometer is a low threshold precision air velocity sensor employing a fast response helicoid propeller. The instrument uses a high quality tech-generator transducer which converts propeller rotation to a DC voltage that is linearly proportional to air velocity. The output signal is suitable for a wide range of signal translators and data logging devices.
CALIBRATION Calibration is determined by propeller pitch and the output characteristics of the tach-generator. Both Model 08274 Expanded Polystyrene Propeller and Model 08254 Carbon Fiber Thermoplastic Propeller have a 29.4 cm/rev pitch. This is equivalent to 0.0049 m/s per rpm and is accurate to ±1%. Zero offset is insignificant. Formulas for other units of measurement appear on the calibration chart included with this manual. The tach-generator output is set at the factory for 500 ±2 mV at 1800 rpm.
ADDITIONAL REFERENCES WARRANTY References containing additional information about the Gill Propeller Anemometer are listed below in chronological order: This product is warranted to be free of defects in materials and construction for a period of 12 months from date of initial purchase. Liability is limited to repair or replacement of defective item. A copy of the warranty policy may be obtained from R. M. Young Company. Holmes, R. M., Gill, G. C., and Carson, H. W.
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