WN 1 Boundary layer microphone for measurements on wind power stations • standardized noise emission measurements on wind power stations • reduction of the wind noise at the microphone • weatherproof * Optional with weatherproof power supply WN 1 • measurement microphone powering with R LEMO � or IEPE in weatherproof case • line driver • adjustab

Product overview GF 1 and WN 1 The boundary layer and the weatherproof power supply unit are specifically developed extensions in order to record the sound emission of wind power stations with measuring microphones pursuant to DIN EN 61400-11. Due to the operation near the ground, unwanted influences of the measurement results by reflections of the ground are avoided. The low wind speed near the ground also has the effect of reducing the wind noise at the microphone. Acoustical specifications Together with the impregnated secondary windscreen, the primary windscreen of the GF 1 ensures a broadband...

Product overview Delivery The standard delivery of the GF 1 includes: Ground plate (demountable in three parts) Primary windscreen Secondary windscreen Suitcase 1100 x 510 x 405 mm The standard delivery of the WN 1 includes: Power supply Suitcase Accessories The optional accessories for the GF 1: Dehumidifier The optional accessories for the WN 1: Sound calibrator Connection cable 10 m Connection cable 10 m Connection cable drum 100 m Order.-Nr. 610039 Order.-Nr. 302201 Order.-Nr. 202221 Order.-Nr. 302244 Construction GF 1 Primary Windscreen Secondary Windscreen Ground Plate Microphone Capsule...

Technical specifications Boundary GF 1 Diameter ground plate Height of the ground plate (with feet) Diameter primary windscreen Diameter secondary windscreen Height of the boundary with windscreen Weight without suitcase (without measurement microphone element) Weight with suitcase (without measurement microphone element) Weatherproof power supply WN 1 Length Width Height Weight (without battery and sound calibrator) Microtech Gefell GmbH · Georg-Neumann-Platz · 07926 Gefell · Germany Phone +49 (0)36649 882-0 · Fax +49 (0)36649 882-11 · www.microtechgefell.de · [email protected]