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Page 2: ...CROSS ARM WAC151 Technical Reference WAC151 T648en 1 1 25 September 1996 Vaisala 1996...
Page 3: ...y form or by any means electronic or mechanical including photocopying nor may its contents be communicated to a third party without prior written permission of the copyright holder The contents of in...
Page 4: ...Cross Arm WAC151 WAC151 T648en 1 1 Technical Reference 1996 09 25 i Contents 1 INTRODUCTION 1 2 INSTALLATION 2 3 TECHNICAL DATA 3 4 APPENDICES DRAWINGS 4...
Page 5: ...Cross Arm WAC151 Technical Reference WAC151 T648en 1 1 ii 1996 09 25 This page intentionally left blank...
Page 6: ...able glands offering easy way for earthing different cables Typically three cable glands are in use two for sensor cables one for signal cables To ensure accurate wind speed measurement in extreme win...
Page 7: ...cables through the cable glands s For better protection against RF interference follow the earthing instructions of the cable shield in drawing WA35095 3 Do the wiring to the screw terminal block acco...
Page 8: ...m supports the WAA151 WAA251 and WAV151 sensors Material Cross Arm Al anodized Junction Box Al painted Weight 1 5 kg without sensors Electrical connections Cable entries Line cable entry through a gla...
Page 9: ...ence WAC151 T648en 1 1 4 1996 09 25 4 APPENDICES DRAWINGS WA35095 WAC151 Cross Arm Assembly ZZ45037 Sensor Wind Vane Cable Assembly ZZ45036 Sensor Anemometer Cable Assembly WA35172 WAT11 Wind Sensor C...
