Klaxon GP10 User's Manual
Contents
1. f Bu j pe 75 90 255 e ed 210 195 180 a 165 105 van GP6 Siren GP10 Siren2. On GP6 GP10 and GP12 Sirens INSTALLATION AND MAINTENANCE 1 Installation a Fix siren to a firm level base at a minimum height of 3m above the ground and free of side or top obstructions For best all round sound propagation mount the unit at a height of 4 5 to 6m with 50m clear radius all round Figure 1 overleaf shows a polar plot of the sound output from the sirens in free Space Please note that the propagation of sound in air is affected by the following factors which must be accounted for when calculating the coverage of the siren Variations of the propagation speed in the air Attenuation of the sound during propagation Wind and turbulence of the atmosphere Obstacles placed in the vicinity of siren and listener Ambient noise levels The plot assumes ideal free field conditions The following losses must be taken into account during commissioning e Sound attenuation loss over distance in free field conditions without obstructions Distance in Metres 1 30 100 200 500 1000 2000 GP6 135 105 95 89 81 75 69 Audibility dB A GP10 140 110 100 94 86 80 74 GP12 145 115 105 99 91 85 79 e Attenuation in decibels per kilometre due to absorption of sound in air 10 C 90 RH At 500 Hz frequency the attenuation is 1 6 dB A kilometre e Absorption due to fog in decibels per kilometre At 500 Hz frequency the attenuation is 1 0 dB A kil
3. ometre The two figures provided for sound absorption in clear air and fog are sound losses in addition to the typical sound losses experienced over distance indicated in the table above This equipment should only be connected to the supply voltage marked on the rating plate WARNING The equipment should be protected from access by persons animals or foreign bodies to avoid injury to persons or damage to equipment affecting safe use WARNING This equipment contains rotating parts Please ensure that the retaining straps on the rotor are left in place until the installation is complete and the equipment is ready to be tested for the first time WARNING Keep well clear of the siren when in operation Extremely high noise levels are produced Unprotected exposure could lead to permanent hearing damage Ensure appropriate hearing protection is used when working in close proximity to siren Maintenance a The siren should be periodically tested for correct function Typically this could be quarterly or half yearly Motor bearings are sealed and rated for a life of 25 000 hours No maintenance is required Contacting Klaxon Klaxon Signals Ltd Wrigley St Oldham England OL4 1HW Technical Helpline 44 0 161 287 4029 Sales Hotline 44 0 161 287 5555 Fax E mail sales klaxonsignals com Web www klaxonsignals com 44 0 161 287 5511 18 185845 4 n N l 300 285 a 145 an a 15 30
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