Klaxon CS8 Siren Test, High-Low and All Clear

This is the weekly test of a Klaxon CS8 siren, sounding High-Low followed by the All Clear. The siren is located near Ascot, England. More details below.



This siren is part of a network of thirteen sirens used to warn of escape from Broadmoor Hospital, an asylum for the criminally insane (or, to be politically correct, a high-security psychiatric hospital). The most recent escape from Broadmoor was in 1991. The system is tested every Monday at 10:00.


The siren is a CS8, manufactured by Klaxon Signals. It is equipped with solenoid operated Coded Shutters to produce a variety of signals (which is why it is called the CS), and works in a similar way to a horizontal Federal Signal 3T22 without horns. It is activated via telephone line. I do not know what type of controller it uses. I believe that these sirens are heated to prevent icing in winter.


The specifications of the CS8 are below.

Physical
Construction: Cast aluminium
Weight: 122kg
Ports: 10/12

Motor
Voltage: 400V 3 phase
Current: 6A
Motor Power: 3kW
Rating: 15 minutes

Sound
Frequency: 470/560Hz
Tones: 4+
Audibility at 1m: 139dB
Audibility at 30m: 109dB

Siren Description from Klaxon Signals:
"CS8 is a double-ended weatherproof siren for horizontal mounting. Dual frequency signal. For prevention of ice formation, de-icing heaters are an optional extra to be used with a separately mounted weatherproof thermostat. Solenoid operated shutter mechanisms can be fitted (at extra cost) to provide clearly defined and characteristic signals in conjunction with a programmed controller. IP 55 protection."

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I have decided to re-uploaded this video with a watermark due to the high number of deliberate copyright infringements taking place recently. The comments from the original upload can be found here: http://thesirenemporium.proboards.com...

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This video, including its soundtrack and images, is Copyright © FederalSystem7000 2010. Do not use without full permission.

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