The Use of a Well Designed Emergency Siren
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A well designed emergency siren can prove to be extremely useful for an emergency vehicle which needs to send cautionary signals, warning messages as well as alerting signs to other vehicles on the road. The sirens can really complement emergency lights in that they help to attract attention of even those motorists too far away to see the emergency lights. Besides, the frequency of the sirens can be used as a very effective way to convey the distress or the severity of the emergency persuading others around to act accordingly. A well designed siren is not only easy to operate but also provides an array of intuitive functions which give you more options when faced with a crisis.
There are both hand held as well as surface mounted mechanical sirens depending upon whether it is used by emergency vehicles or rescue personnel. The surface mounted emergency siren comes with several useful mounting options such as L shaped brackets, some of which are particularly customised for some vehicles. Good quality sirens come with a smooth, rubberized face. Sirens mostly made of heavy impact resistant plastic are weather and vibration resistant. They can be mounted both inside and outside the vehicle depending upon what the personnel deems fit. Lighted push buttons are used in high performance sirens to indicate useful functions. A variety of functions are built into modern sirens and it should be easy to make the most of them when required.
An emergency siren usually offers exciting features such as hands free control, Scan Lock tone selection mechanism, public address system and radio announcement. Some sirens also come with a series of knobs for PA volume control and varying the frequency of the tone. The pitch of the tone can determine the penetration in some cases. Some sirens can even provide the option of remote control which is extremely useful in case of limited personnel. The most common siren tones include wail, phaser, piercer, yelp, Hi-Lo, air horn and mechanical tone. The mechanical tones are deep and gutsy and can prove really useful in clearing out traffic for a speeding emergency vehicle such as an ambulance. There are compact, car-alarm types of sirens as well. The siren usually consists of the driver unit and the speaker unit.
High performance emergency siren comes with 100 watt speaker amplifier combination. The power supply has 4 to 6 outlets each rated with a specific output and input that has to be double checked well before usage. Horn ring cycler features help in remotely controlling the sirens through external switching. There are special sensors in some sirens which help in diagnosis of the equipment. For example, unique LED indicators can show if there has been any short circuiting or excess voltage issue in a malfunctioning siren. Dip switch programming is another integral part of a mechanical siren. Most sirens are less than 2 inches in height and are about 6 inches long and wide. They are easy to handle and come with no hassle warranty of up to 5 years.
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Article Source: Articlelogy.com
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