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GENERAL INFORMATION
The A.C.A. Allertor 125 is a powerful, rotating, directional
siren with a unified design that is both compact and
weatherproof. The output of 126 decibels at 100 feet is
radiated to an effective 70 DB range of 4500 feet, thus giving
a total circular coverage of 2.2 square miles per siren. (Federal
CD Guide, March 1964.)
The single 10 HP motor produces the sound through direct
drive rotor-stator design and also rotates the entire assembly at
3.5 RPM through a direct drive worm and spur gear
combination.
Model CD1-103 Size B is a two-signal siren
Model CD-107 Size 3B3 produces two or three signals
The standardized signals are as follows:
1 - ALERT, a dual tone sustained tone scale signal
2 - ATTACK - TAKE COVER, a dual tone wailing slowly
up and down tone scale signal
3A - FIRE, a dual tone wail of different timing than the
attack signal
3B - FIRE, a dual tone yelp or rapid down tone scale signal
with a pause between each tone blast.
All signals are precisely controlled by a solid state integrated
circuit master control device or a radio decoder-timer.
When specified, the electrical controls associated directly with
the siren are prewired and contained inside a weatherproof
metal enclosure, which may be mounted in any convenient
location. Electrical installation is simple and straightforward.
A variety of signal sources may be employed to initiate
operation of a siren or siren system including -
1 - Direct mechanical switch
2 - Telephone relay system
3 - Radio relay system
4 - Program timer
5 - Any combination of the above
SPECIFICATIONS
Weight:
Allertor 125 (2 signal).………….……………….425 lbs.
Allertor 125 (3 signal)………………..……….…450 lbs.
Dimensions:
Overall assembly……………………7 ft. long, 3 ft. wide,
5 ft. high
ACOUSTICAL DATA
Output level………………………………126 DB at 100 feet
Output frequencies:
Standard dual tone…………………………523/698 hertz
Special single tone………………………………465 hertz
Special single tone………………………………698 hertz
Output cutoff (resonant) frequency…………………..80 hertz
Sound dispersal beam……………………10' above horizontal
15' below horizontal
30' wide horizontally
MOTOR DATA
For compression-
Modulation……………………10 hp, 3 phase, ball bearing,
Semi-enclosed, induction
motor. High torque. Direct
coupled to rotor and gear
reducer. Single phase
available as special.
Air compression..…Direct drive back curved fin impeller.
Electrical
Requirements………………...230 volt, 3 phase - 31 amp.
460 volt, 3 phase - 15.5 amp.
208 volt, 3 phase - 36 amp.
240 volt, 1 phase - 60 amp.
ROTATION
Drive…………………..Direct drive through a worm gear
box, coupled through a torque-
limiting device.
Speed………………………………………………3.5 RPM
ITEMS FURNISHED
Wood crated siren assembly with horn detached.
When specified, pre-assembled and wired control panel
cabinet with telephone relay or radio.
When specified, pole mount, roof mount or parapet mount.
ITEMS REQUIRED FOR INSTALLATION
Suitable mount (pole, platform, etc.) if not ordered with siren.
Electrical conduit and wire for interconnecting to control
cabinet and power source.
STORAGE
The unit is weather resistant as shipped and may be stored either
indoors or outdoors provided there is no danger of submergence in
water or other damaging fluids, or subject to possibility of vandalism.
