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Federal Signal 252 Instrucciones De Instalación Y Operación página 3

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B.
Specifications.
Operating Voltage
Operating Current
Sound Output Level*
Temperature Range
Dimensions Overall
Net Weight
Housing
* Equal on and off intervals with approximately 60 cycles per minute.
C.
Installation.
This alarm is designed to concentrate its audible alarm in the target hazard
area. For proper warning signal coverage, the alarm should be mounted ap-
proximately 4 ft. above ground level with the unit's sound ports facing the
target hazard area. There should be no obstructions around or blocking the
sound ports of the unit.
Do not mount the alarm with the sound ports facing upwards where it can
become buried, submerged or clogged with mud, water and other debris. A
clogged alarm will be rendered ineffective and will produce little or no sound
output. Always be sure that the alarm's sound ports are facing the area you
are trying to warn, the ports are not clogged and that the alarm is functioning
properly before using the vehicle.
1.
Select a mounting location at the rear of the vehicle that will provide protec-
tion from impact and adverse weather conditions while allowing unobstructed sound
projection to the target hazard area.
The alarm's "L-type" mounting configuration provides mounting flexibility and
allows installation in a variety of locations. Ensure that the sound openings are posi-
tioned to allow unobstructed sound projection to the target hazard area.
Before drilling holes in ANY part of a vehicle, be sure that both sides of the
mounting surface are clear of parts that could be damaged; such as brake
lines, fuel lines, electrical wiring or other vital parts.
2.
See figure 1. Using the alarm's housing as a template, scribe two drill posi-
tion marks through the holes in the mounting flanges (one on each side of the housing).
Drill 21/64" holes at the position marks.
3.
Secure the unit on the vehicle with user-supplied 5/16" bolts and locknuts or
user-supplied 5/16" bolts, lockwashers, and nuts.
12VDC to 48VDC
0.20 A
97dBA (±4dB) @ 4 ft.
-40° C to +75° C
2-5/8" x 4" x 1-5/8"
(66.68 mm x 101.6 mm x 41.28 mm)
9 oz.
Steam Cleanable, Weatherproof Plastic
-2-

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