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Home>Intrinsic Safety Equipments>Alarms>Section Alarm 1000
SA 1000
 Parameters: Movable area alarm for use in hazardous places.
Technology: Solid state; visual/audio.
Developed for hazardous areas of coal mines for alerting workers of possible
hazardous conditions (fires, explosive/toxic fumes, etc.), the SA-501™
is small and portable, yet effective and safe. Ideal for mines or plant areas
where space is confined. All solid state; MSHA classified intrinsically safe
when powered through proper barriers.
The SA-501B, has two separate outputs: 1) a visual "warning" and 2) a
strident sonic "alarm", each independently controlled. Super bright LEDs
flash (2-Hz) red for maximum attention. The horn "alarm" adds a raucous,
pulsating blast several times a second. Designed for the maximum human hearing
sensitive of 2900 Hz the 95 dBA @ 24" sound pressure provides a sonic signal
audible at long distances, even in ambient noise.
The SA-501B operates from 8-30VDC, drawing about 40ma for each channel.
A terminal strip provides easy connections using two cables each
having 2-conductors
that are shielded or one cable with two pairs each
pair seperately shielded. Power is supplied and controlled ON/OFF
from an external user source.
The SA-501B measures 6Wx14Hx4.5D inches (152x356x114mm) and weighs 6
pounds (3.3kg). Circuits are solid state and encapsulated for protection
against
moisture and dust. Very little maintenance is required.
This unique product has proven reliable, even in the rigors of
underground coal
mining - providing economical, effective alarming, which
is convenient for advancing work crews. Powered by a single cable
(described above), a hook can be added to hang the alarm in a convenient place.
| Item |
Model |
Code |
| Standard unit, with cord grip |
SA-501B |
7.8202 |
| Add steel protective cage for strobe unit |
SA-CAGE |
7.8203 |
US/MSHA evaluations G, H, J, K and L cover use in hazardous methane areas when
powered through approved barriers. MSHA permits multiple SA-501B units to be
connected on a single cable, ideal for spacing at intervals for maximum
effectivity in a noisy industrial situation. Barriers can be supplied. Call
for more information
or to order.
SA-501 is a Rel-Tek trademark.
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