The NBS series of conventional sounders are designed
for use either underneath detector bases or as a standalone
low profile sounder.
These sounders have been designed with an emphasis
on acoustic efficiency resulting in an omnidirectional,
high volume sound field. These high output levels are
achieved with a low current draw. The integral
electronics provide the user with a choice of either
continuous or sweeping tones at a variety of
frequencies. The NBS sounders are available in a choice
two colours red or white and supplied with either 3 or
14 pre-configured sounder patterns/tones.
The sounder can be used under any detector base with
60mm mounting centres and an external diameter of up
to 102mm. Alternatively, it can be wall mounted as a
stand-alone unit.
The NBS sounders can be integrated onto systems using
other sounders from the Morley-IAS portfolio or other
compatible systems.
• Ceiling mounting base sounder
• 78 - 93dBA at 1 metre @ 24Vdc
• Internal volume control
• Rugged construction, IP44 rated
• Easy cable entry & exit
• Designed to meet EN54: part 3
• CE marked
mechanical
Material ABS
Flammability UL94-HB
Colour Red or White
Dimensions 30 x 117 (H x dia) mm
including cover plate
Operating temperature -30°C to + 70°C
Maximum humidity 93% @ 40°C
Ingress protection IP44
electrical
Operating voltage 9-33Vdc
Current consumption 9.0mA @ 12Vdc
18mA @ 24Vdc
Output (dB) 78 - 93dB(A) adjustable
@24Vdc
87dB @1m(800Hz, 12Vdc)
93dB @1m (800Hz, 24Vdc)
Number of tones NBS3 - 3 tones
NBS14 - 14 tones