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NSC Sicherheitstechnik B02704-00 Discovery Optical/Heat Multi Sensor Detector
The Discovery Multisensor by NSC Sicherheitstechnik is similar in construction to the optical detector. However, the key difference is that it used a different lid and optical mouldings
to accommodate the thermistor (heat
The Discovery Optical/Heat multisensor
detector contains an optical smoke sensor
and a thermistor temperature sensor whose
outputs are combined to give the final
analogue value. The way in which the
signals from the two sensors are combined
depends on the response mode selected.
The five modes provide response behaviour
which incorporates pure heat detection,
pure smoke detection and a combination
of both. The multisensor is therefore useful
over the widest range of applications.
The signals from the optical smoke
sensing element and the temperature
sensor are independent, and represent
the smoke level and the air temperature
respectively in the vicinity of the detector.
The detector’s micro-controller processes
the two signals according to the mode
selected. When the detector is operating
as a multisensor (i.e. modes 1, 3 and
4) the temperature signal processing
extracts only rate-of-rise information for
combination with the optical signal. In
these modes the detector will not respond
to a slow temperature increase – even
if the temperature reaches a high level.
A large sudden change in temperature
can, however, cause an alarm without
the presence of smoke, if sustained for
Apollo part number 58000-700
Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.
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