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SD-283ST - The optical smoke detector

SD-283ST - The optical smoke detector

SD-283ST - The optical smoke detector
On request

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Detector is used to detect fire hazards in the interior of residential or commercial buildings. The product is not designed to be installed in industrial premises

Optical smoke detector, relay output, connectable to binary input, powered from 12Vdc (is not included). The SD280 detector combines an optical smoke sensor with a heat sensor. Both sensors have their outgoing signals processed digitally, resulting in higher false alarm immunity. The detector indicates fire hazard using the built-in LED indicator and acoustic signalling. When the detector is used with inserted batteries (3x 1.5 V AA, batteries are not included), it can continue operating as a stand-alone detector when the external 12 V power supply is disconnected.

The SD-283ST consists of two independent detectors – an optical smoke detector and a heat detector. The optical smoke detector works on the principle of scattered light. It is very sensitive to large dust particles which are present in dense smoke. It is less sensitive to smaller particles generated by the combustion of liquids such as alcohol. That is why the fire detector also contains a built-in heat detector which has a slower reaction but is much better at detecting fire which generates only a small amount of smoke.

Technické parametry

Product typeSD-283ST
Power  9 – 15 V DC / 3.5 mA (150 mA during an alarm) or 3 pcs of AA 1.5 V alkaline batteries (batteries are not included) 
Smoke detector sensitivity
m = 0.11 - 0.13 dB / m pursuant to EN 14604:2005, EN 54-7
Smoke detection
optical light scattering
Heat detection
class A1 according to EN 54-5
Alarm temperature
60 °C to +65 °C
Operating temperature range
-10 °C to +65 °C
Dimensions
diameter 126 mm, height 52 mm
Weight
150 g
Conformity EN 50130-4, EN 55022

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.


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SENSIT s.r.o.

Školní 2610, 756 61 Rožnov pod Radhoštěm


+420 571 625 571

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