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Addressable Smoke Detector 58000-550IMC | CONTEXT PLUS


The Context Plus XP95 ionisation smoke detector has a moulded selfextinguishing white polycarbonate case with wind resistant smoke inlets. Stainless steel wiper contacts connect the detector to the terminals in the mounting base. Inside the detector case is a printed circuit board that has the ionisation chamber mounted on one side and the address capture, signal processing and communications electronics on the other.



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Specifications are typical and given at 23°C & 50% relative humidity unless stated.
Communication protocol: Apollo XP95 pulse 5-9V
Detector Type: Products of combustion (smoke)
Detection Principle: Ionisation Chamber
Chamber Configuration: Twin compensating chambers using one single sided ionising radiation source
Radioactive Isotope: Americium 241
Activity: 33.3k Becquerels, 0.9µCurie
Sampling Frequency: Continuous Supply Wiring: Two wire supply, polarity insensitive
Terminal Functions: L1&L2 supply
Supply Voltage: 17 to 28 Volts dc
Modulation Voltage at Detector: 5 to 9 Volts peak to peak.
Quiescent Current: 280µA average, 500µA peak
Power-up Surge Current: 1mA Duration of Power-up Surge Current: 0.3 seconds
Maximum Power-up Time: 4 seconds for communications
Storage Temp: -30°C to +80°C
Operating Temp: -20°C to +70°C
Clean Air Analogue Value: 25±7 counts
Alarm Level 55 Counts: EN54 y value of 0.7
Alarm Indicator: Red light emitting diode (LED)
Alarm LED Current: 2mA
Remote LED Current: 4mA at 5V (measured across remote load)
Type Code: (210 43) 011 00
Sensitivity: Nominal threshold y value of 0.7 to EN54 Pt 7 2001; (BS 5445 Pt 7 2001)
Guaranteed Temperature Range (no condensation or icing): -20°C to +60°C
Humidity (No condensation or icing): 0% to 95% relative humidity
Wind Speed: 10m/s maximum
Atmospheric Pressure: Automatic compensation by dual chambers to maintain sensitivity up to a height of 2000m above sea level Vibration,
Impact & Shock: To EN54 Pt 7 1984 (BS5445 Pt 7 2001)
IP Rating: 23D
Dimensions: (diameter x height)
Detector: 100mm x 42mm
Detector in Base: 100mm x 50mm
Weights: Detector: 105g;
Detector in Base: 161g
Materials: Detector
Housing: White polycarbonate V-0 rated to UL 94;
Terminals: Stainless Steel The Context Plus ionisation detector, like all ionisation detectors, has some sensitivity to air movement (wind). The extent to which the analogue value will change depends on the wind speed and on the orientation of the detector relative to the wind direction. Relatively small changes in wind direction can cause significant changes in analogue value.


Context Plus Full Catalog

Context Plus Full Catalog

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