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ORBIS optical smoke detector
ORBIS optical smoke detector

ORBIS optical smoke detector

The ORBIS optical smoke detector is a conventional smoke detector composed of a white, fire retardant polycarbonate housing.

The ORBIS optical smoke detector operates on the light scatter principle. The remarkable optical design of the ORBIS optical smoke detector allows it to respond to a wide spectrum of fires. In the design and the corresponding "TimeSaver" base, ease of installation and reliability in operation are the main considerations.

The sensing chamber of the ORBIS optical smoke detector contains an optical sensor which measures back-scattered light as well as the more usual forward-scattered light. Sensitivity to black smoke is greatly improved. The stability of the detector - high reliability, low false alarm rate - is further increased by the use of algorithms to decide when the detector should change to the alarm state. 

The most important features of the ORBIS optical smoke detector are:

  • responds well to slow burning, smouldering fires
  • good performance in both black and white smoke
  • the TimeSaver base is designed for fast installation and allows the cabling to be checked without the presence of a detector
  • built-in algorithms filter out momentary, abnormal signals and reduce false alarms
  • automatic drift compensation with DirtAlert, a yellow flashing LED, for easy identification of dirty detectors
  • during commissioning, StartUP signals the correct connection and operation of the detector by means of a red flashing LED
  • SensAlert, a yellow flashing LED indicates faulty operation of the detector
  • Fas Test only takes four seconds to test and confirm that the detector is functioning correctly and reduces maintenance time
  • the DustDefy system prevents the ingress of dust while maintaining airflow

Technical details

Description ORBIS optical smoke detector
Code 065320
Apollo Part No ORB-OP-12001-APO
Code ORBIS detector base 065300: ORBIS detector base - Apollo Part No: ORB-MB-00001-APO
Certificate of Constancy of Performance 2531-CPR-CSP10968 - EN54-7:2000/A1:2002/A2:2006
Materials Housing: white polycarbonate - Terminals: stainless steel
Dimensions (Ø x H) 97x31mm
Weight 75 g
Detection principle Light scatter principle
Supply voltage 8.5 - 33Vdc
Quiescent current 95µA
Alarm current 20mA@12Vdc - 40mA@24Vdc
Alarm resistor 600Ω
Alarm reset time 1 second
Alarm indicator Integral indicator with 360° visibility
Remote indicator External 1K2 series resistor via LED to 27Vdc
IP rating IP44
Operating temperature -40°C to +70°C
Humdity 0% to 98% (no condensation or icing)
Wind speed Insensitive to wind
Supply wiring Two wire supply - polarity sensitive