Smoke Detectors

If waking up to a smoke alarm is your first line of defence against a potential fire hazard then you shouldn’t hesitate to install one. Smoke detectors save thousands of lives each year and it’s recommended that every home or building have one detector in each room on every floor.


Optical Smoke Detectors

Photoelectric detection Never miss the warning for a potential fire hazard! Let optical technology be your first choice for identifying smoke.



What is Optical smoke detection?

An optical smoke detector also known as a photoelectric alarm is a light sensor. The optical smoke detector uses a photodiode (sensor) and an infrared LED to detect smoke inside an optical chamber. The sensor is placed across the infrared LED to an angle so that the LED beam does not point directly at the photodiode. When smoke enters the chamber the LED beam reflects off small particles of smoke and directs it to the sensor thus triggering the alarm.


Benefits:

Photoelectric smoke detection is generally more responsive to fires that begin with a long period of smouldering (the beginning stage of fires) but may respond a bit slower to rapidly growing fires yet they are well balanced to spot both the smouldering and flaming stages of fires.


Installation:

Make sure the detector is functioning properly before installing it. The detector should be placed as close as possible to the centre of the ceiling. If ceiling mounting is not possible then the detector can be wall mounted 30 cm from the ceiling.



Optical Smoke Detectors Products

Series 65 Optical Smoke Detector
Image of Series 65 Optical Smoke Detector

Series 65 Optical Smoke Detector

The Series 65 optical smoke detectors are mainly used in environments such as offices, small buildings or restaurants where an electric power cable or fire security system is present or capable of being installed.

Main Features

  • Wide operating voltage
  • Can be integrated into security systems
  • Flashing LED option
  • Range of bases available

Where can it be used?

The Series 65 optical smoke detectors are mainly used in environments such as offices, medium sized buildings, large homes or restaurants where an electric power cable or fire security system is present or capable of being installed. Consider using a photoelectric alarm (not ionization) near areas that are prone to steam or cooking


Orbis Optical Smoke Detector
Image of Orbis Optical Smoke Detector

Orbis Optical Smoke Detector

The Orbis range of detectors where created to speed up installation. They have a feature that consists of a flashing LED to confirm that the device is wired correctly. Orbis optical detectors utilizes a new optical smoke detection system that reduces the possibility of false alarms. Built in software can maintain sensitivity of the sensor at a constant level without the interference of dust or chamber contamination.

Main Features

  • Flashing red LED confirms correct wiring polarity
  • Continuity Link for voltage testing
  • Wide Angle Optics for wide range of fires
  • Prevents dusts build up and maintains airflow
  • Drift compensation for maintained sensitivity
  • Flashing yellow LED for drift compensation limit
  • Flashing yellow LED for incorrect detector operation
  • Takes four seconds to test correct functionality
  • Base sliding action for positioning
  • 360 degree LED visibility
  • Range of bases available

Discovery Optical Smoke Detector
Image of Discovery Optical Smoke Detector

Discovery Optical Smoke Detector

The Discovery optical smoke detectors are mainly used to warn for slow burning or smouldering fires and has sensitivity modes for the best suited applications.

Main Features

  • Sensitivity modes for suited environments
  • Five response modes
  • Remote test feature
  • Unaffected by wind or atmospheric pressure
  • XPERT card addressing method for identifying detector locations for quicker installations and commissioning

Where can it be used?

Discovery optical smoke detectors are can be used in environments such as bedrooms, offices, medium sized buildings, large homes or restaurants where an electric power cable or fire security system is present or capable of being installed. Consider using a photoelectric alarm (not ionization) near areas that are prone to steam or cooking.


XP95 Optical Smoke Detector
Image of XP95 Optical Smoke Detector

XP95 Optical Smoke Detector

The XP95 optical smoke detectors can be used in environments such as offices, medium sized buildings, large homes or restaurants where an electric power cable or fire security system is present or capable of being installed.

Main Features

  • Emits a red light when the detector sounds the alarm
  • XPERT card addressing method for identifying detector locations for quicker installations and commissioning
  • Quick and easy installation with its slide easy base






Ionisation Smoke Detectors

An ingenious scientific method of smoke detection is utilized by the ionisation detectors. Their technology is not just interesting but also effective for reliable warnings.



How do Ionisation smoke detectors work?

Ionization is the condition of an element being disconnected into ions. An ionisation smoke detector consists of an ionization chamber which is connected to a negative terminal and a reference chamber which is connected to the positive terminal. The smoke detector uses a radioactive isotope such as americium-241 in the ionisation chamber to produce ionization known as alpha particles into the air. These alpha particles collide with air molecules and cause them to split into two halves - a positive ion and a negative ion. The positive ions get attracted to the negative chamber and the negative ions to the positive chamber thus creating an electric current in the air between the two chambers. If smoke particles pass between the chambers the ions will attach to the particles causing the current to flow difficultly. When the electric circuit detects the drop in current the alarm will be triggered.


Benefits:

Ionization detectors are more sensitive and respond better to the flaming stage of fires.

Installation:

Make sure the detector is functioning properly before installing it. The detector should be placed as close as possible to the centre of the ceiling. If ceiling mounting is not possible then the detector can be wall mounted 30 cm from the ceiling.



Ionisation Smoke Detectors Products

Series 65 Ionisation Smoke Detector
Image of Series 65 Ionisation Smoke Detector

Series 65 Ionisation Smoke Detector

The Series 65 optical smoke detectors are mainly used in environments such as offices or buildings where an electric power cable is present or capable of being installed.

Main Features

  • Wide operating voltage
  • Can be integrated into security systems
  • Flashing LED and magnet operated test switch option
  • Range of bases available

Ionization is the condition of an element being disconnected into ions. An ionisation smoke detector consists of an ionization chamber which is connected to a negative terminal and a reference chamber which is connected to the positive terminal. The smoke detector uses a radioactive isotope such as americium-241 in the ionisation chamber to produce ionization known as alpha particles into the air. These alpha particles collide with air molecules and cause them to split into two halves - a positive ion and a negative ion. The positive ions get attracted to the negative chamber and the negative ions to the positive chamber thus creating an electric current in the air between the two chambers. If smoke particles pass between the chambers the ions will attach to the particles causing the current to flow difficultly. When the electric circuit detects the drop in current the alarm will be triggered.

How do Ionisation smoke detectors work?


XP95 Ionisation Smoke Detector
Image of XP95 Ionisation Smoke Detector

XP95 Ionisation Smoke Detector

The XP95 ionisation smoke detectors are mainly used in environments such as offices, medium sized buildings, large homes or restaurants where an electric power cable or fire security control system is present or capable of being installed. A voltage signal is generated by a drop in the current flow from the two chambers inside the detector due to smoke interfering with the electric current caused by ionisation. The XP95 uses an electric circuitry to convert the analogue voltage signal to an electric digital signal which is then sent to the control system for processing. The control system assesses the signal and compares it to the systems data. When the control system determines that a fire exists it instructs the detector to switch on its LEDs and initiates the pre-planned alarm routine.

Main Features

  • Wide angle optics
  • Minimal effects from the temperature, humidity, atmospheric pressure
  • Well protected against electromagnetic interference over a wide frequency range
  • Transient Rejection uses algorithms to filter out temporary abnormal readings, helping to reduce false alarms.
  • Drift Compensation maintains calibrated sensitivity levels even if the detector is contaminated
  • Flashing yellow LED to show that the drift compensation limit has been reached
  • Flashing yellow LED indicates in the unlikely event of incorrect detector operation
  • Slots allow base to be fixed in position without removing mounting screws
  • 360° Visibility of LEDs.
  • XPERT card addressing method for identifying detector locations for quicker installations and commissioning

Ionization is the condition of an element being disconnected into ions. An ionisation smoke detector consists of an ionization chamber which is connected to a negative terminal and a reference chamber which is connected to the positive terminal. The smoke detector uses a radioactive isotope such as americium-241 in the ionisation chamber to produce ionization known as alpha particles into the air. These alpha particles collide with air molecules and cause them to split into two halves - a positive ion and a negative ion. The positive ions get attracted to the negative chamber and the negative ions to the positive chamber thus creating an electric current in the air between the two chambers. If smoke particles pass between the chambers the ions will attach to the particles causing the current to flow difficultly. When the electric circuit detects the drop in current the alarm will be triggered.

How do Ionisation smoke detectors work?


Discovery Ionisation Smoke Detector
Image of Discovery Ionisation Smoke Detector

Discovery Ionisation Smoke Detector

Discovery ionisation smoke detectors are mainly used in environments such as offices, medium sized buildings, large homes or restaurants where an electric power cable or fire security control system is present or capable of being installed.

Main Features

  • Drift Compensation maintains calibrated sensitivity levels even if the detector is contaminated
  • One of five sensitivity modes selected at the control panel for detecting threats
  • XPERT card addressing method for identifying detector locations for quicker installations and commissioning

Ionization is the condition of an element being disconnected into ions. An ionisation smoke detector consists of an ionization chamber which is connected to a negative terminal and a reference chamber which is connected to the positive terminal. The smoke detector uses a radioactive isotope such as americium-241 in the ionisation chamber to produce ionization known as alpha particles into the air. These alpha particles collide with air molecules and cause them to split into two halves - a positive ion and a negative ion. The positive ions get attracted to the negative chamber and the negative ions to the positive chamber thus creating an electric current in the air between the two chambers. If smoke particles pass between the chambers the ions will attach to the particles causing the current to flow difficultly. When the electric circuit detects the drop in current the alarm will be triggered.

How do Ionisation smoke detectors work?