- Responds well to slow-burning, smouldering fires
- Well-suited to bedrooms and escape routes
- Unaffected by wind or atmospheric pressure
- Flashing LED and magnet operated test switch options
- Uses light sensing technology
The Apollo Series 65 Optical Smoke Detector uses light sensing technology to detect smoke entering its detection chamber.
It is housed in a moulded, self-extinguishing white polycarbonate enclosure with wind-resistant smoke inlets. The sensing chambers design prevents penetration of ambient light and has an insect resistant cover.
In the detection chamber, an infrared LED is positioned at an obtuse angle to a photo-diode. The LED emits a burst of collimated light that, under normal conditions, does not reach the diode. When smoke enters the chamber, the light from the LED is scattered onto the photo-diode. When this happens, the detector verifies the alarm by emitting two more bursts of light. If the light is still scattered, an alarm is triggered.
An external LED turns red when the detector is in an alarm state.
|Sensor configuration||Horizontal optical bench housing infra-red emitter and sensor, arranged radially to detect forward scattered light.|
|Materials terminals||Nickel plated stainless steel|
|Power-up surge current||0.115mA|
|Supply voltage (Vmin-Vmax)||9 to 33V dc|
|Alarm load||420Ω in series with 2V drop|
|Humidity||0% to 95% (no condensation or icing)|
|Operating temperature||-20 to 60°C|
|Storage temperature||-30 to 80°C|
Contact us to receive competitive trade discounts or apply online for a credit account.