Apollo 55000-317 | Series 65 Optical Smoke Detector | Conventional
£13.01 (inc VAT: £15.61)
Summary
The Apollo Series 65 Optical Smoke Detector (55000-317) uses advanced photo-electric light scatter technology to detect smoke particles entering its sensing chamber. This conventional detector features an infrared LED that pulses every three seconds, with light scattered by smoke particles detected by a silicon PIN photo-diode positioned at an obtuse angle within the chamber.
Designed for professional fire detection systems, this detector excels at identifying slow-burning, smouldering fires, making it particularly well-suited for installation in bedrooms and escape routes. The white flame-retardant polycarbonate housing includes a clear indicator LED that produces a red light in alarm conditions, with wind-resistant smoke inlets and an insect-resistant gauze cover protecting the optical chamber.
Operating on a two-wire polarity insensitive supply between 9V and 33V DC, the detector is compatible with most conventional fire alarm panels and maintains reliable performance across a wide temperature range from -20°C to +60°C, remaining unaffected by wind speed or atmospheric pressure variations.
Features
- Photo-electric detection using infrared LED and silicon PIN photo-diode
- Responds well to slow-burning, smouldering fires
- Ideal for bedrooms and escape routes
- Two-wire supply with polarity insensitive connections
- Wide operating voltage range of 9V to 33V DC
- Clear indicator LED producing red light in alarm
- Remote indicator output capability
- Low quiescent current of 30-50 µA at 24V
- Sampling frequency of once every three seconds
- Confirmation frequency of once every two seconds
- Unaffected by wind speed or atmospheric pressure
- Operating temperature range -20°C to +60°C
- White flame-retardant polycarbonate housing
- Wind-resistant smoke inlets with insect-resistant gauze
- Compact dimensions: 100mm diameter x 42mm height
- Lightweight design at 99g
- EN 54-7 certified
- Complies with EMC Directive 2014/30/EU
- Complies with Construction Products Regulation (EU) 305/2011
- Compatible with Series 65 detector bases
FAQs
What type of fires does the Series 65 Optical Smoke Detector respond to best?
The optical smoke detector responds particularly well to slow-burning, smouldering fires and glowing combustion. It provides very good response to overheating/thermal combustion, flaming combustion, and flaming with high heat output. However, it has a poor response to clean-burning flaming fires.
Where should this detector be installed?
The Series 65 Optical Smoke Detector is well-suited for installation in bedrooms and escape routes where early detection of smouldering fires is critical. Its resistance to wind and atmospheric pressure makes it suitable for a wide range of indoor environments operating between -20°C and +60°C.
What voltage does the detector require?
The detector operates on a supply voltage between 9V and 33V DC in normal operation. The supply may fall to 6V DC in alarm conditions provided a minimum supply current of 10mA is available. For effective illumination of the indicator LED and any remote indicator, the supply should exceed 12V.
Is the detector affected by wind or atmospheric pressure?
No, the Series 65 Optical Smoke Detector is completely unaffected by wind speed or atmospheric pressure changes, making it reliable in various environmental conditions.
How does the detector indicate an alarm condition?
When smoke is detected, the detector signals an alarm by increasing the current drawn from the supply from approximately 40µA to a maximum of 75mA. This impedance change is recognised by the control panel as an alarm signal. The detector’s integral clear LED illuminates red, and any connected remote indicator will also activate.
What bases are compatible with this detector?
The detector is compatible with all Series 65 detector bases, including the Standard Base (45681-200), Standard Relay Base (45681-245), Auxiliary Relay Base (45681-246), and EOL Relay Bases for different voltage ranges (45681-247 and 45681-248).
How do you reset the detector after an alarm?
To restore the detector to its quiescent condition, you must expel any smoke from the chamber and interrupt the electrical supply to the detector for a minimum of one second.
What is the detector’s sensitivity threshold?
The detector has a nominal alarm threshold of 0.15 dB/m obscuration, measured in accordance with EN 54-7 standards, providing reliable detection while minimising false alarms.
Does the detector require polarity-sensitive wiring?
No, the Series 65 Optical Smoke Detector features polarity insensitive connections, making installation simpler and reducing the risk of wiring errors.
What certifications does this detector hold?
The detector is certified to EN 54-7, complies with the EMC Directive 2014/30/EU, and meets the essential requirements of the Construction Products Regulation (EU) 305/2011. It is also certified to ISO 9001:2015 and ISO 14001:2015 standards.
Specifications
- Part Number: 55000-317
- Detection Principle: Photo-electric detection of light scattered in a forward direction by smoke particles
- Chamber Configuration: Horizontal optical bench housing an infrared emitter and sensor arranged radially to detect scattered light
- Sensor: Silicon PIN photo-diode
- Emitter: GaAs infrared light emitting diode
- Sampling Frequency: Once every three seconds
- Confirmation Frequency: Once every two seconds
- Supply Wiring: Two wire supply, polarity insensitive
- Supply Voltage: 9V to 33V DC
- Ripple Voltage: 2V peak to peak maximum at 0.1 Hz to 100 kHz
- Quiescent Current: 30-50 µA at 24V
- Power-Up Surge Current: 115 µA at 24V
- Alarm Voltage: 6V to 28V
- Normal Alarm Current: 61 mA at 28V, 52 mA at 24V, 18 mA at 10V
- Alarm Indicator: Clear light emitting diode (LED) emitting red light
- Alarm LED Current: 4 mA
- Remote Output Characteristics: Remote is a current sink to the negative line limited to 17 mA
- Sensitivity: Nominal alarm threshold of 0.15 dB/m obscuration, measured in accordance with EN 54-7
- Operating Temperature: -20°C to +60°C
- Humidity: 0% to 95% RH (no condensation or icing)
- Effect Of Atmospheric Pressure: Unaffected
- Effect Of Wind Speed: Unaffected
- Vibration, Impact And Shock: EN 54-7
- Dimensions: 100mm diameter x 42mm height
- Weight: 99g
- Housing Material: White flame-retardant polycarbonate
- Terminal Material: Nickel plated stainless steel
- Certifications: EN 54-7, EMC Directive 2014/30/EU, Construction Products Regulation (EU) 305/2011
Downloads
- Datasheet (Adobe PDF)
