Apollo Discovery Optical Smoke Detector
£34.22 (inc VAT: £41.06)
Summary
The Apollo Discovery Optical Smoke Detector is a sophisticated fire detection device that utilises photo-electric technology based on the light scatter principle. This advanced detector is specifically engineered to excel in applications where slow burning or smouldering fires are most likely to occur, making it an ideal choice for protecting accommodation areas, corridors, and escape routes.
Featuring robust digital communication capabilities, the detector is fully compatible with Discovery, XP95, and CoreProtocol fire alarm systems. The device incorporates intelligent signal processing technology that provides exceptional reliability whilst minimising false alarms through advanced transient signal rejection and drift compensation features.
Built to withstand challenging environmental conditions, the Discovery Optical Smoke Detector operates effectively across a wide temperature range and remains unaffected by wind or atmospheric pressure variations. Its comprehensive certification portfolio, including EN 54-7, CPR, LPCB, and VdS approvals, ensures compliance with international fire safety standards.
Features
- Photo-electric detection using infrared light scatter principle
- Responds exceptionally well to slow burning and smouldering fires
- Five EN54 approved response modes with selectable sensitivity levels
- Digital communication with Discovery, XP95 and CoreProtocol compatibility
- Remote test feature for simplified maintenance and testing
- Drift compensation technology maintains consistent sensitivity
- Rejection of transient signals reduces false alarm occurrences
- Unaffected by wind or atmospheric pressure changes
- Two integral 360° viewable LED indicators with optional remote LED
- Flashing LED mode programmable for polling indication
- Wide operating temperature range from -40°C to +70°C
- Compact 100mm diameter design with wind-resistant smoke inlets
- White flame-retardant polycarbonate housing
- Two-wire supply connection with polarity insensitive terminals
FAQ
What types of fires does the Discovery Optical Smoke Detector respond to best?
The detector provides very good response to overheating and thermal combustion, moderate to good response for smouldering and glowing combustion, and good response to flaming combustion. It is particularly well-suited for detecting slow burning and smouldering fires, making it ideal for accommodation areas and escape routes.
What are the different response modes available?
The detector offers five EN54 approved response modes with varying sensitivity levels and time delays. Mode 1 provides the highest sensitivity (1.4%/m threshold, 5-second minimum alarm time), whilst Mode 5 offers lower sensitivity (2.4%/m threshold, 5-second minimum alarm time). Modes 2 and 4 include 30-second time delays for enhanced stability.
Can the detector be tested remotely?
Yes, the detector features a remote test function that can be activated from the fire control panel. When commanded, the detector is forced electrically into alarm and returns an analogue value of 85 to confirm correct operation, eliminating the need for physical access during routine testing.
What fire alarm systems is this detector compatible with?
The Discovery Optical Smoke Detector is compatible with Discovery protocol systems as well as XP95 and CoreProtocol fire alarm panels. For specific system compatibility and feature support, consult your chosen panel manufacturer’s documentation.
How does the detector prevent false alarms?
The detector incorporates several false alarm prevention features including rejection of transient signals, drift compensation technology to maintain consistent sensitivity despite chamber contamination, and intelligent signal processing that filters out rapid changes unlikely to be caused by genuine fire conditions.
What are the power requirements?
The detector operates on a two-wire loop circuit with an operating voltage range of 17V to 28V DC. It has a low quiescent current consumption of 300µA and draws 3.5mA when the LED alarm indicator is illuminated.
Specifications
- Part Number: 58000-600
- Detection Principle: Photo-electric detection of light scattered in forward direction by smoke particles
- Chamber Configuration: Horizontal optical bench housing infrared emitter and sensor arranged radially
- Sensor Type: Silicon PIN photo-diode
- Emitter Type: GaAlAs infrared light emitting diode
- Sampling Frequency: Once per second
- Digital Communication: Discovery, XP95 and CoreProtocol compatible
- Modulation Voltage: 5-9V peak to peak
- Operating Voltage: 17V – 28V DC
- Quiescent Current: 300µA
- Power-up Surge Current: 1mA
- Maximum Power-up Time: 10 seconds
- Alarm Current LED Illuminated: 3.5mA
- Clean-air Analogue Value: 23 +4/-0
- Alarm Level Analogue Value: 55
- Operating Temperature: -40°C to +70°C
- Storage Temperature: -40°C to +80°C
- Humidity Range: 0% to 95% RH (no condensation or icing)
- Dimensions: 100mm diameter x 42mm height (50mm height with XPERT 7 base)
- Weight: 105g (160g with XPERT 7 mounting base)
- Housing Material: White flame-retardant polycarbonate
- Terminal Material: Nickel plated stainless steel
- Standards And Approvals: EN 54-7, CPR, LPCB, VdS, BOSEC, SBSC, FG, CCMG, Kazakhstan
- Response Modes: Five EN54 approved modes with alarm thresholds from 1.4%/m to 2.4%/m
- Remote Output Characteristics: Connects to positive line through 4.5kΩ (5mA maximum)
- Alarm Indicator: Two clear 360° viewable LEDs illuminating red in alarm
Downloads
- Datasheet (Adobe PDF)
