XP95 I.S. Optical Smoke Detector
£123.91 (inc VAT: £148.69)
Summary
The XP95 Intrinsically Safe (I.S.) Optical Smoke Detector represents cutting-edge fire detection technology specifically designed for hazardous environments where explosive atmospheres may be present. Utilising advanced photo-electric detection principles, this detector identifies smoke particles through light scatter technology, making it exceptionally effective at detecting slow burning or smouldering fires that are characteristic of many industrial and commercial fire scenarios.
Engineered to meet the stringent requirements of intrinsically safe installations, this detector carries BASEEFA and IECEx certifications with Ex ia IIC T4/T5 GA classification, ensuring safe operation in potentially explosive atmospheres. The high series impedance design is an integral part of the intrinsically safe system architecture, though this does limit the maximum number of detectors that can be installed on a single circuit – typically 20 detectors, or 12 optical detectors in IIC environments, depending on barrier type and system configuration.
The detector seamlessly integrates with XP95 digital communication systems and maintains full compatibility with both Discovery and CoreProtocol® fire alarm panels. Its robust construction features a white flame-retardant polycarbonate housing with IP44 environmental protection, whilst the wide operating temperature range of -20°C to +60°C ensures reliable performance across diverse installation environments.
Features
- BASEEFA and IECEx intrinsically safe certification
- Ex ia IIC T4/T5 GA classification for hazardous area installation
- Photo-electric smoke detection using light scatter principle
- XP95 native digital communication with Discovery and CoreProtocol® compatibility
- Well suited to escape routes and critical areas
- Unaffected by wind or atmospheric pressure variations
- Integral red LED alarm indicator
- Remote LED capability with current limiting protection
- IP44 environmental protection rating
- Wide operating temperature range from -20°C to +60°C
- Low power consumption with 160 µA quiescent current
- White flame-retardant polycarbonate construction
- Compact 100mm diameter design
- Two-wire loop connection carrying both data and power
- Calibrated analogue output for precise smoke density measurement
- EMC Directive 2014/30/EU compliance
- Construction Products Regulation (EU) 305/2011 compliance
- Marine Equipment Directive 2014/90/EU compliance
- ATEX Directive 2014/34/EU compliance
FAQ
What makes this detector intrinsically safe?
The XP95 I.S. Optical Smoke Detector is certified to BASEEFA and IECEx standards with Ex ia IIC T4/T5 GA classification. It features high series impedance design and current limiting circuits that prevent the generation of sparks or heat sufficient to ignite explosive atmospheres. The detector must be used with approved safety barriers as part of a complete intrinsically safe system.
How many detectors can be installed on one intrinsically safe circuit?
Typically, an I.S. circuit will support a maximum of 20 detectors, though this is restricted to 12 optical detectors in IIC environments. The actual number depends on the barrier type, device configuration, and the number of detector LEDs allowed to illuminate concurrently by the control and indicating equipment.
Can I use a remote LED indicator with this detector?
Yes, the detector provides a drive point for a remote LED indicator. The indicator must be a standard high-efficiency red LED and doesn’t require a series limiting resistor as current is limited within the detector. The remote LED operates in series with the integral LED and must meet IP20 protection requirements. The Apollo MiniDisc Remote Indicator (Part No. 53832-070) is specifically recommended.
What fire types is this detector most suitable for?
The optical smoke detector is ideal for applications where slow burning or smouldering fires are likely. It works on the light scatter principle, making it particularly effective at detecting fires that produce significant amounts of smoke before flames develop, such as electrical fires, burning plastics, and organic materials.
What environmental conditions can this detector operate in?
The detector operates reliably in temperatures from -20°C to +60°C and humidity levels from 0% to 95% RH (without condensation or icing). It’s unaffected by wind or atmospheric pressure variations and carries IP44 environmental protection, making it suitable for both indoor and semi-protected outdoor installations.
Is this detector compatible with existing fire alarm systems?
The detector uses XP95 native digital communication and is compatible with Discovery and CoreProtocol® fire alarm control panels. It connects via a standard two-wire loop circuit that carries both data and power supply, simplifying installation and reducing wiring requirements.
Specifications
- Part Number: 55000-640APO
- Detection Principle: Photo-electric detection of light scattered in a forward direction by smoke particles
- Digital Communication: XP95 native. Compatible with Discovery and CoreProtocol®
- Supply Voltage: 14 V – 22 V
- Modulation Voltage: 5 V – 6 V
- Quiescent Current: 160 µA
- Power-up Surge Current: 1 mA
- Alarm Indicator: Red light emitting diode (LED)
- Alarm LED Current: 700 µA
- Remote LED Current: 500 µA (internally limited)
- Input Capacitance: 3.3 nF
- Storage Temperature: -30°C to +80°C
- Operating Temperature: -20°C to +60°C (T5), -20°C to +60°C (T4)
- Guaranteed Temperature Range: -20°C to +60°C
- Humidity: 0% to 95% RH (no condensation or icing)
- Vibration, Impact & Shock: To EN 54-7
- IP Rating: IP 44
- BASEEFA Certificate No.: BAS02ATEX1289X
- IECEx Certificate No.: IECEx BAS 12.0091X
- Classification (max ambient): Ex ia IIC T4 GA (≤ +60°C), Ex ia IIC T5 GA (≤ +60°C)
- Dimensions: 100 mm diameter x 42 mm height
- Weight: 105 g
- Housing Material: White flame-retardant polycarbonate
- Terminal Material: Nickel plated stainless steel
- Analogue Value Clean Air: 25±7 counts
- EN 54 Alarm Sensitivity Level: 55 counts
- Remote LED Surface Area: 20 mm² to 10 cm²
- Remote LED Protection: Minimum IP20
Downloads
- Datasheet (Adobe PDF)
Additional information
| Weight | 1 kg |
|---|---|
| System Type |
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