Apollo XP95 I.S. Optical Smoke Detector
£138.02 (inc VAT: £165.62)
Summary
The XP95 Intrinsically Safe (I.S.) Optical Smoke Detector is specifically designed for fire detection in hazardous environments where explosive atmospheres may be present. Utilising advanced photo-electric light scatter technology, this detector excels at identifying slow burning or smouldering fires, making it an ideal choice for applications where early detection of these fire types is critical.
Certified to ATEX and IECEx standards with Ex ia IIC T4/T5 GA classification, the detector operates seamlessly within intrinsically safe systems when connected via an approved safety barrier. The XP95 native digital communication protocol ensures compatibility with Discovery and CoreProtocol systems, whilst the robust IP44-rated construction provides reliable performance across a wide temperature range of -20°C to +60°C.
Particularly well suited for escape routes and areas requiring enhanced safety measures, the detector remains unaffected by wind or atmospheric pressure variations. The integrated remote LED capability allows for flexible installation options, with current limiting built into the detector to simplify system design whilst maintaining intrinsic safety requirements.
Features
- Photo-electric light scatter detection principle for slow burning and smouldering fires
- Intrinsically safe design certified to ATEX and IECEx standards
- Ex ia IIC T4/T5 GA classification for use in hazardous areas
- XP95 native digital communication compatible with Discovery and CoreProtocol systems
- Well suited to escape routes and critical path applications
- Unaffected by wind or atmospheric pressure variations
- IP44 ingress protection rating
- Wide operating temperature range from -20°C to +60°C
- Remote LED connection with internal current limiting
- Red LED alarm indicator with 700 µA current draw
- Low quiescent current of 160 µA
- Two-wire loop connection carrying both data and power
- Complies with EN 54-7 standards for vibration, impact and shock
- Flame-retardant polycarbonate housing construction
- Compatible with Apollo MiniDisc Remote Indicator
FAQ
What is an intrinsically safe smoke detector?
An intrinsically safe smoke detector is specifically designed for use in hazardous environments where explosive atmospheres may be present. The detector operates at low energy levels that cannot generate sufficient heat or spark to ignite flammable gases or vapours, even in fault conditions. It must be used with an approved safety barrier as part of a certified intrinsically safe system.
How many XP95 I.S. detectors can be installed on a single circuit?
Typically, an intrinsically safe circuit will support a maximum of 20 detectors, though this may be restricted to 12 optical detectors in an IIC environment. The exact number depends on several factors including the barrier type, the mix of devices fitted, and the number of detector LEDs the control and indicating equipment allows to illuminate concurrently.
What types of fires is this detector best suited for?
The XP95 I.S. Optical Smoke Detector is ideal for detecting slow burning or smouldering fires. Its photo-electric light scatter principle makes it particularly effective at identifying smoke particles from these fire types, making it well suited for escape routes and areas where early detection of smouldering fires is essential.
Can I connect a remote LED indicator to this detector?
Yes, the detector includes a drive point for connecting a remote LED indicator. It requires a standard high-efficiency red LED and does not need a series limiting resistor as current is limited internally to approximately 1 mA. The Apollo MiniDisc Remote Indicator (Part No. 53832-070) is a suitable option. The remote LED operates in series with the integral LED.
What is the operating temperature range?
The detector operates across a temperature range of -20°C to +60°C, with classification as Ex ia IIC T4 GA or Ex ia IIC T5 GA depending on the maximum ambient temperature. This wide operating range makes it suitable for various indoor and outdoor hazardous area applications.
Is the detector affected by environmental conditions?
The XP95 I.S. Optical Smoke Detector is unaffected by wind or atmospheric pressure changes. It operates reliably in humidity levels from 0% to 95% RH, provided there is no condensation or icing. The IP44 rating provides protection against solid objects and water splashes.
What fire alarm systems is this detector compatible with?
The detector uses XP95 native digital communication protocol and is compatible with Discovery and CoreProtocol fire alarm systems. It connects to a two-wire loop circuit that carries both data communication and the 14V to 22V DC power supply.
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 | |
| Colour |
