System Sensor BS5839 manual Laser Detector, Operating Temperature -10C to 55C, Weight 142g

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System Sensor Intelligent Product Range

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7251 LASER DETECTOR

The Pinnacle high sensitivity laser based intelligent smoke sensor is a unique offering from System Sensor that provides extremely high sensitivity to fire conditions, by detecting the earliest particles of combustion. This is achieved by combining a patented optical chamber with the latest in laser diode and precision optics technology, which enhances the sensitivity of the device. The chamber is also linked to sophisticated processing circuitry that incorporates smoothing filters to help eliminate transient environmental noise conditions, which can be the cause of unwanted alarms. The result is a very sensitive but stable sensor that can achieve sensitivities of 0.006% to 0.6% per metre obscuration and provides up to 100 times more sensitivity than a standard photoelectric smoke sensor. With its quick response and pinpoint accuracy, this unique sensor is ideally suited to environmental applications where there is substantial cost for downtime or a significant investment in installed equipment has been made (e.g. Electronics Manufacturer Clean Rooms, Telecommunication Rooms, Computer Rooms etc.).

The sensor’s performance is improved even further by the inclusion of special drift compensation algorithms, which compensate for the build up of contamination in the sensing chamber. There are three stages of drift compensation, ‘low level alert’, ‘high level alert’ and ‘maintenance urgent’. The ‘low and high level alert’ signals are used to identify that the Pinnacle sensor has accumulated significant amounts of airborne particles and requires maintenance, whilst the ‘maintenance urgent’ signal indicates that the sensor has reached the end of its compensation range.

Tested and approved to EN54-7: 2000

Specifications

 

Operating Voltage:

15 to 32VDC

Max Standby Current:

230µA at 24VDC (No communications)

Operating Temperature: -10°C to 55°C

Weight:

142g

Note: This document is based on the recommendations of BS5839 Part 1: 2002. It is intended only as a guide to the application of fire detection systems.

Reference must be made to relevant national and local standards.

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Contents Guide to intelligent fire systems Guide to Intelligent Fire Alarm Systems ContentsGuide to Intelligent Fire Alarm Systems Intelligent Fire Alarm Systems Alarm SystemsIntelligent Fire Addressing Methods Decimal address switchesSystem Fault Tolerance Dedicated address programmerPRE-ALARM Facility Intelligent Fire Alarm SystemsFire System Zones Interface Modules Programming of Intelligent Fire Alarm PanelsRemote Leds Advantages of Intelligent SystemsFire System Categories GuideDetector Application Guide Category M SystemsApplication Guide Manual Call Points 1. Manual Call Point PositioningSelection of Automatic Fire Detectors Areas subject to rapid changes Fixed temperature detector 58CRate of rise heat detector During normal useDetector type Location and Spacing of Automatic Fire DetectorsCeiling Height To EN54-7 10.5m Heat detector conforming toCorridor being 7.5m and 5.3m respectively CorridorsSloping Ceilings Location and Spacing of Optical Beam Detectors Lantern LightsVoids and False Ceilings Audible Alarm Signals Visual Alarm SignalsMaintenance of Fire Detectors Codes and standards in the UK BS5839 Part 12002, SectionIntelligent Product Range Series 200 Plus FeaturesGeneral Specifications Series 200 Plus Analogue Addressable Detector Range2251EM Photoelectric Smoke Sensor WeightSystem Sensor Intelligent Product Range 2251TEM PHOTO-THERMAL SensorDrift Compensation and Smoothing 5251REM, 5251EM and 5251HTEM Heat SensorsRemote Test Switch 6500S Beam DetectorWeight 142g Operating Temperature -10C to 55CLaser Detector With LED blink enabled 2251EIS Intrinsically Safe Detector and IST200 InterfaceB500 Series Bases Exterior diameter Weight 100gInterior diameter DepthM200 Series Module Range M200XE Short Circuit Isolator Module5A at 250VAC Specifications Max Standby Current, externally powered zoneM201E Output Module M210E-CZ Conventional Zone ModuleIndoor AccessoriesCall Points Indoor products are generally rated at IP24DSounder Strobes Audio Visual ProductsDetector Base Sounders Majority of back box formatsOther Information Avenue Hoch Paris, France Tel +33 1 53 89 00 Other InformationApproval Bodies for Fire Detection Products Jernholmen DK-2650 Hvidovre Denmark Tel +45 36 349Telephone + 7 095 Telephone + 91 124 System Sensor Fire DetectorsVolochaevskaya Str 40, Bld Fax + 7 095

BS5839 specifications

System Sensor BS5839 is a standard that pertains to fire detection and alarm systems, providing guidelines for the design, installation, and maintenance of these essential safety tools. It is crucial for safeguarding lives and property, ensuring that fire detection systems are effective and reliable. The BS5839 standard, established in the UK, covers a wide range of fire alarm system types, including conventional, addressable, and wireless systems.

One of the main features of BS5839 is its comprehensive classification of fire detection systems. The standard divides systems into categories based on the level of risk and the environment in which the system will operate. This classification helps ensure that the system installed meets the specific needs of the building and its occupants. For example, Category L systems are meant for life safety, while Category P systems are designed to protect property.

The technologies underpinning BS5839 include various types of detectors, alarm devices, and control panels. Smoke detectors, heat detectors, and multi-sensor detectors are prominent among the devices specified in the standard. Smoke detectors use photoelectric or ionization principles to detect smoke and signal an alarm, while heat detectors respond to temperature changes. Multi-sensor detectors combine both smoke and heat detection technologies to provide a more reliable response to fire conditions.

Another key characteristic of BS5839 is the emphasis on regular testing and maintenance. The standard outlines procedures to ensure that systems remain operational and effective over time. This includes routine system checks, functional testing, and more in-depth inspections at regular intervals. Ensuring that systems are maintained according to BS5839 is vital for compliance with insurance requirements and for safeguarding against potential legal liabilities.

Furthermore, BS5839 highlights the importance of staff training and awareness. It emphasizes that personnel responsible for fire safety must be adequately trained in the operation and response to fire alarm systems. This ensures that in the event of a fire, occupants are prompted to take appropriate action and evacuate safely.

In summary, System Sensor BS5839 provides a crucial framework for fire detection and alarm systems. Its classification of systems, incorporation of advanced technologies, and emphasis on maintenance all contribute to enhanced safety and compliance, protecting lives and property effectively.
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