System Sensor BS5839 manual 2251EIS Intrinsically Safe Detector and IST200 Interface

Page 23

2251EIS INTRINSICALLY SAFE DETECTOR AND IST200 INTERFACE

The 2251EIS analogue addressable photoelectric sensor is a plug in Intrinsically Safe smoke sensor combining an optical sensing chamber with analogue addressable communications. As an Intrinsically Safe sensor, the 2251EIS has been designed specifically to provide fire protection for most hazardous environments, and has therefore been engineered so that it cannot become a source of ignition in areas where potentially explosive atmospheres are likely to arise.

The IST200 translator module serves as an interface between the control panel and up to a maximum of 15 x 2251EIS smoke sensors. The IST200 must be used in conjunction with a Y72221 custom galvanic isolator barrier.

Tested and approved to EN54-7 and by BASEEFA (2001) to

EEx ia IIB T5 for use in Zone 0 hazardous areas.

Specifications

Note that there are limitations of capacitance, inductance and inductance/resistance ratio connected within the hazardous area. Reference must therefore be made to product data before installation of these devices.

Voltage:

17 to 24VDC

Max. standby current:

330µA

 

(One communication every 5s

 

with LED blink enabled)

Max. alarm current:

4.2mA at 24VDC

Weight:

102g

IST200

 

Input Voltage:

15 to 32VDC

Output Voltage:

20 to 24VDC

Supply Current:

14mA at 24VDC

Dimensions:

70mm x 70mm x 32mm (h x w x d)

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.

System Sensor Intelligent Product Range

23

Page 22 Page 24
Image 23
Page 22 Page 24
Contents Guide to intelligent fire systems Contents Guide to Intelligent Fire Alarm SystemsGuide to Intelligent Fire Alarm Systems Intelligent Fire Alarm SystemsIntelligent Fire Alarm Systems Dedicated address programmer Decimal address switchesSystem Fault Tolerance Addressing MethodsFire System Zones Intelligent Fire Alarm SystemsPRE-ALARM Facility Advantages of Intelligent Systems Programming of Intelligent Fire Alarm PanelsRemote Leds Interface ModulesCategory M Systems GuideDetector Application Guide Fire System CategoriesApplication Guide 1. Manual Call Point Positioning Manual Call PointsSelection of Automatic Fire Detectors During normal use Fixed temperature detector 58CRate of rise heat detector Areas subject to rapid changesTo EN54-7 10.5m Heat detector conforming to Location and Spacing of Automatic Fire DetectorsCeiling Height Detector typeSloping Ceilings CorridorsCorridor being 7.5m and 5.3m respectively Voids and False Ceilings Lantern LightsLocation and Spacing of Optical Beam Detectors Visual Alarm Signals Audible Alarm SignalsCodes and standards in the UK BS5839 Part 12002, Section Maintenance of Fire DetectorsSeries 200 Plus Analogue Addressable Detector Range Series 200 Plus FeaturesGeneral Specifications Intelligent Product Range2251TEM PHOTO-THERMAL Sensor WeightSystem Sensor Intelligent Product Range 2251EM Photoelectric Smoke Sensor5251REM, 5251EM and 5251HTEM Heat Sensors Drift Compensation and Smoothing6500S Beam Detector Remote Test SwitchLaser Detector Operating Temperature -10C to 55CWeight 142g 2251EIS Intrinsically Safe Detector and IST200 Interface With LED blink enabledB500 Series Bases Depth Weight 100gInterior diameter Exterior diameterM200XE Short Circuit Isolator Module M200 Series Module RangeM210E-CZ Conventional Zone Module Specifications Max Standby Current, externally powered zoneM201E Output Module 5A at 250VACIndoor products are generally rated at IP24D AccessoriesCall Points IndoorMajority of back box formats Audio Visual ProductsDetector Base Sounders Sounder StrobesOther Information Jernholmen DK-2650 Hvidovre Denmark Tel +45 36 349 Other InformationApproval Bodies for Fire Detection Products Avenue Hoch Paris, France Tel +33 1 53 89 00Fax + 7 095 System Sensor Fire DetectorsVolochaevskaya Str 40, Bld Telephone + 7 095 Telephone + 91 124

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.
Top Page Image Contents