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FIRERAY 2000 EExd

Hazardous Area Smoke Detector

Installation Guide

Page 1 of 12

 KEY FEATURES

 Flameproof Receiver and Transmitter

 Standard Fireray Controller Unit

 High Coverage - up to 1500

m per system

 Low Cost

 Beam Range 10 metres to 100 metres

 12 Volts dc to 24 Volts dc operation

 Selectable Alarm Thresholds

 Low Current Consumption

 Manual or Automatic Fire Alarm Reset

 Automatic Fault Alarm Reset

 Ground Level Electronics

 Extremely Rugged

 Easy installation

 Low maintenance

 APPLICATIONS

 Ex II 2 G Environments

 Refineries

 Mills

 Munitions Factories

 Munitions Stores

 Flammable Liquid Stores

 Flammable Gas Stores

 Flammable Powder Stores

 Industrial Plants

 Power Stations

 Warehouses

 Applications requiring highly rugged

detector heads

DESCRIPTION

The FIRERAY 2000 EExd SMOKE DETECTOR SYSTEM is designed primarily to protect EExd, IIB

hazardous areas.

It consists of a standard Fireray 2000 Controller/Analyser, combined with highly rugged flameproof

Transmitter and Receiver heads.

The Transmitter and Receiver Heads are designed to be mounted within the protected hazardous area,

whilst the Analyser is housed outside it. Using the Standard Analyser unit in this way allows a

significant cost reduction when compared to a system utilising flameproof enclosures for all component

parts. The maximum lateral beam coverage is 15m per Fireray System installed.

Once installed, the Transmitter Head projects a modulated Infra-Red Beam across the protected area, to

the Receiver head mounted opposite. The received signal strength is monitored and analysed in the

Ground Level Controller. Should the beam strength fall below the preset threshold for more than 8 -10

seconds, a Fire Alarm is signalled to the Control Equipment. The analyser also incorporates monitoring

for cable breaks or loss of function at the Transmitter or Receiver. If the signal strength is reduced

suddenly (<5 seconds) by greater than 93% a Fault Alarm is indicated to the Control equipment. The

Fire and Fault Alarm outputs are provided via two sets of Voltage-Free change-over relay contacts.

The Fire Alarm Relay may be set for latched or auto-reset operation as desired. The Fault Alarm is

designed to auto-reset once the signal is returned to serviceable limits.

The system may be used with ‘intelligent’ or ‘non-intelligent’ systems. Due to the very low current

consumption, back-up battery life is extended and the system may be powered from alarm loop supplies

in most cases.

PARTS LIST

1 x Transmitter Head (With Clear Lens)

1 x Receiver Head (With Dark Lens)

1 x Controller/Analyser Unit

1 x Adjustable Head Mounting Bracket

1 x Test Filter

1 x Installation Guide (This document)

2 x Allen keys (5mm & 10mm)

1 x Bag of Bracket Fixings

1 2 3 4 5 6 ... 11 12

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Strona 1 - Installation Guide

FIRERAY 2000 EExd Hazardous Area Smoke Detector Installation Guide Page 1 of 12  KEY FEATURES  Flameproof Receiver and Transmitter 

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Page 10 of 12 -VE +VE Do not route wiring within the 50mm circular central area, to avoid obscuring optical components Internal Earth stud will

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Page 11 of 12 This page left intentionally blank

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Page 12 of 12 FIRERAY 2000 EExd - SYSTEM SPECIFICATION SYSTEM TYPE Transmitter (TX) Rugged for EExd IIB areas - IP67 Receiver (RX) Rugged fo

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Page 2 of 12 STATEMENT OF INTENDED USE This system is intended for use as a Smoke Detector only, in EExd IIB, or lower grade areas. It must not

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Page 3 of 12 WARNING The area into which the Fireray parts are to be fitted must be made safe before attempting any work on the system. It must

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Page 4 of 12 Two possible actions are selectable, once the system has exhausted all compensation steps, as follows:-  Leave the COMP switch in

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Page 5 of 12  During installation, no threshold switch set at the Controller Unit (One switch only must be set). Possible Causes Of FIRE And

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Page 6 of 12 screws, between the Receiver Case and the mounting surface. (Some applications may require fabrication of angled mounting brackets e

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Page 7 of 12 TESTING THE SYSTEM Following installation, test the system as follows :- First ensure that the system is running and has been al

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Page 8 of 12 RxHIGHLAMPLOWLAMPRELAY WIRING,CONNECT AS REQUIREDTO INDICATINGEQUIPMENTTEST/RESETON OFFSW5+V RxSIGNAL Rx0V RxTESTMETEREXTERNALRESE

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Page 9 of 12 1020406080100 TRANSMITTER REQUIRES 2 CORE SCREENED WIRING TO SUITABLE POWER SUPPLY, PLUS ENCLOSURE EARTH BONDING. THE ENCLOSURE

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