Fireray 2000 EExd Installation Manual

Hazardous Area Smoke Detector
 KEY FEATURES
 Flameproof Receiver and Transmitter
 Standard Fireray Controller Unit
 High Coverage - up to 1500
 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
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.
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 Bag of Bracket Fixings
FIRERAY 2000 EExd
Installation Guide
2
m per system
PARTS LIST
Page 1 of 12
 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
1 x Test Filter
1 x Installation Guide (This document)
2 x Allen keys (5mm & 10mm)