INTRINSICALLY SAFE FIRE DETECTION “for …

1 INTRINSICALLY safe FIRE DETECTION .. Hochiki's INTRINSICALLY safe Conventional range of products has been designed around the existing world-proven Hochiki conventional range. The detectors have been approved for hazardous area use by both LPCB and Germanischer Lloyd. GALVANIC ISOLATOR ONLY. EOL. CONVENTIONAL CONTROL PANEL. 1. 2. Z787 ZENER BARRIER ISOLATED BARRIER. The Zener Barrier is a relatively simple device, This isolated barrier is used for intrinsic safety the technique employed to reduce the amount applications. It transfers DC signals from fire alarms, of energy entering the hazardous area is the limiting smoke alarms, and temperature sensors in hazardous of the voltage and current using resistors and zener areas.

2 It can also be used to control I/P converters, diodes. Zener Barriers require earthing in accordance power solenoids, LEDs, and audible alarms. with standards (typically <1 ohm to main building earth point). 1. PANEL. PANEL. 2. ZENER BARRIER. EOL. (MUST BE EARTHED). or ANALOGUE CONTROL PANEL. GALVANIC ISOLATOR. HAZARDOUS AREA. 1. Up to 20 INTRINSICALLY safe . Detectors (SLR-E-IS or DCD-1E-IS). II 1 G E Ex ia IIC T5 Tamb=55 C Ex Unlimited number 2. BASEEFA Flammable Atmospheres symbol of INTRINSICALLY safe . Maximum normal environment temperature Manual Call Points (CCP-E-IS).

3 Hochiki's INTRINSICALLY safe detectors have been Maximum Surface Temperature of any component, certified by BASEEFA under the new ATEX directive (always first on the zone) LOOP. T5 = 100oC. which will become mandatory as of the 1st July 2003. Defines Gas Group within which device can be used This directive changes the classification for the risk EOL To ensure that the surface safe AREA. temperature of the resistor Method of Protection, ia = INTRINSICALLY safe areas into categories and also changes the bias remains below that of the ZONE CIRCUIT.

4 With two faults to prevent explosive atmospheres (EN 1127-1). The certification marking of Hochiki's DCD-1E-IS flash-point of the hazardous Explosion protected material present it is certified HAZARDOUS AREA. Heat Detector and SLR-E-IS Photolectric Smoke Meets European Standard Detector is shown left with an explanation that the overall surface area ZONE CIRCUIT. Type of Explosive Atmosphere, G = Gas group of each part. must be greater than 230mm2. Equipment Category, 1 = Very High Protection AUXILIARY POWER. Equipment Group, II = Non-mining Atmospheres EU Explosives Atmospheres symbol Hochiki Australia Pty Ltd Hochiki Australia Pty Ltd INTRINSICALLY safe FIRE DETECTION .

5 High Performance Chamber S upports either a Frangible Glass' element SLR-E-IS CCP-E-IS. Twin fire LEDs allow 360 viewing or a Non-Frangible Plastic' element A Conventional Photoelectric Smoke Detector designed Supported by a range of barriers A Conventional Manual Call Point designed Terminals can accommodate up to a for use in hazardous areas. Incorporates a remote indicator Remote indicator output for use in hazardous areas and based upon solid conductor output and a removable chamber for easy maintenance. IECEx certification to: II 1G EEx ia IIC T5 the industry standard KAC world series housing.

6 Approved to EN54 part 12. (Tamb=55 C) Rugged design Suitable for installation in areas at category 1 ATEX classification to II 1G EEx ia IIC T4. (inc. all lower categories). Approved by BASEEFA. Twin fire LEDs allow 360 viewing DCD-1E-IS CCP-W-IS. S upports either a Frangible Glass' element Electronics free mounting base or a Non Frangible Plastic' element A Conventional Rate of Rise Heat Detector designed Remote indicator output A Conventional Manual Call Point designed Terminals can accommodate up to a for use in hazardous areas.

7 Incorporates a remote indicator I ECEx certification to: II 1G EEx ia IIC for use in hazardous areas and based upon solid conductor output and a 60 C fixed temperature element. T5 (Tamb=55 C) the industry standard KAC world series housing. Approved to EN54 part 12. Suitable for installation in areas at category 1 Rugged design (inc. all lower categories) ATEX classification to II 1G EEx ia IIC T4. Approved by BASEEFA. Low profile, only 8mm Single loop address YBN-R/4 (IS) CHQ-DZM (SCI)-IS. Rugged design Supports two independent zones A Conventional Detector Mounting Base associated Dedicated cable screen terminal A Dual Zone Module which is fully compatible with of Hochiki conventional detectors with the Hochiki conventional range of INTRINSICALLY Accepts from 1 to cables Hochiki's ESP Analogue Addressable protocol and Both zones fully monitored for safe Detectors and is fully compatible with the majority Quick connection via square cable clamps equipment.

8 The module will allow connection of up short/open-circuit of existing conventional fire alarm Control Panels. Electronics free to 40 Hochiki conventional detectors (20 per zone) Requires an auxiliary 24 Vdc supply through a Galvanic Isolator, which are then fully monitored DIN Rail version available for open and short circuit. Also available as a DIN Rail Both models feature an integral mountable version. Both models feature an integral Short-Circuit Isolator Short-Circuit Isolator. Unaffected by convection currents, draughts IFD-E(IS) Provides dual sounder circuits Infra Red INTRINSICALLY safe Flame Detector Alloy Housing or wind and solar-blind CHQ-ISM.

9 Tolerant of fumes, vapours, dust and mist Provides fault-monitored input is an INTRINSICALLY safe IR flame detector designed ATEX certification to: EEx ia IIC T4 (135 C) This Sounder Control Module interfaces between the Hochiki Interfaces between loop and for use where open flaming fires may be expected (zones 0, 1 and 2) Analogue system via a CHQ-DSC or conventional sounder sounders/beacons and responds to the light emitted from flames during Responsive to a flame more than 25 m away O/P's and the INTRINSICALLY safe sounder/beacon units Fully monitored for short-circuits combustion.

10 The detector discriminates between flames Selectable response speed via an INTRINSICALLY safe barrier. The module provides Requires 24 Vdc external power supply and other light sources by responding only to particular Class 1 performance as defined in BS EN54 line monitoring for open or short circuits on the wiring Also available as a DIN module optical wavelengths and flame flicker frequencies. 10:2002 (on the high sensitivity setting) connected to both the safe and hazardous areas. This enables the detector to avoid false alarms due to such Optical self-test factors as flickering sunlight.