IFD-E(Exd) Explosion-Proof Flame Detector User Manual
Hochiki Europe (UK) Ltd General Description This Installation Guide gives information on the Flameproof (EExd) version of the flame detectors that have been approved by ISSeP (Institut Scientifique de Service Public; notified body number:492). The requirements of the European Community Directive 94/9/EC, the ATmosphere EXplosives ATEX Directive have been met.
Hochiki Europe (UK) Ltd 3 Classification of Hazardous Areas EN 60079-0 (formally EN50014) states that electrical apparatus for potentially explosive atmospheres is divided into: Group I: Electrical apparatus for mines susceptible to fire damp; Group II: Electrical apparatus for places with a potentially explosive atmosphere, other than mines susceptible to fire damp. These flame detectors are designed to meet the requirements of Group II apparatus.
Hochiki Europe (UK) Ltd Equipment Markings Type of Explosive Atmosphere Group II Equipment Category Definition G - gas vapour mist D - dust Zone 1 - very high level of protection in which explosive atmosphere mixtures of air gases, vapours or mist are present continuously, for long periods 2 0 - high level of protection in which explosive atmosphere mixture of air and gases, vapours or mist are likely to occur 3 1 - normal level of protection in which explosive atmosphere mixtures of air and
Hochiki Europe (UK) Ltd 5 Temperature Class Referred to ambient of -20°C to +40°C T6 Type of Protection Code Equipment Category ia Intrinsic safety 1 ib Intrinsic safety 2 d Flameproof 3 Code These Flame Detectors are approved ia.
Hochiki Europe (UK) Ltd Flameproof Safe Products Technical Data Mechanical Housing Material: See Fig 1 Housing Colour: Housing Dimension: (Excluding Mount) Weight Cable Gland Entries: Fig. 1 Flameproof Flame Detector (Alloy Housing) The flame detectors respond to light emitted from flames during combustion. The detectors discriminate between flames and other light sources by responding only to low frequency flickering produced by flames (typically 1 to 15Hz).
Hochiki Europe (UK) Ltd 7 System Design Engineers familiar with codes of practice for hazardous area systems should only undertake the design of an flameproof fire detection system. In Europe the standard is EN 60079-0 (formally EN 50014), Electrical apparatus for potentially explosive atmospheres – General requirements. The fire detector performance is the same as the standard none flameproof counterparts.
Hochiki Europe (UK) Ltd Enclosure Details Health and Safety at Work Act In the UK all equipment must be installed and disposed of (as required) within the legislative requirements of the Health & Safety at Work Act 1974. Installation No modification should be made to the enclosure without reference to the manufacturer as unauthorised modification to an approved enclosure will invalidate the certificate/approval 1. The enclosures are supplied with drilled and tapped entries. See enclosure drawing 2.
Hochiki Europe (UK) Ltd 9 Enclosure with Front Cover Removed 2-3-0-810/ISS3/OCT11
Hochiki Europe (UK) Ltd EExd System Drawing NOTE 1 WARNING – Ensure ALL power is OFF before/during installation/maintenance. NOTE 2 Ensure the details on the enclosure label comply with the hazardous area specified. NOTE 3 The installation must comply with national installation requirements (for example to EN 60079-14) NOTE 4 If required a loading resistor or end of line device (EOL) can be connected between the detector terminals of any circuit.
Hochiki Europe (UK) Ltd 11 Hochiki CHQ Module Connection Information Fig 10 Connection Diagram using a CHQ-SZM Single Zone Monitor (or CHQ-MZ) 2-3-0-810/ISS3/OCT11
Fig 11 Connection Diagram using a CHQ-DIM Dual Input Module (or CHQ-S) 2-3-0-810/ISS3/OCT11 Hochiki Europe (UK) Ltd
Hochiki Europe (UK) Ltd 13 Fig 12 Connection Diagram using a CHQ-POM Powered Output Module NOTE: The CHQ-POM has a variable output, this should be set at 30mA.
Fig 13 Connection Diagram using a CHQ-DZM Dual Zone Monitor (or CHQ-Z) 2-3-0-810/ISS3/OCT11 Hochiki Europe (UK) Ltd
Hochiki Europe (UK) Ltd 15 Hochiki Europe (UK) Ltd Grosvenor Road, Gillingham Business Park, Gillingham, Kent, ME8 0SA, England Telephone: +44(0)1634 260133 Facsimile: +44(0)1634 260132 Email: sales@hochikieurope.com Web: www.hochikieurope.com Hochiki Europe (UK) Ltd. reserves the right to alter the specification of its products from time to time without notice.
