Oldham olct ir, Technical Manual

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6 User Manual
1. INTRODUCTION
The OLCT IR gas detector is designed to monitor flammable gases or CO
2
concentrations in the ambient air.
The infrared technology used by the OLCT IR guarantees extreme detection accuracy.
Powered with 24 Vdc, the OLCT IR provides a standard 4-20 mA analog output which is proportional to the
measured concentration of gas. It features a non-intrusive calibration that enables calibration in hazardous area without
declassifying the zone.
The OLCT IR detector can be used in gas and dust explosive atmospheres and meets all of the essential
requirements of the ATEX 94/9/EC European Directive and following European EN and international IEC standards:
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EN 60079-0:2012 IEC 60079-0 (ed.6):2011
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EN 60079-1:2007 IEC 60079-1 (ed.6):2007
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EN 60079-7:2007 IEC 60079-7 (ed.4):2006
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EN 60079-11:2012 IEC 60079-11 (ed.6):2011
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EN 60079-31-2014 IEC 60079-31 (ed.2):2013
Company label
The enclosure has two identifier labels, as described below
id. Description
Firmplate
1.
Manufacturer’s name
2. Type of product
3. ATEX- IECEx Marking
4.
CE symbol and the number of the
organisation that provided the OLDHAM
production quality certification (INERIS )
5. Warning.
6.
Maximun ATEX certification temperature
(excluding metrological performance)
7. Recycling symbol
8.
Detector serial number (S/N). The first two
digits (in this case 09) correspond to the
year of manufacture (in this case 2009)
9. Thread diameter and pitch for cable inlet
091214Y-903
3
7
4
5
8
1
2
6
9