J. D. NEUHAUS JDN mini Series Operation And Assembly Instructions
Also see for JDN mini 1000: Installation and operation manual
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Contents
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The basis for the following information is an expertstatement by the DMT Gas & Fire Division on the useof JDN Hoists, Trolleys and Crane Systems in explosion-hazardous areas, based upon European Guideline94/9/EC1 (˝ATEX 100a˝). DMT is accredited with thetesting of devices and protection systems for intendeduse in explosion-hazardous areas.MINI type JDN Air Hoists are category 3 devices forgeneral industrial use and for use in zone 2 for gasesof explosion group IIA. They are also suitable for usein zone 22 for dusts, provided that no light metal orother impact-sensitive dusts are present.They are designated by II 3 GD IIA T4(X)A D D I T I O N A L M A R K I N G ˝ X ˝This designation refers to explosion protection detailsin the operation manual.II 3 GD IIA T4(X):This designation does not permit use in the presence oflight metal or other impact-sensitive dusts, or in thepresence of dusts with glow temperatures below 210° Cor ignition temperatures below 202° C. The permissibleambient temperature range (Ta) extends from - 20° C to+ 50° C.M AT E R I A L S F O R F R I C T I O N A N D I M PAC T H A Z A R D SImpacts between particular materials result in anincreased ignition hazard. This does not apply tocorrosion-resistant steel or cast iron against aluminium,magnesium or corresponding alloys. It applies in partic-ular to the presence of rust or of rust film. Rust (alsorust film) formation is possible, especially on the chainand on the load hook, at the friction points. The follow-ing holds true for all zones: For the intended use ofhoists it must be ensured that no rust is present at theabove-mentioned friction points and that materialcombinations of the above-named light metals withsteel (exception being stainless steel) or cast iron arenot used in the working area of the hoists, at potentialfriction, impact or sliding points.It is thus possible to exclude sparking due to mechani-cal influences with these material combinations.The external housing of the service units is made ofaluminium. Therefore the installation position is to beselected so as to ensure that there is no risk fromimpact sparks.C L E A N I N G P L A S T I C S U R FAC E SWhere JDN Air Hoists or JDN Air Winches feature plasticparts, these surfaces must only be cleaned using a dampcloth (cleaning cloth with water). This reduces electro-static charging that can arise due to mechanical frictionat the plastic surface.DA N G E R !Electrostatic charging may occur at theplastic surfaces, potentially leading toelectrostatic discharge that can ignitegases and air mixtures.E X P L O S I O N P RO T E C T I O Npowered by air!PRODUCT INFORMATIONPage 9 |
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