The basis for the following information is an expert
statement by the DMT Gas & Fire Division on the use
of JDN Hoists, Trolleys and Crane Systems in explosion-
hazardous areas, based upon European Guideline
94/9/EC
1
(˝ATEX 100a˝). DMT is accredited with the
testing of devices and protection systems for intended
use in explosion-hazardous areas.
MINI type JDN Air Hoists are category 3 devices for
general industrial use and for use in zone 2 for gases
of explosion group IIA. They are also suitable for use
in zone 22 for dusts, provided that no light metal or
other 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 details
in the operation manual.
II 3 GD IIA T4(X):
This designation does not permit use in the presence of
light metal or other impact-sensitive dusts, or in the
presence of dusts with glow temperatures below 210° C
or ignition temperatures below 202° C. The permissible
ambient 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 S
Impacts between particular materials result in an
increased ignition hazard. This does not apply to
corrosion-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 (also
rust film) formation is possible, especially on the chain
and on the load hook, at the friction points. The follow-
ing holds true for all zones: For the intended use of
hoists it must be ensured that no rust is present at the
above-mentioned friction points and that material
combinations of the above-named light metals with
steel (exception being stainless steel) or cast iron are
not used in the working area of the hoists, at potential
friction, 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 of
aluminium. Therefore the installation position is to be
selected so as to ensure that there is no risk from
impact sparks.
C L E A N I N G P L A S T I C S U R FAC E S
Where JDN Air Hoists or JDN Air Winches feature plastic
parts, these surfaces must only be cleaned using a damp
cloth (cleaning cloth with water). This reduces electro-
static charging that can arise due to mechanical friction
at the plastic surface.
DA N G E R !
Electrostatic charging may occur at the
plastic surfaces, potentially leading to
electrostatic discharge that can ignite
gases and air mixtures.
E X P L O S I O N P RO T E C T I O N
powered by air !
P RO D U C T I N F O R M AT I O N
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Summary of Contents for JDN mini 1000
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