J. D. NEUHAUS Profi 025Ti, Operation Manual

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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 for the test-
ing of devices and protection systems for intended use
in explosion-hazardous areas.
B A S I C E X P L O S I O N P RO T E C T I O N F O R T H E
S TA N DA R D V E R S I O N S
Standard version JDN air hoists are category 2 devices
(Guideline 94/9/EC, DIN EN 1127-1
2
), for use in zone 1
and 2 for gases of explosion group IIA. (See also IEC
60079-12
3
and IEC 60079-20
4
.) These devices are also
suitable for use in zone 2, in the presence of gases of
explosion group IIB, provided that the substances
hydrogen sulphide and ethylene oxide can be excluded
and additionally in zones 21 and 22 for dusts with glow
temperatures above 210°C or ignition temperatures
above 202°C, provided that no light metal or other
impact-sensitive dusts are present.
These devices are designated by:
II 2 GD IIA T4(X)/II 3 GD IIB T4(X)
Additional marking “X”, see page 10.
J D N H O I S T S
“W I T H I N C R E A S E D S PA R K P RO T E C T I O N ”
JDN hoists in the “with increased spark protection”
version (FS) fulfil further explosion protection require-
ments. With the exception of carbon disulphide (tem-
perature class T6), they can be used in the presence of
all gases in zones 1 and 2 and dusts with glow tempera-
tures above 210° or ignition temperatures above 202°
in zones 21 and 22, and can be designated with
II 2 GD IIC T4(X) for installation in a trolley,
depending upon the trolley version (see below), but
also with
II 2 GD IIB T4(X) . For further operating
conditions, see Instructions for safe operation (Notes
and
).
JDN HOIS T S FOR USE IN THE PRESENCE OF TEM-
PER ATURE CL ASS T6 GASES OR EXTREMELY EXPLO-
SIVE DUS T S
Following separate tests, especially with regard to
ambient temperatures and type of operation, use in the
presence of carbon disulphide or dusts with particularly
low glow or ignition temperatures may be possible with
designation
II 2 GD IIC T6(X) , which includes the
additional marking “X” for special conditions (see
Additional marking “X”).
Please contact us with regard to these requirements.
S TA N DA R D J D N T RO L L E Y A N D C R A N E
R U N N I N G G E A R
JDN trolleys and cranes can be used in zone 2 with
standard running wheels (made of steel or cast metal)
with all dusts and the presence of gases up to explosion
group IIC. Due to the low running speeds, the possible
friction velocities on the running wheels are less than 1
m/s, which means that standard running wheels can
also be used in zone 1 up to explosion group IIB. The
highest possible designation for these devices is:
II 2 GD IIB T4(X)/II 3 GD IIC T4(X)
.
Depending on the hoist version, designations
II 2 GD IIA T4(X)/II 3 GD IIB T4(X) or
II 2 GD IIB T4(X) are also used.
J D N T RO L L E Y A N D C R A N E R U N N I N G G E A R
“W I T H I N C R E A S E D S PA R K P RO T E C T I O N ”
For use in zone 1 in the presence of gases in explosion
group IIC, bronzed running wheels or running wheels
made of bronze are also used. The highest possible
designation for this version (FSR) is
II 2 GD IIC T4(X) (the same as for JDN hoists
“with increased spark protection”).
J D N T RO L L E Y A N D C R A N E R U N N I N G G E A R F O R
U S E I N T H E P R E S E N C E O F T E M P E R AT U R E C L A S S
T 6 G A S E S O R D U S T S
As is the case with JDN hoists “with increased spark
protection”, temperature class T6 could also be possible
in this case too in the event of a special investigation
of applicability, so that the highest possible designation
for standard wheels and for bronzed or bronze wheels is
II 2 GD IIB T6(X)/II 3 GD IIC T6(X) and
II 2 GD IIC T6(X) respectively, i.e. each including
the additional designation “X” for special conditions.
E D
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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