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User manual for SECC Neoflux® auto-cleaning Cleanflow magnet
8
ATEX Markings (if applicable)
When the equipment is suitable for use in potentially explosive atmospheres (ATEX) the type plate will
feature an Ex Marking specifying the environment for which the equipment is suitable (gas or dust), the
specific device category and other criteria that the equipment satisfies.
•
Ex marking example dust:
II 1/2D Ex h T105°C Da/Db
•
Ex marking example gas:
II 1/2G Ex h IIB T4 Ga/Gb
Explanation:
II
explosion group (I is underground mining, II is other)
G/D
Type of ATEX environment G(as) or D(ust)
1/2D
Equipment Category (Ignition protection level: 1=very high, 2=high, 3 = normal)
or 1/2G
[inside device / outside device]
h
Type of Ex protection
c = constructional safety
t = protection by enclosure
h = non-electrical equipment (protection method not specified further)
T105°C
Maximum surface temperature for dust atmosphere
T4
Temperature class for gas atmosphere
IIB
Gas group where the equipment is suitable for
Da/Db
Equipment Protection Level (EPL).
or Ga/Gb
[Da inside device / Db outside device]
Ta
Ambient temperature range; only displayed when the range deviates
from the standard temperature range for ATEX of -
20 … +40°C
If the device is externally certified, then the ATEX certificate number is added to the type plate. Next to
the CE mark the identification number of the Notified Body that certified our ATEX quality assurance
system is displayed.
Dust
Gas
Equipment
category
1D
2D
3D
1G
2G
3G
Suited for ATEX
zone(s)
20 (21 & 22)
21 (22)
22
0 (1 & 2)
1(2)
2
Dust
Gas
EPL
Da
Db
Dc
Ga
Gb
Gc
Suited for ATEX
zone(s)
20 (21 & 22)
21 (22)
22
0 (1 & 2)
1(2)
2