364Ax-Gx Instruction Manual
58
Certificate
ATEX II 1G Ex ia IIC T6 and II 1/2G Ex ia IIC T6 and II 3G Ex nL IIC T6 and
II 1D Ex iaD 20 T85°C and II 1/2D Ex iaD 21 T85°C
respectively II 1/2G Ex d IIC T6 and II 1/2D Ex tD A21 IP67 T85°C and
II 3D Ex tD A22 IP67 T85°C
ZELM certificate number ZELM 06 ATEX 0302 X
For special conditions for safe use see certificate
The meaning of ATEX code is as follows:
II :
Group for surface areas (not mines)
1 :
Category
1/2 :
Category - It means that only a part of the transmitter complies with category 1 and a second
part complies with category 2 (see on application sketch)
G :
Gas (dangerous media)
D :
Dust (dangerous media)
T85°C:
Maximum surface temperature of the trans mitter enclosure with Ta (ambient temperature)
+75°C for Dust (not Gas) with a dust layer up to 5 mm. For application with dust layer
between 5 and 50 mm, maximum surface temperature must be consider according to IEC
61241-14 chapter 6.3.3.3.
(Note: the number close to the CE marking of the transmitter safety label identifies the Notified Body which
has responsibility for the surveillance of the production)
The other marking refers to the Intrinsic safety protection type used according to relevant EN standards:
Ex ia :
Intrinsic safety, protection level “a”
Ex iaD 20 :
Construction with inside intrinsic safety electronics suitable for Dust – Zone 20
Ex iaD 21 :
Construction with inside intrinsic safety electronics suitable for Dust – Zone 21
IIC :
Gas group
T6 :
Temperature class of the transmitter (which corresponds to 85° C max) with Ta (am bient
temperature) +40°C
The other marking refers to the Flameproof protection type used according to relevant EN standards:
Ex d:
Flameproof
Ex tD A21 :
Construction with flameproof of protection method suitable for Dust – Zone 21
Ex tD A22 :
Construction with flameproof of protection method suitable for Dust – Zone 22
IIC :
Gas group
T6 :
Temperature class of the transmitter (which corresponds to 85
°
C max) with Ta (am bient
temperature) +75
°
C.
About the applications of the transmitter see the relevant sketch.
