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ADDENDUM FOR "EX SAFETY" ASPECTS AND "IP" PROTECTION (EUROPE)
According to ATEX Directive (European Directive 94/9/EC of 23 March 1994) and relative European Standards which can
assure compliance with Essential Safety Requirements, i.e., EN 50014 (General requirements) EN 50018 (Flameproof enclosures
“d”) EN 50020 (Intrinsic safety “i”) EN 50284 (Equipments, group II, category 1G) EN 50281 (Apparatus for use with combustible
dusts), the pressure transmitters of the 2600T SERIES have been certified for the following group, categories, media of dangerous
atmosphere, temperature classes, types of protection. Examples of application are also shown below by simple sketches.
Note for pressure transmitter with ATEX combined approval
WARNING - Before installation of the Transmitter, the customer should permanent mark his choosen Protection
Concept on the safety label. The transmitter can only be used with according to this Protection Concept for the whole life.
The selected Type of Protection is allowed to be changed only by manufacturer after a new satisfactory assessment.
e) Certificate ATEX II 1 GD T50
°
C, EEx ia IIC T6 (-40
°
C
≤
Ta
≤
+40
°
C)
respectively, 1 GD T95
°
C, EEx ia IIC T4 (-40
°
C
≤
Ta
≤
+85
°
C)
and
ATEX II 1/2 GD T50
°
C, EEx ia IIC T6 (-40
°
C
≤
Ta
≤
+40
°
C)
respectively, 1/2 GD T95
°
C, EEx ia IIC T4 (-40
°
C
≤
Ta
≤
+85
°
C)
and
ATEX II 1/2 GD, EEx d IIC T6
IP67
T85
°
C
(-40
°
C
≤
Ta
≤
+75
°
C)
ZELM certificate number ZELM 04 ATEX 0202 X (for HART)
ZELM certificate number ZELM 04 ATEX 0216 X (for PROFIBUS PA and FOUNDATION Fieldbus)
(X = Special conditions for safe use)
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)
T50
°
C:
Maximum surface temperature of the transmitter enclosure with a Ta (ambient temperature)
+40
°
C for Dust (not Gas) with a dust layer up to 50 mm depth.
T95
°
C:
As before for Dust for a Ta +85
°
C
and for Flameproof protecion type:
T85
°
C:
Maximum surface temperature of the transmitter enclosure with a Ta (ambient temperature) +75
°
C
for Dust (not Gas) with a dust layer up to 50 mm depth.
(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:
EEx ia :
Intrinsic safety, protection level “a”
IIC :
Gas group
T6 :
Temperature class of the transmitter (which corresponds to 85
°
C max)
with a Ta (ambient temperature) +40
°
C
T4 :
Temperature class of the transmitter (which corresponds to 135
°
C max)
with a Ta (ambient temperature) +85
°
C
The other marking refers to the Flameproof protection type used according to relevant EN standards:
EEx d:
Flameproof
IIC :
Gas group
T6 :
Temperature class of the transmitter (which corresponds to 85
°
C max) with a Ta
(ambient temperature) +75
°
C.
About the applications of the transmitter see the relevant sketch.
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