ABB 2600T Series Instruction Manual page 131

2 6 0 0 T S E R I E S | P R E S S U R E T R A N S M I T T E R S | O I/ 2 6 6/ F F - E N R E V. E
13 Hazardous Area considerations
Ex Safety aspects and IP Protection (Europe)
According to ATEX Directive (European Directive 2014/34/EU
and relative European Standards which can assure compliance
with Essential Safety Requirements, i.e., EN 60079-0 (General
requirements) EN 60079-1 (Flameproof enclosures "d"),
EN 60079-11 (Equipment protection by intrinsic safety "i"), 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.
a) Certificate ATEX II 1 G Ex ia IIC T4/T5/T6 Ga - FISCO
FM Approvals certificate number FM09ATEX0024X
(Tremezzina, Warminster, Bangalore and Shanghai products)
The meaning of ATEX code is as follows:
• II : Group for surface areas (not mines)
• 1 : Category
• G : Gas (dangerous media)
• D: Dust (dangerous media)
• T85°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.
Application for pressure transmitter Ex ia categories 1 Ga and 1 Da
Application with Gas
Zone 0
266 Tx Category 1 G Ex ia
Note: the transmitter must
be connected to a supply
(associated apparatus)
certified [Ex ia]
Certificate IECEx Ex ia IIC T4/T5/T6 Ga/Gb and
Ex ia IIIC T85°C Da - FISCO IECEx certificate number
IECEx FME 16.0003X (Tremezzina, Warminster, Bangalore,
Shanghai products).
IMPORTANT
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 protection type used according
to relevant EN standards:
• Ex ia: Intrinsic safety, protection level "a"
• IIC: Gas group
• T4: Temperature class of the transmitter (corresponding to
135°C max) with a Ta from -50°C to +85°C
• T5: Temperature class of the transmitter (corresponding to
100°C max) with a Ta from -50°C to +40°C
• T6: Temperature class of the transmitter (corresponding to
85°C max) with a Ta from -50°C to +40°C
About the applications, this transmitter can be used in "Zone 0"
(Gas) and "Zone 20" (Dust) classified areas (continuous hazard)
as it is shown on the following sketches.
Application with Dust
Zone 20
266 Tx Category 1 DIP6x Ex ia
Note: the protection is mainly
assured by the "IP" degree
associated to the low power
from supply. This can either be
[ia] or [ib] certified [Ex ia]
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