ABB 2600T Serie Bedienungsanleitung Seite 19

c) Certificate ATEX II 1/2 G Ex d IIC T6
ATEX II 1/2 D Ex tD A21 IP67 T85°C (-50°C ≤ Ta ≤+75°C)
FM Approvals Certificate number
FM09ATEX0023X (Tremezzina products)
FM09ATEX0068X (Minden products)
FM11ATEX0036X (Bangalore products)
FM11ATEX0047X (Shanghai products)
The meaning of ATEX code is as follows:
− II: Group for surface areas (not mines)
− 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 next application sketch).
− G: Gas (dangerous media)
− D: Dust (dangerous media)
− 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.
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.
Application for pressure transmitter Ex d categories 1/2G and 1/2D
Application with Gas
Tank
Zone "0"
Dangerous
medium
(process)
IP code
About the degree of protection provided by the enclosure of the pressure transmitter, the 2600T SERIES has been certified IP67 according to
EN 60529 standard. The first characteristic numeral indicates the protection of the inside electronics against ingress of solid foreign objects
including dusts.
The assigned "6" means an enclosure dust-tight (no ingress of dust).
The second characteristic numeral indicates the protection of the inside electronics against ingress of water.
The assigned "7" means an enclosure water-protected against a temporary immersion in water under standardized conditions of pressure and
time.
18 SOI/266-XC Rev. J | 2600T Series Pressure transmitters
Zone "1"
Primary transducer
266 Tx
Category
1/2 G Ex d
Zone "0" / Zone "1"
separation element
Certificate IECEx Ex d IIC T6, Ex tD A21 T85°C, Ta= -50°C to +75°C
IECEx certificate number
IECEx FME 09.0002X (Tremezzina and Minden products)
IECEx FMG 11.0018X (Shanghai products)
The other marking refers to the protection type used according to
relevant EN Standards:
− Ex d: Explosion proof
− IIC: Gas group
− T6: Temperature class of the transmitter
(corresponding to 85°C max) with a Ta from -50°C to +75°C
About the applications, this transmitter can be used in Zone "0" (Gas)
classified areas (continuous hazard) with its "process part" only,
whereas the remaining part of the transmitter, i.e. its enclosure, can be
used in Zone 1 (Gas), only (see sketch below). Reason of this is the
process part of the transmitter (normally called primary transducer)
that provides inside separation elements to seal off the electrical
sensor from the continuously hazardous process, according to the
EN 60079-26 and EN 60079-1.
About Dust application, the transmitter is suitable for "Zone 21"
according to the EN 61241-1 as it is shown on the relevant part of the
sketches.
Application with Dust
Silo
Zone "20"
Dangerous
medium
(process)
7 Hazardous area considerations
Zone "21"
266 Tx
Category
1/2 D Ex d