ABB 2600T-Serie Bedienungsanleitung Seite 20

According to ATEX Directive (European Directive 94/9/EC of 23
March 1994) and relative Standards which can assure
compliance with Essential Safety Requirements, i.e., EN
60079-0 (General requirements) EN 60079-15 (Specification for
electrical apparatus with type of protection "n") EN 61241-0
(General requirements), 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.
d) Certificate ATEX II 3 G Ex nL IIC T4/T5/T6
(for T4 = -50°C ≤ Ta ≤+85°C),
(for T5 and T6 = -50°C ≤ Ta ≤+40°C) and II 3D Ex tD A22 IP67
T85°C. FM Approvals Certificate number
FM09ATEX0025X (Lenno products)
FM09ATEX0070X (Minden products)
FM11ATEX0037X (Faridabad products)
Important. It is the technical support for the ABB Declaration of
Conformity
Important. When installed this transmitter must be supplied by a
voltage limiting device which will prevent the rated voltage of 42 V
d.c. being exceeded.
Application for pressure transmitter Ex nL categories 3G and 3D
Application with Gas
Note: the transmitter must be connected to a supply with 42V
d.c. max output voltage as above indicated. The Ii of the trans-
mitter is less than 25 mA.
Important - Note for pressure transmitter with combined approval. Before installation of the Transmitter, the customer should permanent
mark his chosen Protection Concept on the safety label. The transmitter can only be used with according to this Protection Concept for the
whole life. If two or more types of protection box (on safety label) are permanent marked, the pressure transmitter must be removed from
hazardous classified locations. The selected Type of Protection is allowed to be changed only by manufacturer after a new satisfactory
assessment.
20 SOI/266-XC Rev. D | 2600T Series Pressure transmitters
Zone 2
266 Tx Category 3G Ex nL
The meaning of ATEX code is as follows:
— II : Group for surface areas (not mines)
— 3 : Category
— G : Gas (dangerous media)
— D : Dust (dangerous media) +40°C for Dust (not Gas) with
a dust layer up to 50 mm depth.
— T85°C: As before for Dust for a Ta +40°C
The other marking refers to the protection type used according
to the standards:
— Ex nL: Type of protection "n" with "energy limitation"
technique
— 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 2"
(Gas) and "Zone 22" (Dust) classified areas (unlikely/infrequent
hazard) as it is shown on the following sketches.
Application with Dust
Note: the protection is mainly assured by the "IP" degree
associated to the low power from supply.
7 Hazardous area considerations
Zone 22
266 Tx Category 3D IP6x
(Ex nL)