ABB 2600T Series Instruction Manual page 134

134 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
d) Certificate ATEX II 3 G Ex ic IIC T4/T5/T6 Gc and
II 3 D Ex tc IIIC T85°C Dc, Ta = -50°C to +75°C
FM Approvals Certificate number FM09ATEX0025X
(Tremezzina, Warminster, Bangalore and Shanghai products)
The meaning of Atex code is as follows :
• II: Group for surface areas (not mines)
• 3: Category of equipment
• G: Gas (dangerous media)
• D: Dust (dangerous media)
• T85°C: Maximum surface temperature of the transmitter
enclosure with a Ta from -50°C to +40°C for Dust (not Gas).
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 32 V d.c. being exceeded.
Application for pressure transmitter Ex ic categories 3 Gc and 3 Dc
Application with Gas
IMPORTANT
Note for pressure transmitter with combined approval. Before installation of the Transmitter, the customer should permanently
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.
Zone 2
266 Tx Category 3 G Ex ic
Note: the transmitter
must be connected to a
supply with 32 V d.c. max
output voltage as above
indicated.
Certificate IECEx Ex ic IIC T4/T5/T6 Gc and
Ex tc IIIC T85°C Dc, Ta = -50°C to +75°C
IECEx certificate number IECEx FME 16.0004X (Tremezzina,
Warminster, Bangalore and Shanghai products)
The other marking refers to the protection type used according
to relevant EN standards:
• Ex ic: Intrinsic safety, protection level "c"
• IIC: gas group
• T4: Temperature class of the transmitter (which corresponds
to 135°C max) with a Ta from -50°C to +85°C
• T5: Temperature class of the transmitter (which corresponds
to 100°C max) with a Ta from -50°C to +40°C
• T6: Temperature class of the transmitter (which corresponds
to 85°C max) with a Ta from -50°C to +40°C
• Ex tc: type of protection "tc" means protection by enclosure
technique
About the applications, this transmitter can be used in Zone 2
(Gas) and in Zone 22 (Dust) (unlikely/infrequent hazard) as it
shown on the following sketches..
Application with Dust
Zone 22
266 Tx Category 3 D IP6x Ex tc
Note: the protection is
mainly assured by the "IP"
degree associated to the
low power from supply.