42
2 6 6 H S H MODBUS TR A N S M IT TE R |
P R E SSU R E/ T EM P ER AT U R E M U LT I VA R I A B L E | O I/ 2 6 6 H SH M T- EN R E V. A
seconds and lower dip-switch 1 to 0 position. 266 can
reconfigure itself with the previous configured
parameters thanks to the auto-configuration
functionality.
9.6 Electronic upgrade from Standard to Advanced
HART
Attention. In case of electronic upgrade from Standard to
Advanced HART it is necessary to perform a full transmitter
reconfiguration since all customized data will be lost.
To upgrade the electronic module, proceed as follows:
1. Follow all points listed in the previous paragraph from
1 to 5.
2. Connect the larger flat to the new electronic which
have to feature dip-switches 1 and 2 in up position.
3. Connect the transmitter to power supply, wait ten
seconds and lower dip-switched 1 and 2.
10 Hazardous Area considerations
10.1 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 and II 1 D
Ex ia IIIC T85°C Da
FM Approvals certificate number
FM09ATEX0024X (Tremezzina, Minden, Bangalore and
Shangai 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.
Certificate IECEx Ex ia IIC T4/T5/T6 and Ex ia IIIC T85°C
Da
IECEx certificate number
IECEx FME 16.0003X (Tremezzina, Minden, 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
Application with Gas
Note: the transmitter must
be connected to a supply
(associated apparatus)
certified [Ex ia]
Zone 0
266 Tx Category 1Ga Ex ia
Application for pressure transmitter Ex ia categories
1Ga and 1Da
Application with Dust
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]
Zone 20
266 Tx Category 1Da IP6x Ex
ia
