Iecex - 'Ex Na' And 'Ex Ec' Type Of Protection - ABB TZIDC-110 Operating Instruction

TZIDC-110, TZIDC-120 DIGITAL POSITIONER | OI/TZIDC-110/TZIDC-120-EN REV. H
IECEx – 'Ex na' and 'Ex ec' type of protection
Ex-marking
IECEx Ex ec
Marking Ex ec IIC T6 resp. T4...T1 Gc
Type Examination Test
IECEx TUN 04.0015X
Certificate
Type Increased safy „e"
Standards IEC 60079-0, IEC 60079-7
IECEx Ex nA
Marking Ex nA IIC T6 resp. T4...T1 Gc
Type Examination Test
IECEx TUN 04.0015X
Certificate
Type Type of protection „n"
Standards IEC 60079-0, IEC 60079-15
Temperature data
Temperature class Ambient temperature Ta
T4 to T1 −40 to 85 °C
T6 −40 to 50 °C
Electric Data
Current circuit (terminal) Electrical information (maximum values)
Signal circuit U = 9 to 32 V DC
(+11 / −12) I = 10.5 mA
Feedback on the actuator For maximum values, see EU-Type examination
position using proximity certificate PTB 00 ATEX 2049 X Pepperl & Fuchs
switches, Type 2 proximity switches
(Pepperl & Fuchs SJ2-SN)
(Limit1: +51 / −52),
(Limit2: +41 / −42)
Local communication Only for connection to a programming device
interface (LCI) using an ABB LCI adapter (Um ≤ 30 V DC) outside
the hazardous area.
Special conditions
In the case of TZIDC-110, TZIDC-120, the following shall apply for
safe use in the Ex 'ec IIC' type of protection:
• Only devices that are suited for operation in hazardous
areas of Zone 2 and the conditions prevailing at the place
of use may be connected to circuits in Zone 2
(manufacturer's declaration or certificate from the test
center).
• For the 'Mechanical digital feedback with Pepperl & Fuchs
SJ2-SN proximity switches' circuit, external measures
must be implemented outside of the device to prevent
the rated voltage from being up-scaled by more than
40 % in the event of transient disturbances.
• It is only permissible to connect, disconnect, and switch
live circuits during installation or maintenance, or for the
purpose of carrying out repairs.
Note
It is considered very unlikely that a potentially hazardous
atmosphere would be present in Zone 2 at the same time
that installation or maintenance or repair work was being
carried out.
• Only non-flammable gases must be used for pneumatic
power supply.
• Only cable entries may be used that suit the requirements
of EN 60079-7 or EN 60079-15.
13