Iecex - 'Ex I' Type Of Protection - ABB TZIDC-200 Operating Instruction

14 TZIDC-200, TZIDC-210, TZIDC-220 DIGITAL POSITIONER | 42/18-85-EN REV. E
... 2 Use in potentially explosive atmospheres
... TZIDC-210 – Ex relevant specification
IECEx – 'Ex i' type of protection
Ex marking
Marking
Type Examination Test Certificate
Shown as
Type
Standards
Temperature Data
Temperature class
T4
T6*
* When using the plug−in module for 'Digital Feedback' in Temperature Class
T6,the maximum permissible ambient temperature range is −40 to 35 °C
(−40 to 95 °F).
Electrical data for ia/ib/ic for groups IIB/IIC
With the intrinsically safe Ex i IIC type of ignition protection, only
for connection to a certified FISCO power supply unit or a
barrier, i.e., a power supply unit with maximum values according
to the following table
Current circuit (terminal)
Signal circuit
(+11 / −12)
Ex ia IIC T6 or T4 Gb
IECEx TUN 04.0015X
TZIDC-210
IEC 60079-0
IEC 60079-11
Ambient temperature Ta
−40 to 85 °C
−40 to 40 °C*
Electrical information (maximum values)
U = 24 V
i
I = 250 mA L
i
P = 1.2 W Characteristic curve =
i
Special conditions
• The local communication interface (LCI) may only be
operated at U
atmosphere.
• Devices must only be connected to circuits in zone 2 if they
are suitable for operation in zone 2 potentially explosive
atmospheres and for the conditions prevailing at the
5
installation location (manufacturer's declaration or
certificate from an inspection authority).
• For the 'Mechanical digital feedback' circuit, measures
outside of the device must be implemented to prevent the
rated voltage from being up-scaled by more than 40 % due
to 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 suited cable entries must be used that meet the
requirements of EN 60079-15.
C < 5 nF
i
< 10 μH
i
linear
≤ 30 V GS outside the potentially explosive
m