10
TZIDC, TZIDC-110, TZIDC-120
DIGITAL POSITIONER | CI/TZIDC/110/120-EN REV. E
… 2 Use in potentially explosive atmospheres
… TZIDC – Ex relevant specification
Special conditions
• 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
installation location (manufacturer's declaration or
certificate from an inspection authority).
• For the ‘digital feedback with proximity switches’ circuit,
external measures must be implemented to prevent the
rated voltage from being exceeded 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 may be used for the pneumatic
power supply
• Only suited cable entries must be used that meet the
requirements of EN 60079-15.
IECEx – ‘Ex i’ and ‘Ex n’ type of protection
Ex marking
Ex marking
Marking
Ex ia IIC T6 or T4 Gb
Ex ib IIC T6 or T4 Gb
Ex nA IIC T6 or T4 Gc
Type Examination Test Certificate
IECEx TUN 04.0015X
Shown as
5
Type
Intrinsic safety ‘I’ or
Type of protection ‘n’
Standards IEC
60079-0
IEC 60079-11
IEC 60079-15
Temperature Data
Temperature class
TaTZIDC Ex ia IIC resp. Ex ib IIC
Ambient
temperature
T4
−
40 to 85 °C
T6*
−
40 to 40 °C
* When using the ‘digital feedback’ plug-in module in temperature class
T6, the maximum permissible ambient temperature range is
−
40 to 35 °C.
Electrical Data
Electric data for TZIDC with Ex ia IIC or Ex ib IIC marking. In
‘intrinsic safety Ex ib IIC / Ex ia IIC’ type of protection, only for
connection to a certified intrinsically safe circuit.
Current circuit (terminal)
Electrical information (maximum values)
Signal circuit
(+11 /
−
12)
U
i
= 30 V
I
i
= 320 mA
P
i
= 1.1 W
C
i
= 6.6 nF
L
i
= negligibly small
Contact input
(+81 /
−
82)
U
i
= 30 V
I
i
= 320 mA
P
i
= 1.1 W
C
i
= 4.2 nF
L
i
= negligibly small
Switch output
(+83 /
−
84)
U
i
= 30 V
I
i
= 320 mA
P
i
= 500 mW
C
i
= 4.2 nF
L
i
= negligibly small
Local communication
interface (LCI)
Only for connection to a
programming device outside of the
hazardous area.
(See special conditions).
