Ex relevant specifications
62
TZIDC, TZIDC-110, TZIDC-120
CI/TZIDC/110/120-EN
7.3.5 IECEx
n
Electrical data for TZIDC-120 designated as Ex nA IIC T6 or T4 Gc
Signal circuit
(te11 / -12)
U = 9 ... 32 V DC
I = 11.5 mA
Mechanical digital feedback
(terminal 51 / -52 or 41 / -42)
U = 5 to 11 V DC
Plug-in module for shutdown contact input
(te51 / -52 or +85 / -86)
U = 20 ... 30 V DC
Special conditions
• Devices may 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. Comment: It is considered very
unlikely that a potentially explosive atmosphere would be present in zone 2 at the same time
that installation or maintenance/repair work was being carried out.
• Only non-flammable gases may be used for the pneumatic auxiliary power.
• Only use suitable cable entries which meet the requirements of IEC 60079-15.
• If the SJ2_S1N (NO) proximity switch is used, the positioner may only be operated at an
ambient temperature range from -25 ... 85 °C.
Содержание TZIDC
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