Atex - 'Ex N' Type Of Protection - ABB TZIDC Commissioning Instruction

TZIDC, TZIDC-110, TZIDC-120 DIGITAL POSITIONER | CI/TZIDC/110/120-EN REV. E
Special conditions
• The local communication interface (LCI) may only be
operated at Um ≤ 30 V DC outside the hazardous area.
• Variants that, according to declarations, also meet the
requirements for the 'flameproof enclosure' type of
protection may no longer be used as 'intrinsically safe' if they
have been previously used as a flameproof type of protection
• When used with gases from group IIA and a temperature
class of T1 for power supply, the TZIDC positioner may only
be used outdoors or inside sufficiently ventilated buildings.
• The gas supplied must be kept sufficiently free of air and
oxygen to prevent an ignitable atmosphere from forming.
• The equipment may only be used as a II 2 D type device in
areas where the level of mechanical hazard is 'low'.
• Cable entries that meet the requirements of EN 61241-11 for
Category II 2 D as well as the ambient temperature range
must be used.
• Prevent electrostatic charging due to propagating brush
discharge when the equipment is used for applications
involving combustible dust.
ATEX – 'Ex n' type of protection
Ex marking
Ex marking
Marking
Type Examination Test Certificate
Type
Device class
Standards
Temperature Data
Device group II 3 G
Temperature class
T4
T6
Electrical Data
Current circuit (terminal)
Signal circuit
(+11 / −12)
Contact input
(+81 / −82)
Switch output
(+83 / −84)
Mechanical digital feedback
(Limit1: +51 / −52)
(Limit2: +41 / −42)
Plug-in module for digital position
feedback
(+51 / −52)
(+41 / −42)
Plug-in module for analog position
feedback
(+31 / −32)
9
II 3 G Ex nA IIC T6 or T4 Gc
TÜV 02 ATEX 1943 X
'n' type of protection
II 3 G
EN 60079-15
EN 60079-0
Ambient temperature Ta
−40 to 85 °C
−40 to 50 °C
System bus, computer interfaces
U = 9.7 V DC
I = 4 to 20 mA, max. 21.5 mA
U = 12 to 24 V DC; 4 mA
U = 11 V DC
U = 5 to 11 V DC
U = 5 to 11 V DC
U = 10 to 30 V DC
I = 4 to 20 mA, max. 21.5 mA