WIKA T53 - Manual (Page 8)

GB
11178648.04 03/2010 GB/D/F/E
8 WIKA Operating Instructions Temperature Transmitter T53
2.3.1 Conditions for Model T53.10.0NI from type examination
certificate KEMA 06ATEX149 X
Zone 2 approval II 3 GD Ex nA [nL] IIC T4 ... T6
II 3 GD Ex nL IIC T4 ... T6
II 3 GD Ex nA [ic] IIC T4 ... T6
II 3 GD Ex ic IIC T4 ... T6
Entity parameters:
T53.10.0NI
Zone 2 Ex nL IIC/
Ex ic IIC
Zone 2 nA FNICO (FISCO)
U
i
32 VDC 32 VDC 17.5 VDC
L
i
1 µH 1 µH
C
i
2.0 nF 2.0 nF
T1 ... T4 T
a
≤ 85 °C T
a
≤ 85 °C T
a
≤ 85 °C
T5 T
a
≤ 75 °C T
a
≤ 75 °C T
a
≤ 75 °C
T6 T
a
≤ 60 °C T
a
≤ 60 °C T
a
≤ 60 °C
Sensor (terminal 3, 4, 5 and 6):
Uo : 5.7 VDC
Io : 8.4 mA
Po : 12 mW
Lo : 200 mH
Co : 40 µF
Specific conditions for safe use
For use in potentially explosive atmosphere of flammable gasses,
vapours or mists, the transmitter T53.10.0NI shall be mounted in an
enclosure providing a degree of protection of at least IP 54 in accord-
ance with EN 60 529.
For use in the presence of combustible dusts, the transmitter shall be
mounted in an enclosure providing a degree of protection of at least
IP 6X in accordance with EN 60 529. The surface temperature of the
enclosure shall be determined after installation of the transmitter.
2. Safety