WIKA T53 - Manual (Page 10)

GB
11178648.04 03/2010 GB/D/F/E
10 WIKA Operating Instructions Temperature Transmitter T53
T53.10.0IS
Class I, Zone O, Ex ia IIC or Ex iaD, FISCO
P o < 0.84 W P o < 1.3 W FISCO systems FISCO systems
U
i
30 VDC 30 VDC 17.5 VDC 15 VDC
l
i
120 mA DC 300 mA DC 250 mA DC
P
i
0.84 W 1.3 W 2.0 W
L
i
1 µH 1 µH 1 µH 1 µH
C
i
2.0 nF 2.0 nF 2.0 nF 2.0 nF
T1 ... T4 T
a
≤ 85 °C T
a
≤ 75 °C T
a
≤ 85 °C T
a
≤ 85 °C
T5 T
a
≤ 70 °C T
a
≤ 65 °C T
a
≤ 60 °C T
a
≤ 60 °C
T6 T
a
≤ 60 °C T
a
≤ 45 °C T
a
≤ 45 °C T
a
≤ 45 °C
T53.10.0IS
Class I, Zone 1, Ex ib IIC, FISCO
P o < 0.84 W FISCO systems
U
i
30 VDC 17.5 VDC
l
i
250 mA DC
P
i
5.32 W
L
i
1 µH 1 µH
C
i
2.0 nF 2.0 nF
T1 ... T4 T
a
≤ 85 °C T
a
≤ 85 °C
T5 T
a
≤ 75 °C T
a
≤ 75 °C
T6 T
a
≤ 60 °C T
a
≤ 60 °C
Installation instructions
The sensor circuit is not infallibly galvanically isolated from the Field-
bus input circuit. However, the galvanic isolation between the circuits
is capable of withstanding a test voltage of AC 500 V during 1 minute.
In a potentially explosive gas atmosphere, the transmitter shall be
mounted in an enclosure in order to provide a degree of protection of
at least IP 20 according to EN 60 529.
2. Safety