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Intrinsic safety DIN EN 50020/IEC 60079-11
TH01-Ex, TH101-Ex
EC type examination certificate PTB 03 ATEX 2083 X
Identification according to directive 94/9/EC
Indentification of ignition protection class: EEx [ia] ib IIC T6
2.1
Temperature transmitter TH01-Ex
Fitting the TH01-Ex
Fig. 2-1 Fitting the TH01-Ex
Wiring diagram for TH01-Ex
ib*
+
Us = 9...29,4 V DC
(reverse polarity
protection)
Fig. 2-2 Wiring diagram for TH01-Ex
a) Resistance thermometer, 2-wire circuit
b) Resistance thermometer, 3-wire circuit
c) Resistance thermometer, 4-wire circuit
d) Potentiometer input (2-wire circuit)
14
Safety instructions for electrical apparatus certified for use in explosion hazardous areas 3KDE115000R4899
Explosion hazardous area
Sensor
Zone 0 or
Zone 1
* ia power supply is possible instead of ib, but not necessary.
Us = power supply
* ia power supply is possible instead of ib, but not necessary.
II 2 (1) G
Zone 1
2
4
2
4
+
ia
ib
ia
ib
3
1
3
1
1
1
1
1
3
3
3
3
ϑ
ϑ
4
4
4
4
2
2
2
2
a)
b)
c)
e) Potentiometer input (3-wire circuit)
f) Potentiometer input (4-wire circuit)
g) Thermocouple
h) Voltage meter
Safe area
TH01-Ex
9...29,4 V DC
+
+
Potential equalization
1
1
1
3
3
3
ϑ
4
4
4
2
2
2
d)
e)
f)
ib *
1
1
3
3
g)
h)
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