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2.2
Temperature transmitter TH101-Ex
Fitting the TH101-Ex
Sensor
Zone 0 or
Zone 1
Fig. 2-3 Fitting the TH101-Ex
Wiring diagram for TH101-Ex
Kanal 2
Us = 9...29,4 V DC
(optional)
4...20 mA
(verpolungssicher)
Us
ib* +
Us = 9...29,4 V DC
(verpolungssicher)
Us
ib*
+
Kanal 1
Fig. 2-4 Fitting the TH101-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)
3KDE115000R4899
Safety instructions for electrical apparatus certified for use in explosion hazardous areas
Explosion hazardous area
Zone 1
* ia power supply is possible instead of ib, but not necessary.
Kanal 1
11
12 13 14
21 22 22 24
ABB
TH101-Ex
PTB 03 ATEX 2083 X
II 2 (1) G EEx [ia] ib IIC T6
TA<=50 °C
Ex
Elektr. Daten siehe
EG-Baumusterprüfbesch.
Kanal 1:
Kanal 2
PT 100-3L 0..100 °C
Kanal 2:
(optional)
PT 100-3L 0..100 °C
41
42
31 32
42
41
32
31
4...20 mA
Channel 1 terminal assignment is used for the single-channel version
Us = power supply
Elektr. Daten siehe EG-Baumusterprüfbesch. = For electrical data, see EU prototype test certificate
* ia power supply is possible instead of ib
TH101-Ex
Channel 1
optional
Channel 2
ia
ia
ib
ib
Channel 1
Channel 2
Channels 1 and 2 are
electrically isolated from each other
11
11
11
11
12
12
12
12
ϑ
ϑ
13
13
13
13
14
14
14
14
21
21
21
21
22
22
22
22
ϑ
ϑ
23
23
23
23
24
24
24
24
a)
b)
c)
e) Potentiometer input (3-wire circuit)
f) Potentiometer input (4-wire circuit)
g) Thermocouple
h) Voltage meter
Safe area
optional
ib*
9...29,4 V DC
+
optional
9...29,4 V DC
+
ib *
Potential equalization
11
11
11
11
12
12
12
12
ϑ
13
13
13
14
14
14
21
21
21
21
22
22
22
22
ϑ
23
23
23
24
24
24
d)
e)
f)
f)
g)
g)
11
12
21
22
h)
h)
15
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