Electrical connection
20 TTF350
OI/TTF350-EN
5.5
Terminal connection diagrams
RTD resistance sensors
6
6
5
4
3
2
1
PA
+
-
PA
4
5
4
4
6
2
2
2
2
3
3
3
3
3
3
3
3
4
1
1
1
1
1
1
1
1
2
1
1
…
30(Ex)
42
VDC
/
4
…2
0m
A
1
2
3
4
5
6
7
8
A00188
+
-
ϑϑ
ϑ
ϑ
ϑ
ϑ
ϑ
ϑ
4
3
1
2
5
6
Fig. 7
Potentiometer: 0 … 500
Ω
or 0 … 5000
Ω
1
Potentiometer, 4-wire circuit
2
Potentiometer, 3-wire circuit
3
Potentiometer, 2-wire circuit
4
2 x RTD, 3-wire circuit (sensor backup/redundancy, sensor drift monitoring, average value or differential temperature measurement)
5
2 x RTD, 2-wire circuit (sensor backup/redundancy, sensor drift monitoring, average value or differential temperature measurement)
6
RTD, 4-wire circuit
7
RTD, 3-wire circuit
8
RTD, 2-wire circuit
