ABB HART TTF350 Commissioning Instructions page 48

Electrical connection
Thermocouples/Voltages
Fig. 6
9 2 x voltage measurement (sensor backup/redundancy, sensor drift monitoring, average value or differential temperature measurement)
10 Voltage measurement
11 2 x thermocouple (sensor backup/redundancy, sensor drift monitoring, average value or differential temperature measurement)
12 Thermocouple
RTD/thermocouples configuration
Fig. 7
13 1 x RTD, 4-wire circuit and thermocouple (sensor backup/redundancy, sensor drift monitoring, average value or differential temperature
measurement)
14 1 x RTD, 3-wire circuit and thermocouple (sensor backup/redundancy, sensor drift monitoring, average value or differential temperature
measurement)
15 1 x RTD, 2-wire circuit and thermocouple (sensor backup/redundancy, sensor drift monitoring, average value or differential temperature
measurement)
16 - EN
9 10 11
1 1
1K 1K
2 2
5 5
2K
2K
6 6
13 14 15
1 1 1
2 2
ϑ
ϑ ϑ
3 3 3
4
5 5 5
6 6 6
12
1 1
1
2
2 2
3
4
5
6
1
2
3
4
5
6
TTF350
-
A00189
-
A00190
CI/TTF350-X1