Siemens SITRANS TH100 Instrucciones De Servicio Resumidas página 20

TH400
Line resistance for correction is programmable
1)
For TH400: Determination of mean value, difference, or redundancy resistance in two-wire input, or 1 resistance in
2)
three-wire input
4.8.5 Thermocouple connections
Table 4-11 Thermocouple input options:
Cold junction
compensation/fixed
value
TH200/TH300
TR200/TR300
TH400
Line resistance for correction is programmable
1)
4.8.6 Voltage and current connection
Table 4-12 Voltage and current connections:
TH200/TH300
20
Two-wire
1)
Cold junction
compensation with
external Pt100 in
two-wire input
Voltage
Three-wire
Cold junction
compensation with
external Pt100 in
three-wire input
1)
Four-wire
Averaging/determination of difference with
internal cold junction compensation
1)
Current
Averaging/determination
of difference
1) 2)
with external cold
junction
SITRANS TH/TR/TF
A5E32363963-01, 06/2013