The Transducer Block
3.5 AI_Transducer Block Configuration Flowchart
SITRANS TH400 PROFIBUS® PA
14
Configuration Manual, 02/2007, A5E01039143-01
2c
RTD+Thermo-
couple?
2b
Set LIN_TYPE to TC
type (TC K etc.)
Set RJ_TYPE
(internal, external etc.)
Set
to dual sensor type
Set LIN_TYPE_2 to
RTD type (Pt100 etc.)
RJ_TYPE
external?
YES
YE S
2a
Error! (try again)
Resistance?
Set
to Ohm or kOhm
Set
to 2-,3-or 4-wire.
Dual sensor?
Enter wire resistance in
Ohms for both wires to
COMP_WIRE1
2-wire?
YES
Enter setup for sensor 2 :
YE S
Set LIN_TYPE_2 to
”no linearisation” or
”linearisation table”
Set
SENSOR_MEAS_TYPE
to single sensor type
Set LIN_TYPE to
”no linearisation” or
”linearisation table”
to dual sensor type
Enter wire resistance in
Ohms for both wires to
COMP_WIRE2
Millivolts?
Set
to V,mV or µV
Set LIN_TYPE to
”no linearisation” or
”linearisation table”
Dual sensor?
Set LIN_TYPE_2 to
”no linearisation” or
”linearisation table”
Set
SENSOR_MEAS_TYPE
to single sensor type
to dual sensor type
3b
3a
Enter set up for sensor 2:
YES
YES
YES
4-wire?
YES