Resistance thermometer
Resistance
Thermocouple
Voltage measurement
Two-wire system
1)
Three-wire system
Four-wire system
Two-wire system
1)
Three-wire system
Four-wire system
Internal
cold junction compensation
Cold junction compensation
with external Pt100 in two-wire system
1)
Cold junction compensation
with external Pt100 in three-wire system
1)
Programmable line resistance for the purpose of correction.
Mean-value/differential or
redundancy generation
1 sensor in two-wire system
1)
1 sensor in three-wire system
Mean-value/differential or
redundancy generation
2 x two-wire system
1)
Mean value, differential or
redundancy generation with internal
cold junction compensation
Mean value, differential or
redundancy generation and
cold junction compensation
with internal Pt100
in two-wire system
1)
Mean value, differential or redundancy generation
1 resistor in two-wire system
1)
1 resistor in three-wire system
Measurement of mean value, differential and
redundancy with 2 voltage sources
One voltage source
1
2
1
2
+
-
+
-
+
-
1
2
+
-
1
2
+
-
+
-
2
1
+
-
+
-
1
2
+
-
+
-
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