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Transcript
+
Internal
amplifier
Thermocouple
TC0V
Thermocouple
Fig. 19: Floating thermocouple connections
If, however, the thermocouple is connected to an object which is grounded, then the connection shown in Fig.
20 should be used. Here, a connection is made between “0V” on the controller and a location near where the
thermocouple junction is attached to the remote object under measurement. This equalizes the grounds of
both the temperature controller and the object.
+
Internal
amplifier
TC-
Thermocouple
Remote
object under
measurement
N/C
0V
Thermocouple
Ground reference
Fig. 20: Remote grounded thermocouple connections
21
Remote
object under
measurement