Sensoray 7429 - Manual (Page 34)

DC voltage connections
There is no need for thermocouples to connect to the POWER+ or POWER- pins be-
cause thermocouples contain their own built-in power source (i.e., the Seebeck volt-
age).
Thermocouple wires are color coded to indicate polarity. The positive thermocouple
wire should always be connected to the SENSE+ pin, and the negative thermocouple
wire should always be connected to the SENSE- pin. The following table lists the wire
color coding for all 7429 supported thermocouple types.
TC Type Positive Negative
E purple red
J white red
K yellow red
T blue red
R black red
S black red
Thermocouple connections
Sense+
Sense-
+V
-V
Sense+
Sense- RED