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3-2
Section
Temperature Sensor Units
200
3-2-6 Connecting Temperature Sensors
CPM1A/CPM2A Temperature Sensor Units
CPM1A-TS001
Either K or J thermocouples can be connected, but both of the thermocouples
must be of the same type and the same input range must be used for each.
Input 0
+
Temperature input 0
Temperature input 1
Cold junction compensator
Input 1
+
NC
NC
NC
Input 0
–
Input 1
–
NC
NC
NC
NC
NC
CPM1A-TS002
Either K or J thermocouples can be connected, but all four of the thermocouples
must be of the same type and the same input range must be used for each.
Input 2
+
Input 3
+
Input 2
–
Input 3
–
Temperature
input 2
Temperature
input 3
Input 0
+
Temperature
input 0
Temperature
input 1
Cold junction
compensator
Input 1
+
Input 0
–
Input 1
–
NC
NC
NC
NC
Note
When using a Temperature Sensor Unit with a thermocouple input, observe the
following precautions:
•
Do not remove the cold junction compensator attached at the time of deliv-
ery. If the cold junction compensator is removed, the Unit will not be able to
measure temperatures correctly.
•
Each of the input circuits is calibrated with the cold junction compensator
attached to the Unit. If the Unit is used with the cold junction compensator
from other Units, the Unit will not be able to measure temperatures cor-
rectly.
•
Do not touch the cold junction compensator. Doing so may result in incor-
rect temperature measurement.
Thermocouples