Omron CP1H-CPU - 05-2006 Operation Manual page 458

Temperature Sensor Units
Connecting Temperature
Sensors
Thermocouples
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.
Temperature input 0
Temperature input 1
CPM1A-TS002
Either K or J thermocouples can be connected, but all four of the thermocou-
ples must be of the same type and the same input range must be used for
each.
Temperature input 0
Temperature input 1
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
delivery. 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.
Input 0 Input 1
+ +
NC NC
Input 0 Input 1
Cold junction compensator
Input 0 Input 1
+ +
NC NC
Input 0 Input 1
Cold junction
compensator
Section 7-5
NC NC NC
NC NC NC
Input 2 Input 3
NC
+ +
NC
Input 2 Input 3
Temperature input 2
Temperature input 3
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