Thermocouple Calibration - Omron E5*C Series User Manual

7 User Calibration
7-3

Thermocouple Calibration

• Calibrate according to the type of thermocouple: thermocouple group 1 (input types 5, 7, 11, 12, 15,
19, and 20) and thermocouple group 2 (input types 6, 8, 9, 10, 13, 14, 16, 17, 18, 21, 22, 23, and 24).
• When calibrating, do not cover the bottom of the Digital Controller.
 Preparations
E5CC, E5CC-U, E5EC, E5AC, E5DC, E5DC-B, or E5GC
Input power supply
The terminal numbers are as follows:
• Input Terminals (Negative and Positive)
E5CC: 5 and 6
E5CC-U: 2 and 1
E5EC/E5AC: 23 and 24
E5DC: 13 and 14
E5DC-B: 15 and 16
E5GC: 11 and 12
• Input Power Supply (C and D)
E5CC: 11 and 12
E5CC-U: 10 and 11
E5EC/E5AC: 1 and 2
E5DC: 1 and 2
E5DC-B: 1 and 2
E5GC: 1 and 2
• Set the cold junction compensator designed for compensation of internal thermocouples to 0°C.
Make sure that internal thermocouples are disabled (i.e., that tips are open).
• In the above figure, STV indicates a standard DC current/voltage source.
• Use the compensating conductor designed for the selected thermocouple. When thermocouples R,
S, E, B, W, or PLII or an infrared temperature sensor is used, the cold junction compensator and the
compensating conductor can be substituted with the cold junction compensator and the
compensating conductor for thermocouple K.
7 - 4
STV
C
−
Cold junction
D
compensator
+
0°C/32°F
Compensating conductors
E5CC-B or E5EC-B
C
*
Input power supply
C'
D
*
D'
Common terminals are indicated with asterisks (*).
The terminal numbers are as follows:
• Input Terminals (Negative and Positive)
E5CC-B: 7 and 8
E5EC-B: 31 and 32
• Input Power Supply (C or C', and D or D')
E5CC-B: 13 or 14, and 15 or 16
E5EC-B: 1 or 2, and 3 or 4
E5@C Digital Temperature Controllers User's Manual (H174)
STV
−
Cold junction
compensator
+
0°C/32°F
Compensating conductors