7 User Calibration
7 - 4
E5@C Digital Temperature Controllers User’s Manual (H174)
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
• 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.
Compensating conductors
Compensating conductors
0°C/32°F
Cold junction
compensator
−
+
STV
Input power supply
C
D
C
D
C'
D'
E5CC, E5CC-U, E5EC, E5AC, E5DC, E5DC-B, or E5GC
E5CC-B or E5EC-B
Input power supply
+
STV
−
*
*
Common terminals are indicated with asterisks (*).
0°C/32°F
Cold junction
compensator
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
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
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