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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 Controller. Also, do not touch the input terminals
(terminals 5 and 6 on the E5CC, terminals 1 and 2 on the E5CC-U, terminals 23 and 24 on the
E5EC/E5AC, or terminals 13 and 14 on the E5DC) or the compensating conductors.
z
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.
Additional Information
Connecting the Cold Junction Compensator
Correct process values cannot be obtained if you touch the contact ends of the compensating
conductor during calibration of a thermocouple. Accordingly, short-circuit (enable) or open
(disable) the tip of the thermocouple inside the cold junction compensator as shown in the figure
below to create a contact or non-contact state for the cold junction compensator.
Compensating conductors
−
−
−
Compensating conductors
Compensating conductors
+
STV
5
6
Input power supply
11
12
E5CC
Input power supply
+
STV
13
14
11
12
E5DC
E5EC/AC
Input power supply
+
1
2
23
STV
24
E5CC-U
Input power supply
+
10
11
2
STV
1
0
°
C/32
°
F
Cold junction
compensator
0
°
C/32
°
F
Cold junction
compensator
0
°
C/32
°
F
Cold junction
compensator
0
°
C/32
°
F
Cold junction
compensator
Compensating conductors
−
E5
@
C
0
°
C/32
°
F
0
°
C/32
°
F
Compensating conductor
Compensating conductor
Cold junction compensator
Cold junction compensator
Short-circuit
Open
E5
@
C
Содержание E5C series
Страница 2: ......
Страница 18: ...Conventions Used in This Manual 16 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 34: ...1 Introduction 1 10 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 98: ...3 Part Names and Basic Procedures 3 20 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 310: ...6 Parameters 6 94 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 326: ...7 User Calibration 7 16 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 364: ...A Appendices A 38 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 365: ...Index 1 E5 C Digital Temperature Controllers User s Manual H174 I Index ...
Страница 370: ...Index 6 E5 C Digital Temperature Controllers User s Manual H174 ...