Omron E5AN-H User Manual

286
Thermocouple Calibration (Thermocouple/Resistance Thermometer Input)
Section 6-3
6-3-1 Preparations
• Set the cold junction compensator designed for compensation of internal
thermocouples to 0°C. Make sure that internal thermocouples are dis-
abled (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 thermocou-
ple. When thermocouples R, S, E, B, W, or PLII is used, the cold junction
compensator and the compensating conductor can be substituted with
the cold junction compensator and the compensating conductor for ther-
mocouple K.
■ 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. Accord-
ingly, 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 con-
tact or non-contact state for the cold junction compensator.
E5CN-H
STV
0°C/32°F
4
5
9
10
−
+
Input power supply
Compensating conductor
Cold junction
compensator
E5AN/EN-H
STV
0°C/32°F
19
20
2
1
−
+
Input power supply
Compensating conductor
Cold junction
compensator
E5@N-H
0°C/32°F
0°C/32°F
Compensatin
g
conductor Compensatin
g
conductor
Cold junction compensator Cold junction compensator
Short-circuit
Open
E5@N-H

Omron E5AN-H Specifications

General

Brand	Omron
Model	E5AN-H
Category	Temperature Controller
Language	English