Chapter 5 Thermocouple Input Module (XBF-TC04S,TC04B)
(3) Thermocouple T (JIS C1602-1995): -200
(-5603
) ~ 400
(20872
)
(4) Thermocouple R (JIS C1602-1995): 0
(0
) ~ 1700
(20222
)
Thermocouple characteristics: thermocouple sensor measures temperature by using fine voltage
(electromotive force), which occurs when applying temperature gradient to a junction between two
different metals.
The temperature-electromotive force relation specification of normal thermocouple sensor provides
the electromotive force, which is measured when a sensor’s measuring point is at O℃. On that
account, when measuring temperature by using thermocouple sensor, cold junction compensation
(reference junction compensation, RJC) is used. (built-in function of temperature measuring module).
Remark
5 - 9
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