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Calculator: Thermocouple K/S/J


This tool converts the thermocouple's temperature to voltage, and vice versa.

Thermocouple's voltage depends on the temperature difference between thermocouple's hot and cold junctions. For the purpose of the calculation, we assume that cold junction's temperature is 0°C.

1. Determining thermocouple's voltage for specified temperature:
Type in the temperature value into the Temperature window.
The result can be read below, in the Voltage window.

2. Determining thermocouple's temperature for specified voltage:
Type in the voltage value into the Voltage window.
The result can be read below, in the Temperature window.



1.K-type thermocouple's voltage vs temperature (Tref = 0°C):

Temperature   °C     (-270°C ÷ 1372°C)
Voltage   µV     (-6 458µV ÷ 54 886µV)

2. K-type thermocouple's temperature vs voltage:

Voltage   µV     (-6 458µV ÷ 54 886µV)
Temperature   °C     (-270°C ÷ 1 372°C)

 

1. S-type thermocouple's voltage vs temperature (Tref = 0°C):

Temperature   °C     (-50°C ÷ 1 768°C)
Voltage   µV     (-236µV ÷ 18 693µV)

2. S-type thermocouple's temperature vs volatage:

Voltage   µV     (-236µV ÷ 18 693µV)
Temperature   °C     (-50°C ÷ 1 768°C)
1. J-type thermocouple's voltage vs temperature (Tref = 0°C):

Temperature   °C     (-210°C ÷ 1 200°C)
Voltage   µV     (-8 095µV ÷ 69 553µV)

2. J-type thermocouple's temperature vs voltage:

Voltage   µV     (-8 095µV ÷ 69 553µV)
Temperature   °C     (-210°C ÷ 1 200°C)

K type thermocouple

Chromel – Alumel thermocouple, ~40μV/K

S type thermocouple

(90% Pt + 10% Rh) – Pt thermocouple, ~11μV/K

J type thermocouple

Iron - Constantan thermocouple, ~51μV/K

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