Temperature measurement with thermocouples:
The temperature must
be controlled in many industrial and experimental processes.
Among many methods of measurement,
the thermocouples are frequently used.
They cover a temperature rang
from –250°C to more than 2000°C.
A thermocouple is composed by
two metallic conductors with different thermoelectrical characteristics.
The connector implement the electrical
connection between both the wires of a thermocouple and the compensation cable.
|
Temperature range (°C) |
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|
Designation |
Polarity |
Composition |
Material |
Temperature range |
|
K |
+ |
Chromel |
Nickel-Chrome Nickel-Aluminium |
-40 to + 1000 |
|
T |
+ |
Copper |
Copper Copper/Nickel |
-40 to + 350 |
|
J |
+ |
Iron |
Iron |
-40 to + 750 |
|
S |
+ |
Platinum |
Copper |
0 to + 1600 |
|
The material used for thermocouple contacts (class 1) is in accordance with the norm (DIN)-IEC 584. As these connectors are supplied without contacts, please refer page30 to order your contacts for thermocouples (in bags). |
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