Atto/Natto Series Page 28

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 250C to more than 2000C.
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)

Designation

Polarity

Composition

Material

Temperature range

K

+
-

Chromel
Alumel

Nickel-Chrome

Nickel-Aluminium

-40 to + 1000

T

+
-

Copper
Constantan

Copper

Copper/Nickel

-40 to + 350

J

+
-

Iron
Constantan

Iron
Copper/Nickell

-40 to + 750

S

+
-

Platinum

Copper
Copper/Nickel Type S

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).