High-temperature thermocouple cables/ compensating cables for 500°C

0,00

Types K and E with ceramic insulation KD500

 

Illustration:

1 Ladder

2 Ceramic insulation

 

These thermal and compensating cables are made of two ceramic-coated wires.

Its outstanding features are:

  • Extremely high temperature resistance
  • Miniaturised sizes
  • Greatly reduced weight
Art.-Nr.

Applications

These wires are used in many high-tech applications and research projects in aerospace, nuclear technology and sensor technology, where temperatures have to be measured in closed environments and in extreme heat.

 

Properties

Thermal: Continuous temperature -90°C to +500°C
800°C for at least 240h

Peak temperature 1000°C

Nickel migration: Above temperatures of > 315°C, the cables may be subject to nickel migration after prolonged use and thus experience an increase in maximum resistance.

Chemical: Excellent resistance in chemical environments (standard and organic solvents). Poor resistance to moisture.

Electrical: Test voltage (1 min) 150V AC / 212V DC

Radiation resistance: Can be exposed to neutrons or gamma rays for long periods without changing the mechanical resistance of the insulation.

Flame retardancy: Completely incombustible. From > 1000°C the wires can melt but not burn.

Colour: Grey

Outgassing: Weak

Halogen-free: Yes

 

Structure

Type Number x conductor diameter AWG Nenn-
durchmesser
Gewicht

g/km

Länge

m/kg

Type K 2 x 0,20 mm 2 x AWG 32 0,44 mm 286 3500
Type K 2 x 0,32 mm 2 x AWG28 0,68 mm 637 1570
Type K 2 x 0,50 mm 2 x AWG 24 1,04 mm 1754 570
Type E 2 x 0,20 mm 2 x AWG 32 0,44 mm 286 3500
Type E 2 x 0,30 mm 2 x AWG 28 0,68 mm 637 1570

 

Other types on request.

 

EMK Type K

Temperature EMF Tolerance
Class 1 (KX1) Class 2 (KX2)
0°C 0 µV ±60 µV ±100 µV
100°C 4.095 µV ±60 µV ±100 µV
200°C 8.137 µV ±60 µV ±100 µV
400°C 16.395 µV ±60 µV ±100 µV

 

EMK Type E

Temperature EMF Tolerance
Class 1 (KX1) Class 2 (KX2)
0°C 0 µV ±120 µV ±200 µV
100°C 6.319 µV ±120 µV ±200 µV
200°C 13.421 µV ±120 µV ±200 µV
400°C 28.946 µV ±120 µV ±200 µV

 

Verarbeitungshinweise

Keramik unterscheidet sich stark von herkömmlichen Drahtisolierungen. It is very hard and sensitive to moisture.

It therefore requires special care during processing:

  • The wires must be stored and processed in a dry environment.
  • The wires must not be subjected to impact or shock.
  • The wires must not be kinked under any circumstances. Visual inspection: A bending radius that is too tight or a kink in the wire can generally be recognised by cracks in the ceramic insulation, which become visible as bleaching of the surface.


Stripping

The ceramic coating on the KD500 is very thin and adheres to the conductor. Conventional stripping tools can therefore not be used. Stripping can be carried out with fine sandpaper.