Making the Right Choice...

Shielded or Not Shielded?
Using long cables may require shielded and grounded cables. Otherwise interferences may affect the signal, particularly so in industrial environments.
We offer several cable types with copper or Mylar shielding. Twisted cables with shielding are also available.

Extension- and Compensating Cables
Extension cables have the order code X (e. g. KX for Type K extension) whereas compensating cables Type Vx or U are marked C (e. g. KC for Vx, Txpe K).
Electromotive force is consistent over the entire termperature range for extension cables making them suitable to be used for thermocouples.
Operation is limited only by the termperature range of the cable.
The compensating cable has another composition and a similar e.m.f vs temperature characteristic but only for a limited temperature range.
That's why they should only be used for connecting the thermocouple to the instrument. It can only be used at regular ambient temperatures of up to 80°C.

Single- or Multi-Core Stranded Wire?
Usually, the application determines this choice. Single stranded wires are generally used for high-temperature applications whereas multi-core or thicker cables are used for thermocouple extensions.
The larger the effective thermocouple diameter the lower is the lead resistance which is important when using very long cables.

Choosing Insulation

Material Temperature Range Description
PVC -10°C...+105°C Good all-purpose insulation for harmless surrounding conditions. Waterproof and pliable.
PFA (extruded) -75°C...+250°C Resists oils, acids and other aggressive substances. High mechanical strength, yet good pliability. Use PTFE for applications in vapour or under high pressure.
PTFE -75°C...+250/300°C Resists oils, acids and other aggressive substances. High mechanical strength, yet good pliability.
Glass Fibre -60°C...+350/400°C Wide temperature range. Not protected against liquid entry. Excellent pliability at reduced mechanical strength.
Glass Fibre for High Temperatures -60°C...+700°C For applications up to 700°C, but not protected against liquid entry. Sufficient pliability at reduced mechanical strength.
Ceramics 0°C...+1000°C For applications up to 1000°C, but no protection against liquids whatsoever. Very susceptible to mechanical stress.
Glass Fibre (Stainless Steel Overbraid) -60°C...+350/400°C Good mechanical strength and suited for high temperatures (400°C). Not protected against liquid entry.

Instruments for Industrial Applications

In addition to temperature sensors and instruments Driesen+Kern GmbH also manufactures high-precision instruments for humidity, climate and CO2 measurements, data loggers and dust/aerosol monitors.
These instruments are often used in environmental surveys, occupational health and safety, meteorology (barometric pressure and humidity) or for sanitary purposes in clinical environments.
Industrial applications for Driesen+Kern GmbH instruments are water analysis in sewage treatment plants, sound level meters for measuring machine noise as well as hygrometers and radiation sensors for research and development in components and building materials.