Günther Main type_18TKL

18-TKL

Micro- and laboratory thermocouple assemblies

Micro- and laboratory thermocouple assemblies (18-TKL) are pref- erentially used for technical temperature measurements in liquid and gaseous media within a temperature range between 200°C and 1800°C.

Micro- and laboratory thermocouple assemblies differ from con- ventional thermocouple assemblies in their very small dimensions, light weight and variable mounting options. They also warrant exact temperature measurements within a constrained installation space. In consequence of design, these sensors also have very short reac- tion times.

There is a notable danger of “poisoning” noble metal thermo- couples in micro- and laboratory thermocouple assemblies by substances diffusing through the protective fitting, such as those to be found in flue gas, for example. In order to avoid these types of influences, we recommend using a version employing gas-tight ceramic.

Operation temperature for platinum-rhodium / platinum thermocouples:

The individual properties of the most common ceramic types can be found on page 73, in the chapter “Technical information”.

Application examples for micro- and laboratory thermocouple assemblies:

Plant and machine construction

Steel and iron industry

Automobile industry

Heat treatment

Chemical industry

Laboratories

Industrial furnace construction

The thermal materials used by GÜNTHER GmbH for micro- and laboratory thermocouple assemblies are according to DIN EN 60584.