Thermal Conductivity Analysers

Thermal conductivity gas analysers measure the concentration of H2, He and Ar gases in a given atmosphere. These gas analysers are used, for example, in semiconductor production, leak detection in industrial gas systems and air quality monitoring. Thanks to their reliability and accuracy, thermal conductivity gas analysers ensure the quality and safety of industrial processes.

Thermal Conductivity Gas Analyser ZAF and ZAFE

thermal conductivity gases analysers zaf and zafe

Reliable process control :

For furnaces, metallurgy, semiconductor industry and gas separation.

The ZAF analyser continuously measures the concentration of gases such as H2, He, and Ar with high stability.

It is also available in a version for hazardous areas (for countries outside the European Union): ZAFE certified Ex NEPSI.

fiable process control for metallurgy

Principle of the thermal Conductivity Gas Analyser

principle of the analyser thermal conductivity gas diagram

Because the thermal conductivity is different among gas components, when there is a change in the concentration of the component under measurement, the thermal conductivity of the sample gas will change to affect the temperature of the platinum wire.

The gas analyser uses the temperature change to determine the gas concentration.



Applications of analysers thermally conductive gases

applications for thermal conductivity gases analysers
  • H2 monitoring in semiconductor manufacturing equipment, hydrogen generation equipment, calcining furnaces
  • H2 measures for hydrogen generators
  • H2 measures for furnaces
  • Ar, He or CH4 measurements for gas production
  • He measures for superconduction
  • Ar measures for separation


Custom Measurement Scales

Measurement scales are flexible and depend on the specific components. In this way, the device can be adapted to specific monitoring requirements.

Measurement accuracy

Fast Response Time

Response time is optimized for increased efficiency. The standard version guarantees a response time of ≤ 60 seconds, while the fast-response version reduces this to ≤ 10 seconds.

Multi-purpose outings

Contact inputs (Optional)

Three dry contacts enable advanced functions such as measurement hold, range change and self-calibration start.

User-friendly display

The backlit LCD display provides a clear view of data, facilitating real-time monitoring.

Extended communication options

Optional RS-232C Modbus® communication enables easy integration with other systems.

Simple mounting and universal power supply

Theanalyser is designed for easy panel mounting and accepts a supply voltage range of 100 to 240 Vac, 50/60 Hz.

Compact and lightweight

With dimensions of 192 (W) × 240 (H) × 213 (D) mm and a weight of around 5 kg,analyser is compact and easy to integrate into a variety of environments.

measurable components and ranges

Measurable components and ranges

Sample gasReference gasMeasurement rangesMaximum range ratio
H2N2, (CO2, Ar, He)0 ... 3, 5, 10, 20, 50, 80, 100 %
100 ... 90 %, 100 ... 80 %
1 : 10
HeN2, (CO2, Ar), O2, Air0 ... 5, 10, 20, 30, 40, 50, 80, 100 %
100 ... 90 %, 100 ... 80 %
1 : 10
ArN2, O2, Air, (He)0 ... 10, 20, 50, 80, 100 %
100 ... 90 %, 100 ... 80 %
1 : 5
CH4N2, (CO2, Ar, He)0 ... 20, 40, 50, 60, 80, 100 %
100 ... 80 %
1 : 5
CO2N2, O2, Air, (He)0 ... 10, 20, 50, 100 %
100 ... 90 %
1 : 5

*1: Those in parenthesis need consultation. Measurement of H2 included in O2 is not available.

Discover the thermal conductivity analysers

Ensure the safety and quality of your applications with our thermal conductivity gas analysers!