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.
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.
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.
Measurement scales are flexible and depend on the specific components. In this way, the device can be adapted to specific monitoring requirements.
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.
Three dry contacts enable advanced functions such as measurement hold, range change and self-calibration start.
The backlit LCD display provides a clear view of data, facilitating real-time monitoring.
Optional RS-232C Modbus® communication enables easy integration with other systems.
Theanalyser is designed for easy panel mounting and accepts a supply voltage range of 100 to 240 Vac, 50/60 Hz.
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.
| Sample gas | Reference gas | Measurement ranges | Maximum range ratio |
|---|---|---|---|
| H2 | N2, (CO2, Ar, He) | 0 ... 3, 5, 10, 20, 50, 80, 100 % 100 ... 90 %, 100 ... 80 % | 1 : 10 |
| He | N2, (CO2, Ar), O2, Air | 0 ... 5, 10, 20, 30, 40, 50, 80, 100 % 100 ... 90 %, 100 ... 80 % | 1 : 10 |
| Ar | N2, O2, Air, (He) | 0 ... 10, 20, 50, 80, 100 % 100 ... 90 %, 100 ... 80 % | 1 : 5 |
| CH4 | N2, (CO2, Ar, He) | 0 ... 20, 40, 50, 60, 80, 100 % 100 ... 80 % | 1 : 5 |
| CO2 | N2, 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.
Thermal conductivity gas analyser - ZAF
ref : ZAF Discover
Thermal conductivity gas analyser for EX zones - ZAFE
ref : ZAFE Discover
