Wi.Tec-Sensorik · The Gas Measurement Company
Compact alternative to laser and dew point mirror sensors
Humidity measurement is an important component of gas measurement technology, since a greater or lesser water vapor content is present in almost all applications. In combustion processes, for example, water is formed as a reaction product from the HC compounds, while in medical technology (breathing gas analysis) the water content originates from the lungs. Since the water content is very closely linked to the gas temperature, it can change over wide ranges and thus massively influence the concentration ratios in a gas mixture.
Here are some application areas
- Food technology
- Gas application
- Ceramic/porcelain production
- Process chemistry
- Moisture measurement in biogas and digester gas
- Plant physiology
- Glass production
- Moisture monitoring in coating processes
- Metal industry
The Wi.Tec concept for online measurement of water vapor, is based on the absorption of IR radiation. For this purpose, the proven INFRA.sens® is selectivated to the H2O main absorption band. With a 250 mm analysis cuvette, H2O concentration changes of less than 5 ppm can be reliably detected in a measuring range of 0-2000 ppm. Stainless steel piping is used for residual moisture determination. For high dew points, the INFRA.sens® is heated up to 50 °C. In a 3-channel setup, two additional gases can be detected simultaneously in the same analysis cuvette.
Features & Benefits
- Detection limit: < 5 ppm H2O
- Fast response time (t90 < 10 sec)
- Corrosion resistant design possible (processline)
- Low maintenance operation
- Can be combined with other gas measurements such as CO2, CO, CnHm, CH4 etc.