Moisture meters

Moisture Meters for ASMPV: Selection Considerations

Moisture meters are industrial instruments designed to measure the moisture content of gaseous media; they are used as part of automated industrial emissions monitoring systems (CEMS) as well as for process control. When selecting equipment, it is important to consider not only the measurement range and accuracy, but also compliance with the requirements of the Environmental Code of the Republic of Kazakhstan, operating conditions, and the specific characteristics of the flue gas duct.

Why Is It Necessary to Monitor Flue Gas Humidity?

The need for precise control of the humidity of flue and process gases is directly dictated by the requirements of the Environmental Code of the Republic of Kazakhstan (No. 400-VI, dated January 2, 2021). Within the ASMPV system, the humidity value is used to correctly convert the volumetric concentrations of pollutants ($SO_2$, $NO_x$, $CO$, and particulate matter) to dry gas and standard conditions. Without this data, it is impossible to obtain reliable results from continuous environmental monitoring.
Unlike household devices, industrial air humidity meters are designed for operation under conditions of high temperatures, high dust levels, and exposure to chemically aggressive components of flue gases. This is precisely why, when selecting equipment for CEMS, specialized solutions developed for continuous operation at industrial facilities are used.

Technical Specifications for Moisture Meters in the Republic of Kazakhstan

When selecting a moisture measurement device, it is essential to consider the parameters of the process and the operating conditions. The following factors are important for reliable equipment operation:

• Corrosion resistance of the sampling probe;
• Resistance to sulfur dioxide, water vapor, and mechanical impurities;
• Protection of the measuring unit against dust;
• Automatic purging and temperature compensation;
• The ability to operate continuously as part of CEMS systems;
• Compatibility with existing monitoring systems and automation equipment.
   

For most industrial environmental monitoring applications, optical and sorption-type moisture meters are the optimal solution, as they provide high measurement accuracy and stable performance under harsh operating conditions.

Promanalit supplies industrial humidity measurement instruments for environmental monitoring systems and assists in selecting equipment tailored to specific flue gas parameters, gas temperature, measurement range, medium composition, and project requirements.

All supplied equipment is listed in the Register of the State System for Ensuring Measurement Uniformity of the Republic of Kazakhstan (GSI RK) and comes with a complete set of regulatory documentation.

If you are planning to purchase a humidity meter for a flue gas monitoring system (ASMPV) or to upgrade an existing CEMS system, our specialists will perform the necessary calculations and assist you in selecting equipment that fully complies with the requirements of the Republic of Kazakhstan’s legislation and the operating conditions of your facility.