Working Principle of rpd gas meter
The RPD gas meter operates on the positive displacement principle, where gas is captured and measured in fixed volumes within the meter's internal chambers.
Rotor Movement:
The meter contains two precisely engineered rotors that rotate in opposite directions as gas flows through. Each rotation corresponds to a specific volume of gas.
Volumetric Flow Measurement:
The rotational motion of the rotors is mechanically or electronically converted into a signal to measure the volumetric flow rate of the gas.
Electronic Volume Corrector (EVC):
The EVC enhances accuracy by compensating for changes in gas temperature and pressure. Integrated sensors monitor real-time temperature and pressure variations. Correction algorithms calculate the normalized or corrected gas volume, usually referenced to standard conditions.
Output and Integration:
The meter provides an analog output (e.g., 4-20mA) for seamless integration with monitoring or control systems, enabling precise measurement and system optimization.
High Accuracy in Fluctuating Conditions:
The combined operation of the RPD meter and EVC ensures reliable and accurate gas flow measurement, even in environments with fluctuating process parameters.
This setup ensures consistent, accurate, and reliable gas measurement for a wide range of industrial and commercial applications.
