The following are common low-voltage design/low-voltage engineering/smart building low-voltage systems in Taiwan.

Using an FRV turbine flow meter for a diesel boiler is the "correct usage," and it's considered standard equipment for boiler fuel metering. I've compiled this into a practical guide for your reference, making it easier to use on-site.

A flow meter is an instrument used to measure the velocity or flow rate of liquids or gases, and is widely used in industrial production, agriculture, and scientific research.

In smart buildings, flow meters are crucial devices for energy management, water resource management, and HVAC system monitoring. However, because they are installed within pipelines or systems for extended periods, they often encounter on-site and maintenance issues. I've compiled these into a "Type → Common Problems → Causes → Solutions" framework for easy and quick understanding.

In the energy and electromechanical management systems of smart buildings, flow meters are used to monitor and optimize the usage of various fluids, such as water, chilled/hot water, HVAC cooling water, and water supply and drainage systems. This data is typically transmitted back to the building management system (BMS) or energy management system (EMS) for analysis and control.