What instrument is used to measure the flow rate in a pumping system?

In a pumping system, the instrument specifically designed for measuring the flow rate is the flow meter. Flow meters are essential for quantifying the volume or mass of fluid that passes through a point in a given time frame. This capability allows operators to monitor the efficiency of the pumping system and make necessary adjustments to ensure optimal performance.

Flow meters come in various types, including mechanical, electromagnetic, and ultrasonic, each suited for different applications and fluid characteristics. By providing real-time data on flow rates, these devices play a crucial role in managing the system's operations, ensuring safety, and maintaining compliance with regulatory requirements.

Other instruments, such as manometers, pressure gauges, and thermometers, serve different purposes in a pumping system. Manometers measure pressure; pressure gauges indicate the pressure within the system, and thermometers monitor temperature levels. While these instruments are important for overall system diagnostics and management, they do not measure flow rate, making a flow meter the correct and most relevant choice in this context.