Water meters that can effectively register both small and large flows are referred to as?

Compound water meters are specifically designed to measure a wide range of flow rates, effectively handling both low and high flow scenarios. They incorporate two different types of metering mechanisms: a positive displacement mechanism for measuring low flows and a turbine mechanism for capturing higher flows. This dual design allows the compound meter to maintain accuracy and reliability across varying flow conditions, making it an ideal choice for applications where the water usage can fluctuate significantly.

On the other hand, while positive displacement meters are excellent for registering small flows, they may not perform well under high flow conditions. Multi-jet meters, although versatile, typically excel in moderate flow measurements but are not optimized for the extremely low or high ranges. Ultrasonic meters, while capable of measuring flow without moving parts, may have limitations regarding the range of flow they can accurately measure when compared to the dual functionality of compound meters.