Ultrasonic Level Meter Troubleshooting: No Echo, False Level, and Unstable Readings

Why Q1, Q2, Q3, Q4, and R matter Water meter datasheets often list a nominal diameter, a permanent flow rate, an R ratio, and several flow points. These values are not interchangeable. They define the metrological operating range and help buyers compare meters that may have the same DN size but very different low-flow capability. This article explains the flow-rate term...

The correct choice depends on the vapor space and the process, not only the tank height Ultrasonic and non-contact radar instruments both measure the distance from a sensor to a product surface and convert that distance into level. Their physical signals are different, however. Ultrasonic instruments use mechanical sound waves travelling through the gas space, while rada...

Installation affects metering performance An ultrasonic water meter measures the transit-time difference between signals travelling with and against the water flow. The electronic calculation may be accurate, but the measurement still depends on the hydraulic condition inside the meter body. Air, an incompletely filled pipe, severe flow disturbance, a misaligned gasket, ...