Ultrasonic Level Meter Applied to Measure Sewage Height in Wastewater Treatment Plant

　　 Ultrasonic level meter applied to measure sewage height at a wastewater treatment plant in Changle. The customer reported that the readings were jumping around and unstable. After Dayu technicians arrived on site, they found that the signal was too strong, causing detection of secondary echoes. They changed the response speed from fast to slow, changed special environment 7 to special environment 2, changed the probe type from 5 to probe type 2, raised the short gate limit to 100, and changed the short sensitivity to 120. After that, they observed on site for an hour, and the readings remained stable.