• Components
The series produced by Lanry Instruments is a remote version ultrasonic open channel flow meter (UOC). It consists of two elements, a wall mounted host, which has a display and an integral keypad for programming, and a probe, which must be mounted directly above the surface to be monitored. Both of the host and the probe are plastic leak-proof structure.
• Applications
The UOC series weir type open channel flowmeter can be widely applied to the environmental protection, water treatment, irrigation, chemical, and other industries.
• Working Principle
The probe is mounted on the top of the flume, and ultrasonic pulse is transmitted by the probe to the surface of the monitored material. There, they are reflected back and received by the probe. The host measures the time t between pulse transmission and reception. The host uses the time t (and the velocity of sound c) to calculate the distance d between the sensor bottom and the monitored liquid surface: d = c •t/2. As the host knows the installation height H from parameters setting, it can calculate the level as follows: h = H – d.
• Flow Rate Calculation
For determined flumes, there is a fixed functional relationship between the instantaneous flow and liquid level. The formula is Q=h (x). Q means instantaneous flow, h means liquid level in flumes. So the host can calculate the flow rate though determined flumes and the level value.
• Temperature Sensor Function
Since speed of sound through air is affected by changes in temperature, the UOC series Portable open channel flow meter has integrated a temperature sensor to improve accuracy.
• Summary
This integrated measurement solution combines simplicity, accuracy, and adaptability—with core support from high precision open channel flow meter and flume type open channel flow meter measurement—making it widely used in industrial water treatment, agricultural irrigation, and environmental monitoring scenarios involving flume systems.
Post time: Nov-20-2025