1.Introduction
Non-contact ultrasonic technology has transformed open channel flow measurement, serving water conservancy, sewage treatment, and chemical industries with reliable, low-maintenance solutions.
As leading ultrasonic open channel flowmeter, the UOC series Open Channel Flowmeter and UOL series Weir type Open Channel Flowmeter are the top non-contact choices, sharing core strengths while offering unique features for targeted needs—from wastewater monitoring to storm water management.
2. Shared Core Advantages
Both products embody the essence ofHigh Precision Open Channel Flow Meter, with a level change accuracy of 1mm and flow measurement responding to 1mm variations. They are compatible with a variety of weirs and flumes, including ISO-standard Parshall flumes, V-Notch weirs, rectangular weirs and custom formula-type weirs. Both support flow rate display in L/S, m³/h or m³/min, offer excellent anti-interference capability, and allow a maximum cable length of 1000m between the probe and the host. Additionally, both provide 4-20mA output and RS485 serial communication (MODBUS-RTU) output.
3. Key Distinctions
3.1. Display Systems
The UOL series feature a practical backlit double-line 14-bit LCD, offering clear readouts of flow rate and level. The UOC series is an upgraded version of the UOL series, and it is equipped with a 5-inch anti-fog and anti-stain color touch screen.
In addition, the UOC series also supports displaying trend curves and historical records (which can be exported via a micro SD card).
3.2. Structural Protection
Both have high IP ratings (UOL: transmitter IP67, sensor IP68; UOC: IP68 with leak-proof probe), ensuring durability in wet, dusty conditions. The UOC’s extra leak-proof design adds security for spill-prone or high-humidity settings like chemical plants.
3.3. power supply
The UOL series can only be powered by direct current or alternating current. However UOC series adopt AC and DC two-way power supply design, can be connected to AC or DC power supply.
4. Conclusion: Matching the Right Meter to Your Application
The UOC and UOL series are exceptional ultrasonic open channel flowmeters.Both deliver lower maintenance costs, precise measurements, regulatory compliance, and efficiency—whether integrated with weir/flume setups or used standalone—setting high standards for Flume type Open Channel Flow Meter measurement across industries.The following applications can be referred to.
Post time: Nov-19-2025