OCF simplified: Universal controller and radar level sensor
Discover how FlexView FMA90 and Micropilot FMR20B deliver accurate non-contact level measurement, easy commissioning and remote access for simplified open channel flow
An industrial site using open channel flow to totalize its wastewater discharge to a municipal wastewater entity, and operating a small open channel flow application, faced ongoing challenges for years with an older level measurement device installed on a six-inch Palmer-Bowlus flume. The installation was not optimal, and since the customer had limited experience with instrumentation, remote troubleshooting became difficult. The site upgraded to an FlexView FMA90-Micropilot FMR20B combo.
Results from using a controller, radar level sensor
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Simplified commissioning
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Remote connectivity
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Improved accuracy
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Intuitive interface
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Reduced downtime
Challenges in open channel flow measurement
The previous system required complex configuration and frequent adjustments, which was a major hurdle for a customer unfamiliar with instrumentation. Coaching over the phone proved ineffective and repeated service visits were not an option. To make matters even more challenging, a third-party provider had originally introduced the concept and sold calibration services that were inefficient. Large adjustments were made just to make the system read correctly.
A holistic open channel flow measurement solution
The upgrade to FlexView FMA90 and Micropilot FMR20B radar level sensor provided advanced technology designed for ease of use. The Micropilot FMR20B radar level probe was set to straight level mode and values were entered into the FlexView FMA90 via HART communication rather than analog scaling, which streamlined commissioning and improved accuracy.
What are the advantages of using radar level sensors?
Radar level sensors provide noncontact measurement unaffected by temperature, pressure or density changes. They deliver reliable performance in harsh conditions such as vapor, dust and turbulence, offer high accuracy even in narrow installations, require minimal maintenance and integrate easily with digital protocols like HART and remote access tools.
What should I consider when choosing a radar level gauge?
Consider process conditions (temperature, pressure, vapor), measurement range and accuracy, material compatibility, mounting options, communication protocols (HART, PROFIBUS, Ethernet), ease of use features like Bluetooth or WLAN and overall reliability for long-term operation.
Can you recommend tools for open channel flow analysis?
Yes. Use the Endress+Hauser Q/h Calculation Tool for linearization tables, FlexView FMA90 for integrated flow calculation using radar level sensors, EPA’s Open Channel Flow Calculator for basic computations and hydraulic software like HEC-RAS for advanced modeling.
