Endress+Hauser has introduced the FlexView FMA90, a monitoring and control unit designed for use in large water and wastewater facilities. The device supports three measurement technologies — ultrasonic, hydrosonic and radar — aiming to provide flexibility for a range of level and flow applications.
One of the unit’s core functions is the ability to connect two 4–20 mA level sensors at the same time, allowing operators to display readings from two separate measuring points. The FMA90 is intended to support operational tasks such as rake control, flow pulse output, and the monitoring of open channel flow and level during rain overflow events.
In wastewater installations, the FMA90 can be paired with Endress+Hauser’s Micropilot FMR20B compact radar level sensor to improve rake control performance. The radar sensor measures buildup to detect potential clogging, enabling the control unit to trigger a cleaning mechanism when required. The company says the sensor’s focused beam angle supports reliable measurement even in the presence of foam.
The FMA90 features a 3.5-inch color touchscreen designed for glove operation and includes guided setup through tutorials and configuration wizards. Compatible Endress+Hauser sensors, including the Micropilot family (FMR20B, FMR30B), the Waterpilot FMX21 hydrostatic level transmitter, and the ultrasonic FMU30 level sensor, are automatically detected. The company also noted that a successor to its ultrasonic devices is planned for release later this year.
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Remote access is supported through built-in Wi-Fi connectivity, allowing operators to view sensor data from mobile devices or desktop computers, including in hard-to-reach locations. The unit also incorporates enhanced cybersecurity features, according to Endress+Hauser.
The FlexView FMA90 is available in three housing configurations: field, DIN rail and panel mount. It includes an integrated intrinsically safe power feed to supply connected sensors, reducing installation requirements in hazardous areas by eliminating the need for additional protective barriers.
Endress+Hauser said the FMA90 was developed to meet industry standards for demanding environments. The unit also includes integrated flow totalizers, intended to support reliable data collection for billing, regulatory reporting, and time-based operational analysis.
