Ultrasonic level controller

The Sitrans LUC500 is an ultrasonic level controller that offers advanced duplex lift station control and open channel flow monitoring. Its design integrates common PLC lift station functionalities into one cost-effective unit preconfigured for the user. Once operational it improves efficiency, and reduces energy consumption and maintenance costs by decreasing pump failures and site visits. The unit replaces Milltronics EnviroRanger ERS 500, maintaining the same proven features and benefits.

It combines non-contacting ultrasonic technology, echo-processing techniques, and application software to provide accurate level control of liquids in wet wells up to 15 m deep. It also monitors flow in flumes, weirs and other open channels. The controller features fault monitoring and data logging for trend analysis, logging time, date, volume or any other application event. It integrates seamlessly with SCADA, PLC or DCS systems to provide remote access to all system parameters (eg, pumped volume, pump runtime, and pump status).

Some major benefits for operators of water and wastewater plants are: up to 16 digital inputs for pump interlocks; the inputs monitor: pump faults (thermal, seal failure), power failure, pump run status, H/O/A switch (hand/off/auto); the integral telemetry interface (Modbus RTU/ASCII) allows remote control in real time; algorithm for calculation of pumped volume within 5% accuracy; logging of pump runtime and number of pump starts; energy-saving function with built-in real-time clock; five relays control any combination of pumps, gate valves and alarms; pump performance/efficiency monitoring (the unit calculates the pump capacities each time the pumps operate, enabling reference pump capacities to be entered for comparison. If the monitored pump capacity falls below the entered reference value, an alarm can indicate operational error, detecting pump failure); and expandable with I/Os, RAM for data logging, dual point, and SmartLinx communications and RS485 interface.