Niagara Meters” 5600 Series serves a dual use as an ultrasonic liquid level system and an open-channel flow controller. The instrument is a noncontact system, which means no contamination of material, no lost parts or cables, no material build-up on the sensing face, and it is not affected by grease, suspended matter, silt, or corrosive chemicals. The system’s Sentry DSP provides stable and accurate readings under process conditions. The FRP or optional stainless steel enclosure offers a high level of protection in harsh environments. For level, the system can monitor up to eight transducers of various frequencies, and vessels of different heights and shapes. For open-channel flow, it provides uniform and reliable flow measurement data and assists in meeting water quality regulatory requirements.