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Technical Information TI 190F/24/ae Ultrasonic Measurement Prosonic FMU 860 to 862Level and flow measurements with ultrasonics Simple to start up, easy to use, flexible Field mounted ultrasonic transmitters Applications Prosonic FMU 860, 861 and 862 ultrasonic transmitters are for use with the Prosonic FDU 80 to 86 family of sensors. The transmitter determines levels in silos and tanks and calculates the volume of solids and liquids they contain. With the Prosonic transmitter, sensors can be operated which are mounted in explosion hazardous areas according to FM, CSA or ATEX. When used for applications in fresh and wastewater, the Prosonic measures: flow rates in flumes and weirs water levels differential level/screen control wet well level/pump sequencing The Prosonic transmitter is also used in applications for: storage tank level process vessel level solids hopper level solids silo level Features and benefits A universal transmitter that covers a wide range of measurement and control applications with sensors to provide liquid and solids level measurement from two inches to over 230 feet. Choice of transmitters designed for field or control room single or two-channel versions with three to five relays and optional totalizer optional HART interface for remote configuration optional PROFIBUS-DP and RS 485 interface Intelligent commissioning, enhanced reliability, enhanced safety, plus simple to install and program. Instrument parameters arranged in a simple matrix various linearization functions, totalizers, and all common Q/h curves included in the software quick commissioning and stable measurement due to signal pattern recognition by fuzzy logic and the application parameter The Power of Know How FMU 860 to 862 Measuring systemMeasuring system The measuring system consists of the Prosonic transmitter with a Prosonic sensor chosen according to the required application.

The two-channel version is for differential measurement or for controlling two measuring points. The certified sensor ensures that the measuring system can be used in explosion hazardous areas. Other units can be connected to the Prosonic transmitter for special applications: separate temperature sensor, e.g. Renault laguna 2 service manual.

If the ultrasonic sensor is heated separate external limit detector. The Prosonic transmitter can be integrated into automation systems using the RS 485 or PROFIBUS-DP interface. Overspill protection Double protection against overfill: all Prosoinc transmitters have an additional connection for an external limit detector even when the level moves within the blocking distance of the sensor, this error is indicated promptly on the display, the signal output and relays. Or FMU 860 FDU FDU EX FMU 86 FDU Max.

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 20m The Prosonic FMU44 sensor is suited for non-contact level measurement in fluids, pastes, coarse bulk material and flow measurement in open channels or at weirs. The two-wire or four-wire compact transmitter can be used in applications with storage tanks, agitators, on stockpiles and conveyor belts.

The envelope curve can be shown on the on-site display for simple diagnosis. Linearization function (up to 32 points) for conversion of the measured value into any unit of length, volume or flow rate.