Prosonic M FMU41

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 8m

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SKU: FMU41

Highlights

Measuring Range: 8 m (26 ft) in fluids, 3.5 m (11 ft) in bulk materials
Accuracy: ±0.2 % of the maximum span of the sensor
Suitable for fluids, pastes, sullages and coarse bulk materials
Suitable for explosion hazardous areas (Gas-Ex, Dust-Ex)
Hermetically sealed and potted sensor

Fields of application

Fluids, pastes, sullages and coarse bulk materials

Details

The Prosonic FMU41 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.

General Information

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Measuring principle	Ultrasonic
Medium type	Liquids, Bulk solids
Measurement level range	8 m (26 ft) in fluids, 3.5 m (11 ft) in bulk materials
Measured value resolution	1 mm (0.04")
Blocking distance	0.35m (1.15ft)
Maximum allowable pressure	3 bar abs. (43.5 psi abs.)
Process temperature range	-40 to 80°C (-40 to 176 °F)
Process pressure range	0.7 bar to 3 bar abs. (10.15 psi to 43.5 psi abs.)
Sensor accuracy	±0.2 % of the maximum span of the sensor
Display type	LCD 4-line display VU331, Remote display (optional)

Input / Output

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Output	4...20 mA
Communication protocol	HART PROFIBUS PA FOUNDATION Fieldbus
Resolution	1 mm (0.04")
Update frequency	Approx. 50 kHz

Mechanical Data

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Installation type	Vessel, Tank, Shaft, flume or open channel
Installation position	On top
Process connection	Thread: G / NPT 2"
Wetted material	PVDF
Housing material	Aluminum (coated)
Degree of protection	With closed housing: IP68, NEMA 6P or IP66, NEMA 4x; With open housing: IP20, NEMA1

Electrical Data

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Voltage Type	AC/DC
Power supply	HART, 4-wire: 10.5 to 32 VDC, 90 to 253 VAC; HART, 2-wire: 8 to 36 V
Cable entry	Gland M20, Thread: ½" NPT, G ½", Plug: M12 / Plug 7/8"

Certification / Approvals

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Hazardous approvals	ATEX, FM, CSA, TIIS, INMETRO, NEPSI
Other Approvals/ Certification	CE

Additional Information

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Ambient temperature range	-40 to 80 °C (-40 to 176 °F)
Storage temperature	-40 to 80 °C (-40 to 176 °F)
Vibration resistance	Yes
Overvoltage protection	T12 with overvoltage protection
Galvanic isolation	4-wire devices
Electromagnetic compatibility (EMC)	EN 61326 (NE21)