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Measuring principle
Ultrasonic
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Characteristic / Application
Compact ultrasonic transmitter
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Supply / Communication
2-wire HART
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Accuracy
+/- 4 mm or +/- 0,2 % of set measuring range
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Ambient temperature
-40 °C … 80 °C
(-40 °F … 176 °F) -
Process temperature
-40 °C … 80 °C
(-40 °F … 176 °F) -
Process pressure / max. overpressure limit
0.7 bar … 2.5 bar abs
(10 psi … 36 psi) -
Main wetted parts
PVDF
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Process connection
Flange
DN80, ASME 3″, JIS 10K 80
DN100,ASME 4″, JIS 10K 100
Mounting bracket -
Blocking distance
0.4 m (1.3 ft)
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Max. measurement distance
Liquids: 10 m (33 ft),
Solids: 5 m (16 ft) -
Communication
4…20 mA HART
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Certificates / Approvals
ATEX, FM, CSA, INMETRO, NEPSI
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Application limits
Foam / high turbulence possible:
FMU44/FDU92
Fast filling and discharging
rate:
FMU90 + FDU9x
Level limit detection
FMU90 + FDU9x
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Measuring principle
Ultrasonic
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2-wire HART
-
Accuracy
+/- 4 mm or +/- 0,2 % of set measuring range
-
Ambient temperature
-40 °C … 80 °C
(-40 °F … 176 °F) -
Process temperature
-40 °C … 80 °C
(-40 °F … 176 °F) -
Process pressure / max. overpressure limit
0.7 bar … 2.5 bar abs
(10 psi … 36 psi) -
Main wetted parts
PVDF
-
Process connection
Flange
DN80, ASME 3″, JIS 10K 80
DN100,ASME 4″, JIS 10K 100
Mounting bracket -
Blocking distance
0.4 m (1.3 ft)
-
Max. measurement distance
Liquids: 10 m (33 ft),
Solids: 5 m (16 ft) -
Communication
4…20 mA HART
-
Certificates / Approvals
ATEX, FM, CSA, INMETRO, NEPSI
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Application limits
Take notice of range diagram
Field of application
The Prosonic FMU42 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.
Two-wire or four wire instrument for continuous non-contact level and flow measurement.
Process connection: Flange
Temperature: -40 to +80°C (-40 to +176°F)
Pressure: +0.7 to +2.5bar (+10 to +36psi)
Maximum measuring distance: Liquids 10m (33ft), Solids 5m (16ft)
Blocking distance: Liquids and Solids 0.4m (1.3ft)
International explosion protection certificates
Benefits
Reliable non-contact measurementQuick and simple commissioning via menu-guided on-site operation with four-line plain text display, 7 languages selectableEnvelope curves on the on-site display for simple diagnosisHermetically sealed and potted sensorChemically resistant sensor out of PVDFCalibration without filling or dischargingIntegrated temperature sensor for automatic correction of the temperature dependent sound velocity