Prosonic - Model FMU40 - Ultrasonic Measurement Time-of-Flight
From Level Measurement-
Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 5m. The Prosonic FMU40 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.
Benefits
- Reliable non-contact measurement
- Quick and simple commissioning via menu-guided on-site operation with four-line plain text display, 7 languages selectable
- Envelope curves on the on-site display for simple diagnosis
- Hermetically sealed and potted sensor
- Chemically resistant sensor out of PVDF
- Calibration without filling or discharging
- Integrated temperature sensor for automatic correction of the temperature dependent sound velocity
Field of Application
Two-wire or four-wire instrument for continuous non-contact level and flow measurement.
- Process connection: Thread
- Temperature: -40 to +80°C (-40 to +176°F)
- Pressure: +0.7 to +3bar (+10 to +44psi)
- Maximum measuring distance: Liquids 5m (16ft), Solids 2m (16ft)
- Blocking distance: Liquids and Solids 0.25m (0.8ft)
- International explosion protection certificates
Features and Specifications
-
Measuring principle
Ultrasonic
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2/4-wire (HART), PROFIBUS PA, FOUNDATION Fieldbus
-
Accuracy
+/- 2 mm or +/- 0.2 % of set measuring range 1)
-
Ambient temperature
-40 °C ... 80 °C
(-40 °F ... 176 °F) -
Process temperature
-40 °C ... 80 °C
(-40 °F ... 176 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar ... 3 bar abs
(10 psi ... 44 psi) -
Main wetted parts
PVDF
-
Process connection
G / NPT 1 1/2'
-
Blocking distance
0.25 m (0.8 ft)
-
Max. measurement distance
2 m (6 ft)
-
Communication
4 ... 20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus -
Certificates / Approvals
ATEX, FM, CSA, TIIS, INMETRO, NEPSI
-
Application limits
Take notice of range diagram
-
Measuring principle
Ultrasonic
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2/4-wire (HART),
PROFIBUS PA,
FOUNDATION Fieldbus -
Ambient temperature
-40 °C...+80 °C
(-40 °F...+176 °F) -
Process temperature
-40 °C...+80 °C
(-40 °F...+176 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar...3 bar abs
(10 psi...44 psi) -
Main wetted parts
PVDF
-
Process connection
G / NPT 1 1/2'
-
Blocking distance
0.25 m (0.8 ft)
-
Communication
4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus -
Certificates / Approvals
ATEX, FM, CSA, INMETRO, NEPSI
-
Application limits
Take notice of range diagram
-
Measuring principle
Ultrasonic
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2/4-wire (HART), PROFIBUS PA, FOUNDATION Fieldbus
-
Accuracy
+/- 2 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 absolute / max. overpressure limit
0.7 bar ... 3 bar abs
(10 psi ... 44 psi) -
Main wetted parts
PVDF
-
Process connection
G / NPT 1 1/2'
-
Blocking distance
0.25 m (0.8 ft)
-
Application
-
Max. measurement distance
5 m (16 ft)
-
Communication
4 ... 20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus -
Certificates / Approvals
ATEX, FM, CSA, TIIS, INMETRO, NEPSI
-
Application limits
For higher resistance:
FMU42/FDU9x
Foam / high turbulence possible:
FMU41/FDU91
Fast filling and discharging rate:
FMU90 + FDU9x
Level limit detection:
FMU90 + FDU9x
-
Measuring principle
Ultrasonic
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2/4-wire (HART),
PROFIBUS PA,
FOUNDATION Fieldbus -
Ambient temperature
-40 °C...+80 °C
(-40 °F...+176 °F) -
Process temperature
-40 °C...+80 °C
(-40 °F...+176 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar...3 bar abs
(10 psi...44 psi) -
Main wetted parts
PVDF
-
Process connection
G / NPT 1 1/2'
-
Blocking distance
0.25 m (0.8 ft)
-
Communication
4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus -
Certificates / Approvals
ATEX, FM, CSA, INMETRO, NEPSI
-
Application limits
Take notice of range diagram
-
Measuring principle
Ultrasonic
-
Product headline
Compact ultrasonic measuring instrument
Cost effective solution for open channel -
Max. measurement error
Low accuracy
-
Measuring range
0,25...5m [0.8...16ft]
-
Max. process pressure
atm.
-
Medium temperature range
-40°C ... 80°C
(-40°F...176°F) -
Degree of protection
IP68
-
Outputs
4...20mA(Hart),PA,FF
-
Inputs
2-wire 16-36V DC,
4-wire 16-36V DC,
90-253V AC 50/60Hz -
Digital communication
PROFIBUS PA, FOUNDATION Fieldbus
-
Hazardous area approvals
ATEX, FM, CSA
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