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.
- 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
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 8m (26ft), Solids 3.5m (11ft)
- Blocking distance: Liquids and Solids 0.35m (1.15ft)
- International explosion protection certificates
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 2″
Blocking distance
0.35 m (1.15 ft)
Application
Max. measurement distance
8 m (26 ft)
Communication
4 … 20 mA HART
PROFIBUS PA
FOUNDATION FieldbusCertificates / Approvals
ATEX, FM, CSA, TIIS, INMETRO, NEPSI
Application limits
For higher resistance:
FMU42/FDU9x
Foam / high turbulence possible:
FMU42/FDU91
Fast filling and discharging rate:
FMU90 + FDU9x
Level limit detection:
FMU90 + FDU9x
