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Compact Ultrasonic Level Transmitter Prosonic FMU44

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Compact Ultrasonic Level Transmitter Prosonic FMU44 series
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Description

Application

The Prosonic FMU44 sensor is ideal for non-contact level measurement in liquids, pastes, coarse bulk materials, as well as for flow measurement in open channels or at weirs. It is a versatile two-wire or four-wire compact transmitter, suitable for use in various settings such as storage tanks, agitators, stockpiles, and conveyor belts. The on-site display features an envelope curve for straightforward diagnostics, while the linearization function (up to 32 points) allows the measured value to be converted into any desired unit of length, volume, or flow rate.

This instrument is available in two-wire or four-wire configurations for continuous, non-contact level and flow measurement.

  • Process Connection: Flange
  • Temperature Range: -40 to +80°C (-40 to +176°F)
  • Pressure Range: +0.7 to +2.5 bar (+10 to +36 psi)
  • Maximum Measuring Distance: 20 m (66 ft) for liquids, 10 m (33 ft) for solids
  • Blocking Distance: 0.5 m (1.9 ft) for both liquids and solids
  • Certification: International explosion protection certificates

 


 

Benefits

  • Provides reliable non-contact measurement.
  • Fast and easy setup with menu-guided, on-site operation and a four-line plain text display, available in seven languages.
  • Envelope curves displayed on-site for easy diagnostics.
  • Hermetically sealed and potted sensor ensures durability.
  • Constructed from chemically resistant PVDF material for enhanced durability.
  • Allows calibration without the need for filling or discharging.
  • Built-in temperature sensor automatically corrects for temperature-dependent sound velocity.

 

SPECIFICATIONS

Pressure Specifications

Measuring principle Ultrasonic
Characteristic / Application Compact ultrasonic transmitter
Supply / Communication 2-wire HART
Accuracy +/- 4mm 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

DN100, ASME 4", JIS 10K 100

DN150, ASME 6", JIS 10K 150

DN200, ASME 8", JIS 10K 200

Mounting bracket

Blocking distance 0.5 m (1.9 ft)
Max. measurement distance

Liquids: 20 m (66 ft),

Solids: 10 m (33 ft)

Communication 4...20 mA HART
Certificates / Approvals ATEX, FM, CSA, INMETRO, NEPSI
Application limits

Fast filling and discharging rate:

FMU90 + FDU9x

Level limit detection:

FMU90 + FDU9x

Continuous / Solids Specifications

Measuring principle Ultrasonic
Characteristic / Application Compact ultrasonic transmitter
Supply / Communication 2-wire HART
Accuracy +/- 4mm 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

DN100, ASME 4", JIS 10K 100

DN150, ASME 6", JIS 10K 150

DN200, ASME 8", JIS 10K 200

Mounting bracket

Blocking distance 0.5 m (1.9 ft)
Max. measurement distance

Liquids: 20 m (66 ft),

Solids: 10 m (33 ft)

Communication 4...20 mA HART
Certificates / Approvals

ATEX, FM, CSA, INMETRO, NEPSI

Application limits Take notice of range diagram

 

Documents

You may want to read this product's catalog. If so, please click to view the Endress+Hauser Ultrasonic measurement Time of Flight Prosonic FMU44 Series datasheet.
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