FMU42 Ultrasonic measurement

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 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

• 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

• Application limits

  Foam / high turbulence possible:
  FMU44/FDU92
  Fast filling and discharging
  rate:
  FMU90 + FDU9x
  Level limit detection
  FMU90 + FDU9x

FMU42-APB2A22A

• Approval

  A

  Non-hazardous area
• Process Connection

  P

  UNI flange 3"/DN80/80, PPmax 2.5bar abs./ 36psia, suitable forNPS 3" Cl.150 / DN80 PN16 / 10K 80
• Power Supply; Output

  B

  2-wire; 4-20mA HART
• Operation

  2

  4-line display VU331,envelope curve display on site
• Housing

  A

  F12 Alu, coated, IP68 NEMA6P
• Cable Entry

  2

  Gland M20 (EEx d > thread M20)
• Process Sealing Sensor / Flange

  2

  FKM Viton
• Additional Option

  A

  Basic version