Ultrasonic measurement
Time-of-Flight
Prosonic FDU91F

Hygienic sensor for level and flow measurement for connection to FMU9x (measuring range up to 10m)

• Measuring principle

  Ultrasonic

• Characteristic / Application

  Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300 m in-between sensor and transmitter

• Supply / Communication

  4-wire (HART, PROFIBUS DP)

• Accuracy

  +/- 2 mm + 0.17% of measured distance

• Ambient temperature

  -40 °C ... 105 °C
  (-40 °F ... 221 °F)

• Process temperature

  -40 °C ... 105 °C
  (-40 °F ... 221 °F)
  CIP: 30 min: 135 °C
  (30 min: 275 °F)

• Process pressure / max. overpressure limit

  0.7 bar ... 4 bar abs
  (10 psi ... 58 psi)

• Main wetted parts

  316L (fully welded IP68 / NEMA 6P)

• Process connection

  G / NPT 1", DN80 / 100, ASME 3" / 4"

• Process connection hygienic

  Tri-Clamp ISO2852, DN80 3 1/2", DN100 4"

• Blocking distance

  0.3 m (1 ft)

• Max. measurement distance

  Liquids: 10 m (33 ft),
  Solids: 5 m (16 ft)

• Communication

  Transmitter:
  4 ... 20 mA HART
  PROFIBUS DP

• Certificates / Approvals

  ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex

• Design approvals

  EN 10204-3.1

• Hygienic approvals

  3A

• Components

  Transmitter:
  FMU90, FMU95

• Application limits

  Foam / high turbulence possible:
  FDU92
  For tank farms scanner:
  FMU95