Endress+Hauser Prosonic FDU93 Ultrasonic measurement Time-of-Flight

• Integrated temperature sensor for Time-of-Flight correction. Accurate measurements are possible, even if temperature changes are present
• Suited for rough ambient conditions thanks to separate installation from the transmitter (up to 300m)
• Reduced build-up formation because of the self-cleaning effect
• Integrated automatic sensor detection for transmitters FMU90/FMU95 for simple commissioning
• Weather resistant and flood-proof (IP 68)
• Non-contact measurement method minimizes service requirements
• International Dust-Ex and Gas-Ex certificates available

Sensor for continuous, non-contact level measurement of fluids and of bulk materials in silos, on belts, stockpiles and in crushers. Also for flow measurement in open channels and at weirs. Typically used in measurements in low structural heights.

• Process connection: Thread
• Temperature: -40 to +95°C (-40 to +203°F)
• Pressure: +0.7 to +3bar (+10 to +43psi)
• Maximum measuring range: Liquids 25m (85ft), solids 15m (50ft)
• Blocking distance: 0.6m (2ft)
• International explosion protection certificates

• Measuring principle

  Ultrasonic

• Characteristic / Application

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

• Supply / Communication

  4-wire (HART , Profibus DP)

• Accuracy

  +/- 2mm + 0.17% of measured distance

• Ambient temperature

  -40 °C … 95 °C
  (-40 °F … 203 °F)

• Process temperature

  -40 °C … 95 °C
  (-40 °F … 203 °F)

• Process pressure absolute / max. overpressure limit

  0.7 bar … 3 bar abs
  (10 psi … 43 psi)

• Main wetted parts

  UP (unsaturated polyester)
  Silicon / Al PTFE coated

• Process connection

  G / NPT 1″

• Blocking distance

  0.6 m (2 ft)

• Max. measurement distance

  15 m (50 ft)

• Communication

  Transmitter:
  4 … 20 mA HART
  Profibus DP

• Certificates / Approvals

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

• Options

  Second 4…20mA output

• Components

  Transmitter:
  FMU90

Download : Prosonic S FDU90,91,91F,92,93,95 Technical Information,Operating Instructions

Alignment Unit FAU40 Technical Information