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Library› Cargo› Cargo Level & Temperature Gauging› Ultrasonic Level Gauge› Endress+Hauser Prosonic S FDU91F
Endress+Hauser

Prosonic S FDU91F

Ultrasonic Level Gauge · Cargo Level & Temperature Gauging

Class-certified type (DNV register) · technical data sheet not yet verified
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The FDU91F ultrasonic sensor for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. Also for flow measurement in open channels and at weirs. Measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of sensors. Fully welded 316L with hygienic process connection available. Maximum measuring range in liquids 10m (33ft), solids 5m (16ft).

Specifications

Technical data.reference — unverified

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Blocking distance1.0 m (ft)
Operating frequency42 kHz
Maximum process pressure for PPs slip-on flanges1.5 bar(abs)
Vibration resistanceDIN EN 600068-2-64; 20 to 2 000 Hz; 1 (m/s2)2/Hz; 3x100 min
Thermal shock resistanceBased on DIN EN 60068-2-14; test according to min./max. process temperature; 0.5
Process temperature• Non-Ex, max. 30 min: 135 °C (275 °F) (for Tri-Clamp or flush mounting) • Ex: –
Process pressure0.7 to 4 bar (10.15 to 58 psi)
Npt¾-14"
15°<360
Part numberFDU91F
Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

Ultrasonic sensor for level and flow measurement in various applications.

Applications

  • silos
  • conveyor belts
  • material stockpiles
  • crushers
  • open flumes
  • measuring weirs

Features

  • Integrated temperature sensor
  • Hermetically welded PVDF sensor
  • Separate transmitter installation
  • Self-cleaning effect
  • Weather resistant
  • Flood-proof (IP68)

Options

  • 3A applications
  • Custom dimensions
Source: Endress+Hauser Prosonic S FDU91F datasheet, p. 12

Standards

  • DIN EN 600068-2-64
  • DIN EN 60068-2-14
Source: Endress+Hauser Prosonic S FDU91F datasheet, p. 14
Endress+Hauser Prosonic S FDU91F – Photo (52f0141677a7_S1-18 S. 1)
Photo · 52f0141677a7_S1-18 · S. 1
Endress+Hauser Prosonic S FDU91F – Drawing (52f0141677a7_S1-18 S. 1)
Drawing · 52f0141677a7_S1-18 · S. 1
Endress+Hauser Prosonic S FDU91F – Drawing (52f0141677a7_S1-18 S. 8)
Drawing · 52f0141677a7_S1-18 · S. 8
Endress+Hauser Prosonic S FDU91F – Page preview (52f0141677a7_S1-18 S. 3)
Page preview · 52f0141677a7_S1-18 · S. 3
Endress+Hauser Prosonic S FDU91F – Page preview (52f0141677a7_S1-18 S. 4)
Page preview · 52f0141677a7_S1-18 · S. 4
Endress+Hauser Prosonic S FDU91F – Page preview (52f0141677a7_S1-18 S. 5)
Page preview · 52f0141677a7_S1-18 · S. 5
Endress+Hauser Prosonic S FDU91F – Page preview (52f0141677a7_S1-18 S. 6)
Page preview · 52f0141677a7_S1-18 · S. 6
Source: Endress+Hauser Prosonic S FDU91F datasheet, p. 1
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