FDU91F Ultrasonic Measurement Time-of-Flight Prosonic
FDU91F Ultrasonic Measurement Time-of-Flight Prosonic
FDU91F Ultrasonic Measurement Time-of-Flight Prosonic

FDU91F Ultrasonic Measurement Time-of-Flight Prosonic

$390.00

Endress+Hauser

The FDU91F ultrasonic sensor for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials.

Fully welded 316L with hygienic process connection available. Maximum measuring range in liquids 10m (33ft), solids 5m (16ft).

  • Process connections: Thread, Tri-Clamp

  • Temperature: -40 to +105°C (-40 to +221°F)

  • Pressure: 0.7 to 4bar (10 to 58psi)

  • Blocking distance: 0.3m (1ft)

 

SKU: FDU91F Categories: , Tags: ,

Description

Field of application

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).

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

  • Process connections: Thread, Tri-Clamp

  • Temperature: -40 to +105°C (-40 to +221°F)

  • Pressure: 0.7 to 4bar (10 to 58psi)

  • Max. measuring range: Liquids 10m (33ft), solids 5m (16ft)

  • Blocking distance: 0.3m (1ft)

  • International explosion protection certificates, hygienic certificates

Benefits

  • Integrated temperature sensor for Time-of-Flight correction. Accurate measurements are possible, even if temperature changes are present

  • Hermetically welded sensors (316L, 1.4404, 1.4435) for highest chemical resistance

  • 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)

  • Hygienic process connections available

Additional information

Brand

Endress+Hauser/E+H
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, EAC 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

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