Endress Hauser Ultrasonic measurementTime-of-Flight ProsonicFDU95-R1G1A

Field of application

The FDU95 ultrasonic sensor for continuous, non-contact and maintenance-free level measurement of powdery to coarse bulk materials. The measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of sensors. Suited for explosion hazardous areas. Maximum measuring range in solids 45m (148ft).

Sensor for continuous, non-contact level measurement of bulk materials in silos, on belts, stockpiles and in crushers. Typically used in measurements in low structural heights.

• Process connection: Thread

• Temperature: -40 to +80°C or +150°C (-40 to +176°F or +302°F)

• Pressure: +0.7 to +1.5bar (+10 to +22psi)

• Maximum measuring range: Solids 45m (148ft)

• Blocking distance: 0.7m / 80°C (2.3ft), 0.9m / 150°C (2.9ft)

• International explosion protection certificates

Potentiometric

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...80 °C

or 150 °C,

(-40 °F...176 °F

or 302 °F)

Process temperature

-40 °C...80 °C

or 150 °C,

(-40 °F...176 °F

or 302 °F)

Process pressure / max. overpressure limit

0.7 bar...1.5 bar abs

(10 psi...22 psi)

Main wetted parts

UP (unsaturated polyester)

Process connection

G / NPT 1"

Max. measurement distance

45 m (148 ft)

Communication

Transmitter:

4...20 mA HART

PROFIBUS DP

Certificates / Approvals

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

Options

Second 4...20 mA output

Components

Transmitter:

FMU90, FMU95