Endress+Hauser FDU91-RG2AA Ultrasonic measurement Time-of-Flight Prosonic

Endress+Hauser FDU91-RG2AA Ultrasonic measurement Time-of-Flight Prosonic

Description:

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

Product name : Prosonic S FDU91

Extended order code : FDU91-RG2AA

R-Approval : Non-hazardous area

G-Process Connection : Thread ISO228 G1, PVDF

2-Cable Length:10m/32ft

A-Heater:W/o

A- Additional Option : Basic version

Shipping Weight : 2 Kg

Additional Informaiton:

The FDU91 ultrasonic sensor for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. But also for flow measurement in open channels and measuring weirs. 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 liquids 10m (33ft), solids 5m (16ft).

Benefits

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

Hermetically welded PVDF sensor 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)

Integrated heating against a build-up of ice at the sensor (optional) ensures reliable measurement

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Field of application

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 +80°C (-40 to +176°F)

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

Maximum measuring range: Liquids 10m (33ft), solids 5m (16ft)

Blocking distance: 0.3m (1ft)

International explosion protection certificates

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Features and specifications

Continuous / Solids
Continuous / Liquids
Liquids
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 ... 80 °C
(-40 °F ... 176 °F)

Process temperature
-40 °C ... 80 °C
(-40 °F ... 176 °F)

Process pressure absolute / max. overpressure limit
0.7 bar ... 4 bar abs
(10 psi ... 58 psi)

Main wetted parts
PVDF (fully welded IP68 / NEMA 6P)

Process connection
G / NPT 1"

Blocking distance
0.3 m (1 ft)

Max. measurement distance
5 m (16ft)

Communication
Transmitter:
4 ... 20 mA HART
Profibus DP

Certificates / Approvals
ATEX, FM, CSA, IEC Ex, JPN Ex, INMETRO, NEPSI, EAC Ex

Options

Second 4...20mA output

Components
Transmitter:FMU90

Common Models: