FDU93 Ultrasonic measurement sensor

Product Item : FDU93-RG2A
Category： Level
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)
Max. measurement:distance 10 m (33 ft)
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Endress Hauser FDU93 Prosonic Ultrasonic Measure Instruments

Ultrasonic sensor for level and flow measurement for connection to FMU9x (measuring range
up to 25m)

The FDU93 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 25m (85ft), solids 15m (50ft).

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.

l Process connection: Thread

l Temperature: -40 to +95°C (-40 to +203°F)

l Pressure: +0.7 to +3bar (+10 to +43psi)

l Maximum measuring range: Liquids 25m (85ft), solids 15m (50ft)

l Blocking distance: 0.6m (2ft)

l 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 seonsor 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	25 m (85 ft)
Output	Transmitter: 4 ... 20 mA HART Profibus DP
Certificates / Approvals	ATEX, FM, CSA, IEC Ex, NEPSI
Options	Second 4...20mA output
Components	Transmitter: FMU90, FMU95