Specs at a glance
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Accuracy
+/- 2 mm + 0.17% of measured distance
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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) -
Max. measurement distance
45 m (148 ft)
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Main wetted parts
UP (unsaturated polyester)
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
Benefits
Integrated temperature sensor for Time-of-Flight correction. Accurate measurements are possible, even if temperature changes are present
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)
Non-contact measurement method minimizes service requirements
International Dust-Ex and Gas-Ex certificates available
Videos
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| FLEX selections | Technical excellence | Simplicity |
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Predecessor
Success stories
Most downloaded
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Case Study (CS)
Ultrasonic transmitter FDU95 and FMU90 processes bulk pellet feed for farm animals
English version - 07/2010
Suitable for narrow silos filled with corn, barley wheat and soy where environment is dusty.
Language:
English
Version:
01/07/2010
File size:
143.4 KB
File name:
CS1244 FDU95 and FMU90 in silos.pdf
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56 documents
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Technical Information (TI)
TI Weld-in adapter, process adapter and flanges
Level, pressure and temperature measurement
EN 06/12/202425/03/202415/09/202328/10/202130/07/2021Language:
English
Version:
06/12/2024
File size:
1.3 MB
File name:
TI00426FEN_2624.pdf
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Technical Information (TI)
Prosonic S FDU90, FDU91, FDU91F, FDU92, FDU93, FDU95
Ultrasonic measuring technology
EN 25/01/201808/09/201516/01/201302/04/201231/03/2011Language:
English
Version:
25/01/2018
File size:
1013 KB
File name:
TI00396FEN_1818.pdf
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Technical Information (TI)
FAU40 alignment unit
Installation accessory for ultrasonic or microwave sensors with cable
connectionEN 01/03/202106/09/200501/07/2003Language:
English
Version:
01/03/2021
File size:
446.3 KB
File name:
TI00179FEN_1021.pdf
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Technical Information (TI)
Prosonic S FDU95
Ultrasonic measuring technology
EN 14/09/2020Language:
English
Version:
14/09/2020
File size:
688.2 KB
File name:
TI01474FEN_0120.pdf
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Operating Instruction (BA)
BA Prosonic S FMU95 PROFIBUS DP
Ultrasonic measuring technology
Level measurement
5 or 10 sensorsEN 28/04/202531/05/202117/08/202002/04/201208/09/2009Language:
English
Version:
28/04/2025
File size:
2.8 MB
File name:
BA00344FEN_1725-00.pdf
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Ex Safety Instruction (XA)
Prosonic S FDU90, FDU91, FDU91F, FDU92, FDU93, FDU95
II 2 G Ex ma IIC T5 Gb
II 2 G Ex ma IIC T6 Gb
II 1/2 D Ex ta/tb IIIC Txx°C Da/Db
II 2 D Ex tb IIIC Txx°C DbLanguage:
English
Version:
20/12/2021
File size:
416.7 KB
File name:
XA02643FEN_0121-00.pdf
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Ex Safety Instruction (XA)
Prosonic S FDU93, FDU95
Ex tD A20/21 IP65 T*
EN 10/05/202101/08/201605/03/2012Language:
English
Version:
10/05/2021
File size:
495.5 KB
File name:
XA00667FEN_0321.pdf
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Ex Safety Instruction (XA)
Prosonic S FDU93, FDU95
Ex ta/tb IIIC T**°C Da/Db X
Ex tb IIIC T**°C Db XEN 11/07/202226/03/2018Language:
English
Version:
11/07/2022
File size:
400 KB
File name:
XA01391FEN_0222-00.pdf
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Ex Safety Instruction (XA)
Prosonic S FDU90, FDU91, FDU91F, FDU92, FDU93, FDU95
Ex ma IIC T* Gb
Ex ta/tb IIIC T** Da/Db
Ex tb IIIC T** DbEN 27/06/202222/01/2015Language:
English
Version:
27/06/2022
File size:
429.4 KB
File name:
XA01343FEN_0222-00.pdf
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Ex Safety Instruction (XA)
Prosonic S FDU90, FDU91, FDU91F, FDU92, FDU93, FDU95, FDU96
IECEx BVS 08.0012
Ex ma IIC Tx Gb
Ex ta/tb IIIC Txx°C Da/Db IP68
Ex tb IIIC Txx°C Db IP68EN 31/12/201001/11/2008Language:
English
Version:
31/12/2010
File size:
283.3 KB
File name:
XA00481FEN_1310.pdf
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