Endress+Hauser Prosonic S FDU91 Technical Information

Technical Information
Prosonic S
FDU91, FDU92, FDU93, FDU95, FDU96
Ultrasonic sensors for non-contact continuous
level and flow measurement;
for connection to the transmitter FMU90
FDU91
Application
• Continuous, non-contact level measurement of fluids,
pastes, sludges and powdery to coarse bulk materials
• Flow measurement in open channels and measuring
weirs
• Maximum measuring range
– FDU91:
10 m in fluids
5 m in bulk materials
– FDU92:
20 m in fluids
10 m in bulk materials
– FDU93:
25 m in fluids
15 m in bulk materials
– FDU95:
45 m in bulk materials
– FDU96:
70 m in bulk materials
• Suited for explosion hazardous areas
TI396F/00/en/12.04
52024314
FDU92
FDU93
FDU95
Your benefits
• Non-contact measurement method, therefore almost
independent of product properties
• Integrated temperature sensor for time-of-flight
correction. Accurate measurements are possible, even
if temperature changes are present
• Hermetically welded PVDF sensors FDU91/92 for
fluid measurement; for highest chemical resistance
• Integrated automatical sensor detection for
transmitters FMU90; simple commissioning
• Can be installed up to 300 m from the transmitter
• Suited for rough ambient conditions thanks to separate
installation from the transmitter
• Insensitive to dirt and build-up because of the self-
cleaning effect
• Integrated heating against a build-up of ice at the
sensor (optional)
• Weather resistant and flood-proof (IP68)
• Dust-Ex and Gas-Ex certificats available (ATEX, FM,
CSA)
FDU96