TI396F/00/en/07.09
71098284
Technical Information
Prosonic S
FDU90/91/91F/92/93/95/96
Ultrasonic sensors for non-contact continuous
level and flow measurement;
for connection to the transmitters FMU90 and FMU95
FDU92
FDU93
FDU95
FDU96
FDU91
FDU90
FDU91F
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
– FDU90:
3 m in fluids
1.2 m in bulk materials
– FDU91/FDU91F:
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
Your benefits
• Non-contact measurement method; minimizes service
requirements
• 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
• Reduced build-up formation because of the self-
cleaning effect
• Integrated heating against a build-up of ice at the
sensor (optional); ensures reliable measurement
• Weather resistant and flood-proof (IP68)
• Dust-Ex and Gas-Ex certificats available (ATEX, FM,
CSA)
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