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OVAL GEAR FLOW SENSOR – FLS F3.80

The FLS Oval Gear Flow sensors F3.80 have been designed following the main industrial application requirements: high mechanical resistance and reliable performances. These sensors are suitable to measure a wide range of viscous solid-free liquids with a very high accuracy and repeatability. The sensors can be fixed to flexible or rigid pipes via1/4” GAS threaded process connections. The construction materials, ECTFE (Halar®) or PP or Stainless steel, provide high strength and chemical resistance.

APPLICATIONS

• Chemical industry
• Laboratory plants
• Dosing systems
• Pulsating flows measurement
• High viscosity and not conductive fluid measurement
• Oil measurement

MAIN FEATURES

• Compact dimensions
• Easy installation
• High chemical resistance
• High viscosity fluids measurement
• Low pressure loss

Technical Data

General

• Flow Rate Range:
– F3.81.H: 10 to 100 l/h (0.044 up to 0.44 gpm)
– F3.82.H: 25 to 150 l/h (0.11 up to 0.66 gpm)
• Linearity: 1 % of full scale
• Repeatability: < 0,3% of full scale
• Working Temperature: -10°C to 60°C (14°F to 140°F)
• Max. Fluid Viscosity : 1000 cP (mPas)
• Working Pressure:
– PP body:
6 bar (87 psi) @ 25°C (77°F)
3 bar (44 psi) @ 60°C (140°F)
– ECTFE body:
8 bar (116 psi) @ 25°C (77°F)
5 bar (73 psi) @ 60°C (140°F)
– SS body:
8 bar (116 psi) @ 60°C (140°F)
• Enclosure: lP65
• Wetted Materials:
– PP version:
sensor body: PP
o-ring: FPM
gear: ECTFE (Halar)
shaft: zircone
– ECTFE version:
sensor body: ECTFE (Halar)
o-ring: FPM
gear: ECTFE (Halar)

shaft: Stainless Steel
• Connections: 1/4” GAS female
• Cable length: 2 m (6.5 ft) standard

Specific for F3.81.H

• Supply voltage: 5 to 24 VDC ±10%, regulated
• Supply current: < 15 mA @ 24 VDC
• Output signal: square wave Cmos (NPN / PNP)
• Signal type: Push-Pull (for connection to NPN and
PNP inputs)
• K-factor = 5950 Pulses/Liter (22521 Pulses/U.S.
Gallon)

Specific for F3.82.H

• Supply voltage: 5 to 24 VDC ±10%, regulated
• Supply current: < 15 mA @ 24 VDC
• Output signal: square wave Cmos (NPN / PNP)
• Signal type: Push-Pull (for connection to NPN and
PNP inputs)
• K-factor = 3400 Pulses/Liter (12869 Pulses/U.S.
Gallon)

Standards & Approvals

• Manufactured under ISO 9001
• Manufactured under ISO 14001
• CE
• RoHS Compliant
• EAC

DIMENSIONS

1 ECTFE Halar® oval gears
2 1/4” GAS threaded pipe connection
3 Electrical cable: 2m. (6.5 ft) standard
4 Completely encapsuled electronics
5 PP or ECTFE Halar® (registered
trademark of Ausimont-Solvay) or SS
sensor body

WIRING CONNECTIONS

WIRING CONNECTIONS

F3.8X.H Sensor Connection

Flow Measurement System

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