Technical Specifications:

• Measurement Principle: Electromagnetic induction (Faraday’s Law)
• Nominal Pipe Size: DN50 (2 inch) — indicated by “31”
• Connection Type: Flanged (2F = Flange connection, flange standard: JIS 10K or ANSI 150)
• Lining Material: PTFE (polytetrafluoroethylene)
• Electrode Material: SUS316L stainless steel (standard), Hastelloy C, Titanium, Tantalum (options)
• Flow Range: 0.3 to 10 m/s (typical), customizable
• Accuracy: ±0.5% of reading (at flow rate ≥0.3 m/s)
• Repeatability: ±0.2%
• Output Signal: 4–20 mA DC (2-wire), pulse output, RS-485 (option)
• Power Supply: 100–240 V AC (50/60 Hz) or 24 V DC
• Display: 6-digit LCD with instantaneous flow, total flow, and bar graph
• Process Temperature: -20 to 150 °C (-4 to 302 °F) with PTFE lining
• Process Pressure: Up to 1.6 MPa (232 psi) with flange rating
• Protection Rating: IP67 (transmitter), IP68 (when submerged)
• Ambient Temperature: -20 to 60 °C (-4 to 140 °F)
• Ambient Humidity: 0 to 90% RH (non-condensing)
• Housing Material: Aluminum alloy with epoxy coating (standard), SS316L (option)
• Flange Standard: JIS 10K FF / ANSI 150 RF (per 2F specification)
• Weight: Approximately 8.5 kg (18.7 lb DN50 flanged model

Functional Features:

• Empty Pipe Detection: Automatically detects and alarms when pipe is empty
• Electrode Cleaning Indication: Monitors electrode signal quality
• Totalizer: Accumulates total flow volume with non-volatile memory backup
• Flow Direction Indication: Bi-directional measurement with directional display
• Self-Diagnostics: Sensor coil check, electrode check, and zero-point drift monitoring
• Pulse Output: Frequency output proportional to flow rate (0–10 kHz)
• Damping Adjustment: 0.1 to 100 seconds configurable signal damping

Performance Parameters:

• Minimum Conductivity: 5 μS/cm (with standard electrodes)
• Maximum Conductivity: 200 mS/cm (unlimited with capacitive-type electrodes)
• Zero Stability: ±0.1% of span per month
• Response Time: 1 second (typical, 95% of step change)
• Insulation Resistance: 100 MΩ minimum at 500 V DC
• Dielectric Strength: 1500 V AC for 1 minute (electrode to lining)
• Pressure Drop: Negligible (no obstruction in flow path)

Structural Features:

• Compact integral-type design (transmitter mounted directly on meter body)
• Flanged ends for inline installation between pipe flanges
• PTFE lining provides chemical resistance to most acids, bases, and solvents
• Remote mounting option available (transmitter separated from sensor by up to 30 m cable)
• 4-bolt flange connection for secure piping integration
• Explosion-proof version available (Ex d IIC T6)

Working Principle:
The F3LC generates a magnetic field across the pipe bore using a coil energized by the transmitter electronics. When a conductive fluid flows through the magnetic field, a voltage (EMF) is induced perpendicular to both the flow direction and the magnetic field, as described by Faraday’s Law (E = B × D × V, where B = magnetic flux density, D = pipe diameter, V = fluid velocity). Electrodes mounted flush with the PTFE lining detect this induced voltage, which is directly proportional to the average flow velocity. The transmitter converts this voltage into a 4–20 mA output signal representing volumetric flow rate.

Advantage Highlights:

• No Moving Parts: Zero pressure drop and no wear components ensure long service life
• Wide Conductivity Range: Measures from 5 μS/cm to 200 mS/cm, covering virtually all conductive liquids
• PTFE Lining: Excellent chemical resistance for aggressive process fluids
• Bi-directional Measurement: Measures flow in both directions without reconfiguration
• High Accuracy: ±0.5% of reading accuracy across the full flow range
• Non-Intrusive: Does not alter the flow profile or introduce pressure loss

Applicable Industries:

• Water and wastewater utilities
• Chemical processing (acids, alkalis, solvents)
• Food and beverage (milk, juice, beer, syrups)
• Pharmaceutical manufacturing
• Mining and slurry transport
• Pulp and paper (stock flow, white water)
• Power plant cooling water and condensate

Installation Requirements:

• Install in a full pipe section with minimum 10D upstream and 5D downstream straight pipe runs (D = pipe diameter)
• Ensure the meter is always fully filled with liquid (no partial pipe conditions)
• Mount in horizontal or vertical pipe (vertical: flow upward preferred)
• Ground the meter body and shielding ring to plant earth
• Use isolation gaskets when connecting to dissimilar metal flanges
• Keep cable runs between sensor and transmitter under 30 m (standard) or use remote cable kit

Usage Precautions:

• Do not install in pipes carrying non-conductive fluids (distilled water, oils, hydrocarbons)
• Ensure minimum fluid conductivity of 5 μS/cm for accurate measurement
• Clean electrode surfaces if signal becomes noisy or unstable
• Do not exceed maximum process temperature of 150 °C with PTFE lining
• Avoid installing near strong electromagnetic fields (large motors, transformers) without proper shielding
• Perform zero calibration with pipe full of stationary fluid before initial startup