Portaflow C / FLQ-2

Water Device Instruments

FUJI Portaflow C21 (Portable Ultrasonic Flowmeter) is a highly accurate and practical flow measurement device based on ultrasonic technology. Designed for non-intrusive flow measurement, it eliminates the need to cut or shut down piping systems. With its compact design and lightweight body (±1 kg), the Portaflow C21 is ideal for field inspections and flexible applications across various industrial sectors.

Using advanced transit-time and pulse Doppler detection technology, it provides real-time measurement of fluid velocity and flow profile. Additional features include thermal energy calculation, data storage via SD card, USB connectivity to PC, and a user-friendly TFT color display. It is suitable for applications in HVAC, food processing, clean water systems, and chemical industries.

Item Specification
Model FSC (Transmitter Portaflow C21)
Detection Method Transit Time & Pulse Doppler
Applicable Fluids Homogeneous liquids (water, distilled water, alcohol, etc.)
Pipe Diameter Range 13 mm – 6000 mm (depending on sensor)
Fluid Temperature -40°C to +200°C (depending on sensor)
Flow Velocity Range 0 to ±32 m/s (min. ±0.3 m/s)
Measurement Accuracy ±1.0% of flow rate
Analog Output 4–20 mA DC (1 point)
Analog Input 4–20 mA DC (2 points) or 4–20 mA + 1–5 V DC
Display TFT Color LCD with backlight
Memory SD card 512 MB (2-year storage), expandable up to 8 GB
Connectivity USB (data transfer and parameter loading)
Battery Life Up to 12 hours continuous operation
Transmitter Dimensions 210 × 120 × 65 mm
Transmitter Weight ±1 kg
Protection Rating IP64 (non-printer version)
  • Flow measurement of water, distilled water, alcohol, and similar fluids
  • Monitoring thermal energy consumption (heating & cooling) in HVAC systems
  • Pipe inspection in food and beverage processing plants
  • Measuring corrosive fluid flow in chemical industries
  • Water usage management and conservation in building facilities
  • Flow profile visualization for fluid system optimization

Discuss Your Technical Solution

Need the right engineering solution for your project? Our expert team is ready to provide insights and the best recommendations. Send us your questions, and we’ll get back to you soon.