FPB100-Series

Supported Applications

The Omega FPB100 Series is a general purpose paddlewheel flow meter designed for chemical processing, water and wastewater monitoring, and scrubber control. The series offers low flow capabilities starting at 0.1 m/s (0.3 ft/s) with high resolution suitable for industrial environments.

Operating Conditions & Performance

The FPB100 Series operates within a process temperature range of 0 to 65 °C (32 to 149°F). Ambient operating temperatures are rated from -18 to 85°C (0 to 185°F) for both Polypropylene and PVDF housings. The device features an accuracy of ±1% of max range at 25°C (77°F) with a repeatability of ±0.5% of max range at the same condition.

• Measurement Range: 0.1 m/s to 6 m/s (0.3 ft/s to 20 ft/s)
• Response Time: 100 ms update rate nominal
• Resolution: 5 μA (Loop Resolution for 4-20 mA models)
• Hysteresis: Adjustable in engineering units
• Enclosure Rating: NEMA 4X (IP65) enclosure
• Humidity: 0 to 90% RH, non-condensing

Pressure ratings vary by material and temperature. For Polypropylene bodies, the rating is 12.5 bar @ 20°C (180 psi @ 68°F) decreasing to 1.7 bar @ 85°C (25 psi @ 185°F). PVDF bodies are rated at 14 bar @ 20°C (200 psi @ 68°F), also reducing to 1.7 bar @ 85°C (25 psi @ 185°F).

Configuration Options

The series supports pipe sizes from DN15 to DN200 (½ in. to 8 in.) with installation fittings sold separately. Models are available in Polypropylene or PVDF sensor bodies, configured for specific output types and relay options.

• Output Signals: Volumetric Pulse, Pulse Divider Output, Flow Switch (SPDT dry-contact relay or Solid-State Relay), and 4 to 20 mA
• Sensor Body Materials: Polypropylene or PVDF
• Rotor Options: Black PVDF for Polypropylene models; Natural PVDF for PVDF models
• Pin Material: Titanium (Polypropylene models) or PVDF, Natural (PVDF models)
• O-ring: FPM
• Electrical Connection: 4-conductor shielded cable, 30 m (100')
• Housing Dimensions:
  • For ½ to 4 inch pipe: 97 mm width x 130 mm height (approx. 3.82 in. x 5.12 in.)
  • For 5 to 8 inch pipe: 97 mm width x 171 mm height (approx. 3.82 in. x 6.73 in.)

The device includes a built-in user interface with an LCD for on-site configuration. Power supply requirements depend on the output model: 10.8 Vdc to 35.2 Vdc (for 4-20 mA); 5.0 Vdc to 26.4 Vdc (for SSR); and 21.6 Vdc to 26.4 Vdc (for dry-contact relay).

Key Product Differences

The FPB100 Series is differentiated by sensor body material, pipe size range, and output configuration.

• Polypropylene Models: Available for ½ to 4 inch pipes (e.g., FPB111, FPB121) or 5 to 8 inch pipes. These models utilize a Titanium rotor pin and Black PVDF rotor.
• PVDF Models: Designed for chemical resistance in specific applications, available for ½ to 4 inch pipe sizes (e.g., FPB131, FPB123). These feature Natural PVDF rotors and pins.
• Output Configurations:
  • Pulse Divider with SPDT Relay or SSR
  • Flow Switch with SPDT Relay or SSR
  • Analog 4 to 20 mA output (available in Polypropylene for both pipe size ranges and PVDF for smaller pipes)

Note: Installation fittings such as PVC SCH 40, stainless steel, galvanized iron, copper, or fiberglass tees are sold separately. The series is not approved for use in flammable liquids or hazardous locations.