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Ruby bearings and a non-drag pick-off give these adjustable insertion flow sensors the widest flow range of any of the paddlewheel types. A Hall-effect device detects the passage of miniature magnets in the six rotor blades. The resulting square-wave signal can be sent hundreds of feet without a transmitter, over unshield cable. This signal can be connected directly to many PLCs and other controls without additional electronics. A depth adjustment system allows two basic sizes to cover pipe sizes from 7.62 to 102 cm (3 to 40″).

SPECIFICATIONS

• Power: 5 to 24 Vdc, 1.5 mA
• Signal: Square wave, 11 Hz/fps (approx.), current sinking output, 20 mA maximum, NPN (Hall Effect)
• Cable: #22 AWG 3-conductor, 6 m (18′) standard; 650 m (2000′) max
• Accuracy: ±1.5% of full range
• Range: 0.3 to 30 fps
• Maximum Working Pressure: 14 bar (200 psi) at 24°C (75°F)
• Maximum Temperature: 93°C (200°F) at 0 psig

Materials

• Probe Body: Brass or 316 SS
• Rotor: PVDF
• Shaft: Nickel-bound Tungsten Carbide standard, ceramic optional
• Bearings: FP6501/FP6502: Ruby ring, ruby end stone, set in PVDF bearing holder, FP6511/FP6512: Bronze Ball Valves standard, 316SS optional 

Shipping Weight:

• FP6501: 1.8 kg (4 lb)
• FP6502: 2.3 kg (5 lb)
• FP6511: 5.9 kg (13 lb)
• FP6512: 6.8 kg (15 lb)

Pipe Size Range:

• FP6501/FP6511: 7.62 to 31 cm (3 to 12″)
• FP6502/FP6512: 31 to 102 cm (12 to 40″)

Fitting Size:

• FP6501/6502: 1½ MNPT
• FP6511/6512: 2 MNPT