Dwyer SFI 100T series

The A-711T output sensor has a VDC output with pulsing for flow totalization and a proportional frequency change for flow rate. For added versatility there are two output choices of 5 VDC or a VDC equal to the input power supplied. The output is compatible with digital rate meters/totalizers and other electronic systems.

• Monitor chilled or hot water flow

• Great for use in monitoring water flow in chillers




• Output package is easily field replaceable

• Weatherproof construction

• UV stablized for outdoor applications

• There are no magnets in the rotor to attract ferrous materials




Service: Compatible fluids.

Wetted Materials: Body: brass; Window: tempered glass; Rotor: red UV stabilized PBT; Rotor Pin: 316 stainless steel; Thrust Washers: 300 series stainless steel; Gasket: Buna-N.

Temperature Limits: -20 to 200°F (-29 to 93°C).

Pressure Limits: 125 psi (8.62 bar).

Viscosity Maximum: 200 SSU.

Weight: SFI Only: 1.5 lb (0.7 kg); with A-711T: 1.8 lb (0.8 kg).


Temperature Limits: -20 to 212°F (-29 to 100°C).

Power Requirements: 8 to 28 VDC.

Output Signal: White Lead: 5 VDC; Green Lead: 8 to 28 VDC equal to supply voltage. Pulsed output with frequency rate proportional to flow rate.

Accuracy: ±5% of F.S.

Frequency Output Range: 0 to 100 Hz.

Electrical Termination: Black Lead: ground; White Lead: 5 VDC out pulse; Green Lead: 8 to 28 VDC out pulse; Red Lead: 8 to 28 VDC supply.