Dwyer Series SFI-100T Sight Flow Indicators & Transmitters is a low cost and durable flow transmitter that combines our popular 100 Series Sight Flow Indicator with our A-711T output sensor for visual and remote monitoring of flow. The A-711T output sensor has two pulsed voltage signals with one providing a 5 VDC pulse, the other a pulse of the input supply voltage used, ranging from 8 to 28 VDC, and a pulsed output with a frequency change proportional to the flow rate.
- Monitor chilled or hot water flow
- Monitoring water flow in chillers
- Cooling and lubrication circuits
- HVAC systems
Service : Compatible fluids.
Wetted Materials : Body: Brass; Window: Tempered glass; Rotor: Red UV stabilized PBT; Rotor pin: 316 SS; Thrust washers: 300 series SS; 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 FS.
Frequency Output Range : 0 to 100 Hz.
Mounting Orientation : Horizontal.
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.