Dwyer Instruments SERIES SFI-100T Catalog Page
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SERIES SFI-100T | W. E. ANDERSON® BY DWYER
[58.74]
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REMOVAL
[13.50]
SIGHT FLOW INDICATOR/TRANSMITTER
Output for Flow Rate and Totalization
2 [50.80]
3/4 NPT
2 PLCS
The Series
transmitter that combines our popular 100 Series Sight Flow Indicator with our A-711T
output sensor for visual and remote monitoring of ow. 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 8-28 VDC and a pulsed output with a
frequency change proportional to the ow rate.
FEATURES/BENEFITS
• Constructed of a robust, solid brass body and a tempered glass window
• Bright red impeller yields great visual indication of ow through the window
• Front window can be easily unscrewed to clean out the sight ow indicator
• Ideal for outdoor applications with weatherproof body that is unaffected by UV light
APPLICATIONS
• Cooling and lubrication circuits
• HVAC systems
MODEL CHART
Model Description Range GPM (LPM) Connection Female NPT
SFI-100T-1/2-A711T
SFI-100T-3/4-A711T
A-711T
SFI-100T Sight Flow Indicator/Transmitter is a low cost and durable ow
• Monitoring chilled or hot water ow
• Monitoring water ow in chillers
Brass indicator with A-711T sensor
Brass indicator with A-711T sensor
Output sensor package
2 to 20 (7.6 to 75.5)
3 to 35 (11.4 to 132.5)
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SPECIFICATIONS
Service: Compatible uids.
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 Max: 200 SSU.
Weight: SFI only: 1.5 lb (0.7 kg); with
A-711T: 1.8 lb (0.8 kg).
1/2˝
3/4˝
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ELECTRICAL SPECIFICATIONS
Temperature Limits: -20 to 212°F (-29
to 100°C).
Power Requirements: 8-28 VDC.
Output Signal: White lead: 5 VDC.
Green lead: 8-28 VDC equal to supply
voltage. Pulsed output with frequency
rate proportional to ow rate.
Accuracy: ±5% FS.
Frequency Output Range: 0 to 100 Hz.
Mounting Orientation: Horizontal.
Electrical Connections: Black lead:
Ground; White lead: 5 VDC out pulse;
Green lead: 8-28 VDC out pulse; Red
lead: 8-28 VDC supply.
++ USA: California Proposition 65
WARNING: Cancer and Reproductive Harm
- www.P65Warnings.ca.gov
DWYER INSTRUMENTS, INC.
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