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Sight flow indicator/transmitter

( Dwyer )

General

The SFI-100T is a low cost and durable flow transmitter that combines our popular 100 Series Sight Flow indicator with our A-711T output sensor. The SFI-100T sight flow indicator is constructed of a robust, solid brass body and a tempered glass window. A bright red impeller is featured for great visual indication

of flow through the window. The front window can be easily unscrewed to clean out the sight flow indicator. Ideal for outdoor applications, the flow transmitter is weatherproof and unaffected by UV light.

 

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. Great for use in monitoring water flow especially in chillers.

FEATURES

            • Output package is easily field replaceable

            • Weatherproof construction

            • UV stabilized for outdoor applications

            • There are no magnets in the rotor to attract

               ferrous materials

 

APPLICATIONS

            •Monitor chilled of hot water flow

            •Great for use in monitoring water flow in chillers

 

Technical specifications:

Service

Compatible liquids.

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

 

 

Electrical Specifications (For A-711t Option Only)

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 Connections

Black lead: Ground; White lead: 5 VDC out pulse; Green lead: 8 to 28 VDC out pulse; Red lead: 8 to 28 VDC supply.