Dwyer Instruments SERIES SFI-800 Catalog Page

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REMOVAL

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SERIES SFI-800 | W. E. ANDERSON® BY DWYER

FLOW

SIGHT FLOW INDICATORS/TRANSMITTERS

Low Cost, Optional Output for Flow Rate and Totalization UV Stabilized Polycarbonate Model

SFI-801 SFI-800 SFI with A-711 option

The Series SFI-800 Sight Flow Indicators/Transmitters are low cost, durable rotor

style ow indicators with optional Hall Effect magnetic output packages to combine visual conrmation of ow with optional remote ow monitoring. There are three output sensors available, the A-711 offering two pulsed voltage signals proportional to ow rate, the A-712 which outputs a linear 1-10 VDC signal proportional to ow rate, and the A-713 which offers two programmable open collector switch outputs. The Model A-711 is a unique and patent pending sensor that outputs two pulsed voltage signals with one providing a 5 VDC pulse and the other a pulse of the input supply voltage used, ranging from 8-18 VDC. The Model A-712 is a sensor that outputs a linear 1-10 VDC signal proportional to ow rate. The Model A-713 is a sensor with two programmable open collector switch outputs with one output closed above the set point and the other output closed below the set point ideal for low ow or high ow indication.

FEATURES/BENEFITS

• Constructed of clear plastic enabling 360° viewing of the rotor for easy ow indication

• SFI-800 models are constructed of Polysulfone with excellent chemical compatibility, high pressure and temperature ratings, and all wetted materials are FDA/NSF ratable for potable water applications

• SFI-801 models are constructed of UV stabilized Polycarbonate making them ideal for outdoor applications and easy view bright red impeller

• All three output packages cam be installed or replaced in the eld without any tools and without removing the body from the process line

• Units are weather-tight for outdoor or wash-down area use

• A-713 features a user-friendly set point button which is set at the desired ow rate with red LED indication of switch status

APPLICATIONS

• Cooling and lubrication circuits

• HVAC systems

• Aggressive chemical metering

• Batching systems

MODEL CHART - BODY ONLY Polysulfone Body Model Description Range GPM (LPM) SFI-800-1/2 SFI-800-3/4 SFI-800-1/2-LF Polycarbonate Body Model Description Range GPM (LPM) SFI-801-1/2 SFI-801-3/4 SFI-801-1/2-LF

Indicator only Indicator only Indicator only

MODEL CHART - SENSOR ONLY Model Description A-711

Pulsed output

A-712

1-10 VDC

A-713

Two open collectors *Sensor only, not attached to the ow indicator body.

Connection

2 to 20 (7.6 to 75.5) 3 to 35 (11.4 to 132.5)

0.5 to 6.5 (1.9 to 24.6)

2 to 20 (7.6 to 75.5) 3 to 35 (11.4 to 132.5)

0.5 to 6.5 (1.9 to 24.6)

Female NPT

1/2˝ 3/4˝ 1/2˝

Connection Female NPT

1/2˝ 3/4˝ 1/2˝

SPECIFICATIONS Service: Compatible uids. Wetted Materials: Body: SFI-800:

Polysulfone; SFI-801: UV stabilized polycarbonate; Window: SFI-800: Polysulfone; SFI-801: UV stabilized polycarbonate; Rotor: SFI-800: White polysulfone; SFI-801: Red UV stabilized PBT; Rotor Pin: 316 SS; Thrust washers: 300 Series SS; O-ring: SFI-800: Fluoroelastomer (NSF grade); SFI-801: Buna-N. Temperature Limits: SFI-800: -20 to 212°F (-29 to 100°C); SFI-801: -20 to 130°F (-29 to 55°C). Pressure Limits: SFI-800: 150 psi (10.34 bar); SFI-801: 125 psi (8.62 bar).

Viscosity Max: 200 SSU. Weight: SFI-800: 3.35 oz (95 g); SFI-

800-A711: 5.0 oz (142 g).

ELECTRICAL SPECIFICATIONS (for A-711 Option Only) 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. Electrical Connections: Black lead -

ground; White lead: 5 VDC out pulse; Green lead: 8-28 VDC out pulse; Red lead: 8-28 VDC supply.

OPTIONS - BODY AND SENSORS ATTACHED To order add sufx: Description

-A711 A-711 attached to ow indicator body Example: SFI-800-1/2-A711

-A712 A-712 attached to ow indicator body Example: SFI-800-1/2-A712

-A713 A-713 attached to ow indicator body Example: SFI-800-1/2-A713

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[4] 13/64 DIA [5.16]

HOLE ON 2-1/2 DIA [63.5]

BOLT CIRCLE

[4] 1/4 DIA [6.35]

HOLE ON 2-1/2 DIA [63.5]

BOLT CIRCLE

2-1/32 [51.59]

PANEL MOUNT

CUTOUT

SFI with A-711 option SFI model only

2-1/2

[63.50]

2-13/16

[71.44]

ELECTRICAL SPECIFICATIONS (for A-712 option only) Temperature Limits: -20 to 212°F (-29

to 100°C).

Power Requirements: 15-28 VDC. Output Signal: White lead: 1-10 VDC. Accuracy: ±5% FS. Electrical Termination: Black lead:

Ground; Red lead: 15-28 VDC input; White lead: 1-10 VDC output.

ELECTRICAL SPECIFICATIONS (for A-713 option only) Temperature Limits: -20 to 212°F (-29

to 100°C).

Power Requirements: 8-28 VDC. Output Signal: White lead: Normally

open switch; Green lead: Normally closed switch. Both open collector, 100 mA max, 28 VDC max. Electrical Connections: Black lead: Ground; White lead: Normally open; Green lead: Normally closed; Red lead: 8-28 VDC.

1/2 OR

3/4 NPT

2 [50.80]

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CLEARANCE

2-1/4 [57.15]

Paddlewheel, In-Line

Flow Transmitters,