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Paddlewheel Flow Sensors

The materials included in this compilation are for the use of Dwyer Instruments, Inc. potential customers and current employees as a resource only. They may not be reproduced, published, or transmitted electronically for commercial purposes. Furthermore, the Company’s name, likeness, product names, and logos, included within these compilations may not be used without specific,

written prior permission from Dwyer Instruments, Inc. ©Copyright 2014 Dwyer Instruments, Inc.

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Overview

PFT - Paddlewheel Flow Transmitter

IPFS - Paddle Flow Sensor

PDWS - Paddle Flow Sensor

DFMT/DFMT2 - Digital Paddle Flow Transmitter

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Operation Principle

Paddlewheel Flow Sensors

Minimally invasive monitoring of fluid velocity in industrial pipesCost effective in comparison to other technologies

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PFT - Introduction

Paddlewheel transmitterInductive rotor sensing, no magnets

Good for magnetic materials

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PFT - Specifications

Adjustable from 1-1/2 to 40” (38 to 1016 mm) pipes1.2 to 25 ft/s (0.37 to 7.62 m/s)Linearity ±1% full rangeRepeatability ±0.5% full rangeNEMA 6P (IP69)

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PFT - Features

One unit adjustable for range of pipe sizes

1-1/2 to 40” (76 to 1016 mm)

Pulse or 4-20 mA output signalIn one unit with no need for converter

Brass or stainless body, variety of o-ringsLow friction bearings

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IPFS - Introduction

Adjustable insertion paddlewheel transmitterHall Effect sensor with pulse signal output

Good for low flow

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IPFS - Specifications

Adjustable between 3 to 40” (76 to 1016 mm) pipes0.3 to 30 ft/s (0.09 to 9.14 m/s)Accuracy ±1.5% full rangeNEMA 4X (IP66)

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IPFS - Features

Adjustable for range of pipe sizesBrass, PVC, or stainlessHot tap option (brass or stainless)Use with Series SDF fittingsOptional bi-directional sensor

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SDF FittingsUse with PFT and IPFS sensorsBrass or iron, 3 to 24” (76 to 609 mm) pipe size

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PDWS - Introduction

Fixed insertion paddlewheel transmitterHall Effect sensor with pulse signal output

Good for low flow

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PDWS - Specifications

Pipe sizes ½ to 8” (12.7 to 203 mm)0.3 to 30 ft/s (0.09 to 9.14 m/s)Accuracy ±1.5% full rangeNEMA 4X (IP66)

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PDWS - Features

Brass, stainless, PVC, or polypropylene bodyUse with Series PWF fittings and teesHigh pressure optionsImmersion options

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PWF - Fittings

Use with PDWS sensorBronze, PVC, SS, and steel½ to 8” pipes

(12.7 to 203 mm)

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DFMT & DFMT2 - Introduction

Digital paddlewheel sensorHall Effect sensor with analog or pulse output

Good for low flow

DFMT

DFMT2

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DFMT & DFMT2 - Specifications

Sizes from 3/8 to 2” NPT ( 9.5 to 51 mm)Measures flow from 0.5 to 180 GPM (0.1 to 40.0 m3/h)Accuracy ±1.5% full rangeIP65 ratingOptional RS485 communications

DFMT

DFMT2

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DFMT & DFMT2 - Features

Measures instantaneous and total flowResettable totalizerUser selectable 4-20mA or pulsed outputEasy to use push buttons for programmingPassword Protection

DFMT

DFMT2

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BAT Transmitter

Blind Analog TransmitterUse with IPFS and PDWSConverts pulse to 4-20mAMeter or wall mount

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RTI Transmitter

Rate/Total IndicatorUse with IPFS and PDWSConverts pulse to 4-20mAMeter, panel, or wall mount

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PWD Pulse Divider

Pulse DividerUse with any pulse output transmitterPace electronic pumps

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Applications

IrrigationGround water remediationCooling systemsPump flow provingChemical ProportioningReverse Osmosis

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Irrigation

Monitor water flow rate for pivot irrigation systems and drip irrigation systemsEnsure proper water transfer

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Groundwater Remediation

Monitor flow rate of water usage from water source for the purpose of cleaning water source

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Cooling SystemsMonitor water flow in and out of cooling system Use for obtaining BTU usage and monitoring efficiency with BAS system

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Chemical Proportioning

Pump proving

Continuous monitoring of chemical usage for ideal chemical proportioning or dosing

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Reverse Osmosis

Monitor water flow in and out of water filtration systemDetermine amount of water being processed

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The materials included in this compilation are for the use of Dwyer Instruments, Inc. potential customers and current employees as a resource only.  They may not be reproduced, published, or transmitted electronically for commercial purposes.  Furthermore, the Company’s name, likeness, product names, and logos, included within these compilations may not be used without specific, written prior permission from Dwyer Instruments, Inc.   ©Copyright 2014 Dwyer Instruments, Inc.