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.

Overview

PFT - Paddlewheel Flow Transmitter

IPFS - Paddle Flow Sensor

PDWS - Paddle Flow Sensor

DFMT/DFMT2 - Digital Paddle Flow Transmitter

Operation Principle

Paddlewheel Flow Sensors

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

PFT - Introduction

Paddlewheel transmitterInductive rotor sensing, no magnets

Good for magnetic materials

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)

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

IPFS - Introduction

Adjustable insertion paddlewheel transmitterHall Effect sensor with pulse signal output

Good for low flow

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)

IPFS - Features

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

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

PDWS - Introduction

Fixed insertion paddlewheel transmitterHall Effect sensor with pulse signal output

Good for low flow

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)

PDWS - Features

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

PWF - Fittings

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

(12.7 to 203 mm)

DFMT & DFMT2 - Introduction

Digital paddlewheel sensorHall Effect sensor with analog or pulse output

Good for low flow

DFMT

DFMT2

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

DFMT & DFMT2 - Features

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

DFMT

DFMT2

BAT Transmitter

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

RTI Transmitter

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

PWD Pulse Divider

Pulse DividerUse with any pulse output transmitterPace electronic pumps

Applications

IrrigationGround water remediationCooling systemsPump flow provingChemical ProportioningReverse Osmosis

Irrigation

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

Groundwater Remediation

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

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

Chemical Proportioning

Pump proving

Continuous monitoring of chemical usage for ideal chemical proportioning or dosing

Reverse Osmosis

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

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.