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Transcript of Www.hvac.vn Paddlewheel Flow Sensors The materials included in this compilation are for the use of...
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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.