PFT Insertion Paddle Wheel

Flow Sensor

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PFT Flow Transmitter

Insertion Paddlewheel

Transmitter

A square wave output

signal is generated with

frequency proportional

to flow velocity

Features

Bearings and shaft offer

excellent wear protection

even in applications with

particulate for long life

Weatherproof and

submersible rated for

irrigation applications

Features

The PFT uses inductive sensing to sense the

blades of the impeller as they rotate. Sensor

technology does not use magnets allowing low

flow rate monitoring and no concerns with

magnetic material in the flow

Paddlewheel, shaft and bearings are easily

field replaceable

Features

Fits pipes from .038 to 1.016 m with just one

size adjustable sensor

Unit extends according to pipe size it is used in

Specifications

Service: Water-based fluids

Range: 0.37 to 7.62 m/s

Wetted Materials: Body and fitting: brass or

316SS; fitting o-ring: FKM standard, silicone or

Buna-N optional; impeller: 316 SS; shaft: 316 SS

standard or tungsten carbide optional; bearing:

PTFE; polysulfone.

Linearity: ± 1.0% of full range

Specifications

Repeatability: ±0.5% of full range

Temperature Limits: -40 to 100°C

Pressure Limits: 27.6 bar @ 37.8 °C, 22.4 bar @ 100°C

Process Connection: 1-½” NPT male standard, 2” NPT

male optional

Specifications

Output: NPN open collector with square wave

output. 60V @ 50 mA maximum

Frequency: 3.2 to 200 Hz

Pulse Width: 2.5 msec ±25%

Power Requirement: 10 to 35 VDC

Specifications

Electrical Connection: 22 AWG shielded UL type

PTLC rated 105°C, 6.1 m long with cable gland. Can be

extended up to 609 m with similar cable. Optional UL

listed burial rated cable.

Enclosure Rating: IP67 (Submersible)

Housing Materials: Brass or 316 SS

Weight: 1.81 kg

Agency Approvals: CE

Basic Models

Model Description List Price

PFT-IDN-B111-S Brass Body $360.00

PFT-IDN-S111-S 316 SS Body $535.00

Options

2” NPT connection

Burial rated cable

Extended cable

Other wetted materials

Soon to come:

4 to 20 mA linear output

Applications

Building Automation

Monitoring of chilled water supply and

return in the building or chiller plant

Can be used for thermal flow calculations

with controller or building system

Cooling Loop

Applications

Irrigation

Monitor flow rate in water lines

Leak detection

Even small leaks can create erosion,

property damage, and waste expensive water

A 4” line can dispense 100,000 gallons per

hour

Signal to controller to close valve in the line

Applications

Irrigation

Golf courses, football

fields, farming,

business parks

Applications

Fertigation

Monitor flow rate for

addition of fertilizer

with irrigation water

Applications

General industry flow rates

Pump proving

Leak detection

Flow rate monitoring

Questions

To order a free catalog or for more information contact;

Dwyer Instruments, Inc., P.O. Box 373,

Michigan City, IN., 46361

Telephone: (800) 872-9141 or (219) 879-8000

Fax: (219) 872-9057

Internet address: www.dwyer-inst.com

E-mail: info@dwyer-inst.com