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SERIES PFT
1-1/2˝ NPT
[200.94]
[50.80]
19.50
MAX
PADDLEWHEEL FLOW SENSOR
Non-Magnetic Sensing, Adjustable for 1-1/2 to 40˝ (38.1 to 1016 mm) Pipe, Pulse or 4-20 mA
1/2˝ NPT
Ø2-1/2
[63.50]
3-13/16
[96.84]
2-25/64
[60.72]
7-29/32
MAX
FLOW
0
PFT-IAN-B111-S
The Series PFT Paddlewheel Flow Sensor is used to monitor liquid ow rates
in pipes from 1-1/2 to 40˝ (40-1016 mm). The unit has one size-adjustable sensor
and is available in brass or 316 stainless steel body. The unit outputs a frequency
proportional pulsed or 4-20 mA output. The pulse models are a square wave output
signal with frequency proportional to the ow velocity and the 4-20 mA models have a
linear output of the velocity with 4 mA equal to 0 ft/s and 20 mA equal to 25 ft/s.
BENEFITS/FEATURES
• Long product life even in applications with particulate due to bearings and shaft that
offer excellent wear protection
• Use in irrigation applications with weatherproof and submersible ratings
• Save time and inventory with one unit that is adjustable over a large pipe size
range
• Application versatility with a variety of wetted material selections
• Reduce need for additional external components with integral 4-20 mA output
• Eliminate concerns regarding magnetic material in ow due to sensor technology,
which uses inductive sensing and no magnets
APPLICATIONS
• Irrigation
• Ground water remediation
• Cooling systems
• Pump protection
• Leak detection
• Filtration systems
MODEL CHART
Example PFT -I D N -B 1 1 1 -S -ST PFT-IDN-B111-S-ST
Series PFT Paddlewheel ow sensor
Style I
Output D
Approvals N None
Body
Material
Mounting 1
O-Ring
Material
Wetted
Materials
Electrical
Connection
Options ST Stainless steel tag
H
A
PFT-HDN-S611-S
shown with
A-PFT-HKIT-SS
B
S
2
3
4
5
6
7
8
1
2
3
1
2
S
B
PFT-HDN-B611-S
shown with
A-PFT-HKIT
Insertion
Hot-tap insertion
600UA/40 MA 2.5 MS pulse
Analog 4-20 mA transmitter
Brass body
316 SST body
1-1/2˝ NPTM mounting
2˝ NPTM mounting
1-1/2˝ male BSPT mounting
2˝ male BSPT mounting
1-1/2˝ NPTM hot tap with valve
1-1/2˝ NPTM hot tap without valve
1-1/2˝ male BSPT hot tap with valve
1-1/2˝ male BSPT hot tap without valve
FKM uoroelastomer
Silicone (FDA approved)
Buna-N
Tungsten-carbide shaft, 316 SS impeller,
PTFE bearing
316 SS shaft, 316 SS impeller, PTFE
bearing
22 GA shielded wire, 20 ft (6.1 m)
18 GA UL listed burial rated, 4 ft (1.2 m)
2˝ HEX
SPECIFICATIONS
Service: Water-based uids.
Range: 1.2 to 25 ft/s (0.37 to 7.62 m/s).
Wetted Materials: Body and tting: Brass or 316 SS; tting O-ring: FKM standard,
silicone or Buna-N optional; impeller: 316 SS; shaft: Tungsten carbide standard or
316 SS optional; bearing: PTFE standard.
Linearity: ±1.0% of FS.
Repeatability: ±0.5% of FS.
Temperature Limits: -40 to 212°F (-40 to 100°C).
Pressure Limits: 400 psig (27.6 bar) @ 100°F (37.8°C), 325 psig (22.4 bar) @
212°F (100°C).
Process Connection: 1-1/2˝ NPT male or 1-1/2˝ BSPT male standard, 2˝ NPT
male or 2˝ BSPT male optional.
Output: Pulse: NPN open collector with square wave output, rated 60 V @ 50 mA
max; Frequency: 3.2 to 200 Hz. Pulse width: 2.5 msec ±25%; 4-20 mA: 4 mA is
0 ft/s, 20 mA is 25 ft/s.
Power Requirement: 10-35 VDC.
Power Consumption: 40 mA (max.).
Electrical Connection: 22 AWG shielded UL type PTLC rated 105°C, 20´
(6.1 m) long with cable gland. Can be extended up to 2000´ (609 m) with similar
cable. Optional UL listed burial rated cable.
Enclosure Rating: NEMA 6P (IP67)*.
Housing Materials: Brass or 316 SS.
Weight: 3 lb (1.36 kg).
Compliance: CE.
*Brass units IP67 only.
MODEL CHART
Model Description
PFT-IAN-B111-S
PFT-IAN-S111-S
PFT-IDN-B111-S
PFT-IDN-S111-S
PFT-HAN-B611-S
PFT-HAN-S611-S
PFT-HDN-B611-S
PFT-HDN-S611-S
ACCESSORIES
Model Description
A-PFT-HKIT
A-PFT-HKIT-SS
A-PFT-HKIT-SS-BSPT
USA: California Proposition 65
WARNING: This product can expose you to chemicals
including Lead, which is known to the State of California to
cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.
Standard brass 1-1/2˝ NPTM analog output
Standard 316 SST 1-1/2˝ NPTM analog output
Standard brass 1-1/2˝ NPTM pulse output
Standard 316 SST 1-1/2˝ NPTM pulse output
Hot tap without valve brass 1-1/2˝ NPTM analog output
Hot tap without valve 316 SST 1-1/2˝ NPTM analog output
Hot tap without valve brass 1-1/2˝ NPTM pulse output
Hot tap without valve 316 SST 1-1/2˝ NPTM pulse output
1-1/2˝ brass valve NPT with nipple
1-1/2˝ SS valve NPT with nipple
1-1/2˝ SS valve BSPT with nipple
5.000
Ø1.125
DWYER INSTRUMENTS, LLC | dwyer-inst.com
Flow Transmitters, Paddlewheel,
Adjustable Insertion
279
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