Dwyer Instruments PFT-HDN-S611-S | Paddlewheel flow sensor | Insertion style | pulse output | SS body | 1-1/2" NPT connection FKM seals | Tungsten-carbide shaft | PTFE bearings

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Genuine Products

Client Production

Dedicated Support

Genuine Products

Part Number : PFT-HDN-S611-S

Brass or 316 SS bodies are offered for the Model PFT-HDN-S611-S Insertion Paddlewheel Flowmeters, which are used to measure liquid flow rates in pipes ranging in size from 1-1/2 to 40". The device produces a 4–20 mA output or a frequency proportional pulsed output. The 4 to 20 mA variants feature a linear velocity output, with 4 mA equal to 0 ft/s and 20 mA equivalent to 25 ft/s. The pulse models provide a square wave output signal with frequency proportionate to the flow velocity.

Availability: Sold out

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Specifications
Features
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Approvals	CE
Connection	Electrical: 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
Connection	Process: 1-1/2" NPT male standard, 2" NPT male optional
Enclosure Rating	NEMA 6P (IP67) *
Housing Material	Brass or 316 SS
Linearity	+/-1.0% of FS
Manufacturer	Dwyer Instruments
Material	Wetted: Body and fitting: Brass or 316 SS Fitting O-ring: FKM standard, silicone or Buna-N optional Impeller: 316 SS Shaft: tungsten carbide standard or 316 SS optional Bearing: PTFE standard
Maximum Operating Pressure	400 psig (27.6 bar) @ 100°F (37.8°C), 325 psig (22.4 bar) @ 212°F (100°C)
Maximum operating temperature	-40 to 212°F (-40 to 100°C)
Output	Pulse: NPN open collector with square wave output, rated 60 V @ 50 mA maximum. Frequency: 3.2 to 200 Hz. Pulse Width: 2.5 msec +/-25%. 4 to 20 mA: 4 mA is 0 ft/s, 20 mA is 25 ft/s
POWER CONSUMPTION	40 mA (max)
Power	10 to 35 VDC
Range	1.2 to 25 ft/s (0.37 to 7.62 m/s)
Repeatability	+/-0.5% of FS
Type	Paddlewheel flow sensor
Weight	3 lb. (1.36 kg)

Long product life because of the superior wear protection provided by the bearings and shaft, even in situations with particulates.
Use in submersible and weatherproof irrigation applications.
Using a single unit that can be adjusted over a wide variety of pipe sizes can save time and inventory.
Flexibility in application with an array of wetted material options.
With an integrated 4–20 mA output, there is less need for extra peripheral components.
Sensing technology eliminates issues about magnetic material in flow since it employs inductive sensing instead of magnets.