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Portable Doppler Flow Meter “Micronics” Model PF D550
[PF D550]





Doppler Flow Meter




Use a PF D550 Portable Doppler Flow Meter to monitor and balance flow, or to troubleshoot


flow problems in full pipes. It is ideal to evaluate performance of in-line flow meters and can


be installed, calibrated and started-up in minutes. Use it for projects where a permanent


flowmeter is not required or to temporarily replace installed flow transmitters.




The PF D550 ultrasonic sensor is clamped on the outside of a pipe. An acoustic pulse is reflected


back to the sensor from particles or gases in the flowing liquid. The flow rate of any fluid can be


measured as long as it contains air bubblers or solids. It is ideal for wastewater, slurries, sludge and


most chemicals, acids, caustics and lubrication fluids. With its internal battery the PF D550 can be


operated all day and then recharged overnight. For continuous use it can be powered by a


supplied 110-240VAC wall plug adapter. A 300,000 point data logger is built-in.




General Specifications

PORTAFLOW D550 Portable Doppler Flow Meter


Flow Rate Range:

+/-0.03 to 12.2 m/sec (+/- 0.1 to 40 ft/sec) in most applications


Pipe Size:

Ultrasonic sensor mounts on any pipe from 12.5 mm to 4.5 m (1/2” to 180” ID)



White, backlit matrix – displays flow rate, totalizer, operating mode and calibration menu

Power Input:

Built-in NiMH battery for up to 18 hours continuous operation

External charger with 100-240 VAC 50/60 Hz input



4-20 mA (500 ohm) when AC  powered

USB for Data Log transfer by direct PC connection


Data Logger:

Programmable 300,000 data point capacity, time and date stamped or formatted reports including total, average, minimum, maximum and  times of occurrence


PC Software

‘Logger’ for Windows retrieves, displays and saves data log files


Electronics Operating Temperature:

-23° to 60°C

(-10° to 140°F)


Electronics Enclosure:

Portable, ABS enclosure


Carry Case:

Rated IP67 with protective molded foam insert



2% of full scale, requires solids or bubbles minimum size of 100 microns, minimum concentration 75 ppm. Repeatability: +/-0.25%, Linearity: +/-0.5%



Built-in 5-key programming with user-friendly calibration menu, password protected


Language Selection:

English, French, Spanish



Adjustable cut-off, Damping: adjustable



Charger is CE and UL approved. The PF D550 is not certified for use in hazardous rated locations




Sensor Specifications



Standard Model PSE4:

Clamp-on, single-head ultrasonic for pipes from 12.5 mm to 4.5 m (1/2” to 180” ID)

with 3.4 m (12 ft) shielded dual-coaxial cable


Sensor Mounting Kit:

Stainless steel pipe clamp and 150 g (5.3 oz.) silicone coupling compound


Operating Temperature:

-40° to 120°C (-40° to 250°F)







Sensor Cable:

15 m (50 ft) sensor cable extension, shielded, with connectors


Sensor Mounting:

Extra silicone coupling compound. Additional stainless steel pipe clamps




Recommended for:


§  Sewage

§  Treated Wastewater


§  Aerated Water

§  Sludge and Slurries


§  Chemicals and Solvents

§  Viscous Liquids


§  Abrasives

§  Food Products


§  Pulp Stock

§  Acids and Caustics




The PF D550 is ideal to measure full pipe flow of any liquid containing gas bubbles or solids larger than 100 microns


and in concentrations greater than 75 ppm.



This product was added to our catalog on Thursday 06 February, 2020.
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Nanomachinery Co., Ltd.
4, Soi Petchkasem 100 ,Phetchkasem Rd. ,Bangkaenue ,Bangkae ,Bangkok, 10160, THAILAND.
Tel : 086-322-6876 ,02-421-9927 ,Fax : 02-809-2591 E-mail : pongthorn@nano-machinery.com
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