Portasonic® PLUS

Handheld Ultrasonic Flow Meter With Datalogging Functionality

Portasonic® PLUS is a portable ultrasonic transit-time flow meter designed to measure, internally record, and export the flow rate within a pipe with precision and ease. Portasonic® PLUS uses a customisable pre-programmed database to allow it to work with a wide variety of pipe materials and liquid types as a highly versatile monitoring solution that can be adapted for specific applications.

P/N: 2618949-PSOPLUS


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Precision Flow Rate Measurement

Portasonic® PLUS provides measurements to within ±0.5% of the true flow rate. This precision is enhanced by several features:

  • Customisable, pre-programmed database – With 19+ fluid types and 23+ pipe materials.
  • Integrated ultrasonic thickness gauge – To monitor pipe wall thickness and ensure it meets operational safety requirements.
  • Built-in signal oscilloscope – To provide sensor diagnostics and verify measurement process.
  • 3 measurement methods – To allow for the most appropriate application on different pipe size. See brochure for details.
  • Two sensor options – To fit different pipe diameters, with waterproofed variants also available.


System Integration with Datalogging and Export

Portasonic® PLUS includes a 4MB internal storage which allows measurements to be recorded and saved to the device. This can either be exported later via micro USB, or can be directly logged via Micro USB onto a PC in real-time.

Datalogging provides a verifiable record of system functionality and safety, and by recording the flow rate with a frequency of 1Hz as standard, allows for consistent recording and analysis of the flow rate.

The clamp-on Portasonic® PLUS sensors mean it can be non-invasively applied to almost any pipe as a continuous monitoring solution, but be easily transferred to a different location if monitoring requirements change. This gives Portasonic® PLUS dual functionality as both a permanent and portable monitoring solution, dependent on your needs.

Talk to our sales team to find out how Portasonic® PLUS can make your operation safer and more efficient.



3 Flow Rate Metrics 

Portasonic® PLUS can portray flow rate in one of three ways to optimise data utility:

  • Volumetric Flow Rate: In litres per minute or gallons per minute, the volume of liquid transferred within a pipe. The standard measurement for most industrial applications.
  • Mass Flow Rate: In kilograms per minute or lbs per minute, the mass of liquid transferred within a pipe, calculated by the device using density and flow rate. Commonly used in loading or unloading processes, eg. fuel transfers.
  • Heat/Energy Flow Rate: In kilowatts per hour or British Thermal Units (BTU) per second, the amount of thermal energy transferred by a pipe’s contents. Commonly used for measurement in heating or coolant pipes.


What's In The Box

  Portasonic® PLUS: Main Unit
  One Pair of DM10 Standard Sensors: For pipes DN15 – DN700
  One Pair of Beaded Chain Clamps : To mount the sensors
  10mm Ultrasonic Thickness Gauge Probe: Measures pipe wall thickness
  Ultrasonic Couplant: To ensure perfect contact
  Measuring Tape: For sensor positioning
  User Manual: Guidance on how-to-use
  Installation Manual: Guidance on how best to fit sensors to pipes
  Calibration Certificate: Verifies unit functionality and calibration on dispatch
  Robust Carrying Case: To store the equipment

Technical specifications

Technical Specification

220 x 85 x 22 mm (L x W x D)

Unit Weight

434g (with batteries)

Pipe Diameter Range
  • Standard Sensor (Model No. DM10): DN15 – DN 700 (1/2” – 28”)
  • Large Sensor (Model No. DS10): DN25 – DN2500 (1” – 98”)

±0.5% of True Flow Rate


0.25 mm/s 


0.15% of measured value 

Flow Velocity Range

0.01m/s – 25 m/s 

Turn down ratio


Measurement Rate

1 Hz as standard 

Measurement Units

Flow Velocity, Volumetric Flow Rate, Mass Flow Rate, Energy Flow Rate (Heat Quantity), Volume, Mass, Energy 


128 x 68 Backlit LCD

Additional Features
  • 4MB internal storage for datalogging with export capabilities via Micro USB
  • Integrated thickness gauging functionality, measures 2mm – 20mm range
  • Signal oscilloscope for sensor positioning and diagnostics
Power Supply

1x 9V PP3 battery, up to 12 hours continuous use

24/7 power option via Micro USB port

Operating Temperature

Main Unit: -10°C to +65°C  (14°F to 149°F)

Sensors: -20°C to +150° C  (-4°F to +302°F)

Sensor Dimensions

Standard Model No. DM10: 40mm (L) x 20mm (W) x 25mm (D) 

Large Model No. DS10: 60mm (L) x 30mm (W) x 35mm (D) 

Sensor Connectivity

1.5m BNC Coaxial Cable (longer lengths available on request)

IP Rating

Main Unit: IP 65 enclosure

Sensors: IP 66 (IP68 Variant Available)

Certifications and Approvals

UKCA, CE, Coltraco is ISO 9001:2015 and ISO 14001 registered

Option to include ISO 17025 calibration certification


Main unit – 3 Year Warranty

Sensor –  1 Year Warranty

Technical Support – Lifetime of the unit

See the Portasonic® PLUS in action.

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Frequently asked questions

Yes, Portasonic® PLUS has a 4MB internal storage which can record and store flow rate measurements. These can then be exported to a computer via Micro USB. The Micro USB connectivity can also be used to orient Portasonic® PLUS as a permanent monitoring solution, operating on mains power and continuously exporting real-time measurements to a computer monitoring the device.
The standard 9V PP3 battery provides Portasonic® PLUS with 12 hours of continuous use. Alternatively, the Micro USB connectivity can be used as a 24/7 power supply with any standard Micro USB charger. This means Portasonic® PLUS can also function as more permanent monitoring solution, operating on mains power and constantly exporting measurements to a computer monitoring the device.
The Portasonic® PLUS works on a variety of different fluid types, as long as the speed of sound in the fluid is known. There is a built-in database of over 19+ fluids ranging from: water, sea water, kerosene, petrol, fuel oil, crude oil, Freon R134a, Freon R22, diesel oil, castor oil, F-76 fuel oil, Novec™ 1230, glycol/water, etc. There is an option to input custom fluid types as long as you know the speed of sound in the fluid – this can be found from online databases The Portasonic® PLUS will also work on a variety of pipe material, as long as the speed of sound in the pipe material is known. There is a built-in database of over 12+ pipe material ranging from: carbon steel, stainless steel 304, stainless steel 316, cast iron, ductile iron, copper, PVC, lead, nylon, PE, aluminium, asbestos, fibre glass, etc. There is an option to input custom pipe materials as long as you know the speed of sound in the pipe material – this can be found from online databases
The Portasonic® PLUS will work on pipes ranging from DN15 – DN2500 (1/2” – 98”). It is recommended that you notify us with the range of pipes you will be testing so we can allocate the appropriate sensor type for your application The Standard Sensors (Model No. DM10) will work from DN15 – DN700 (1/2” – 27”) The Large Sensors (Model No. DS10) will work from DN25 – DN2500 (1” – 28”)
The accuracy and reliability of the Portasonic® PLUS’s flow measurement is dependent on your flow profile and how full the pipe is with your fluid To achieve maximum accuracy and reliability, the pipe needs to be full with the fluid during measurement The Portasonic® PLUS will work in fluids with up to 10% of gas or solid content. If your fluid contains a larger amount of solid content, a Doppler ultrasonic flow meter may be more suited for the application
If the paint layer is thin and in good condition, the Portasonic® PLUS will work well on the painted surface If the surface of the pipe is corroded, or the paint layer is thick, it is generally recommended to remove the paint layer before measurement is taken
The Portasonic® PLUS clamps onto the pipe, is portable and non-invasive which allows a single instrument to be used across multiple different pipes / pipe sections There are no installation costs such as drilling into pipes, therefore no downtime to the pipe network is present As there is no contact with the fluid being measured, there is no risk of pressure loss throughout your pipe network As with above, the fluid cannot damage the flowmeter, which could contribute to a longer lifespan and lower maintenance cost compared to inline flowmeters which are in contact with the fluid and risk being damaged by the pressurised flowing fluid

Related Products

The Portagauge® 6 is a multiple echo ultrasonic thickness gauge for measuring thicknesses of various metals and hard plastics, which ignores any coating up to 20mm in thickness. It comes with built-in datalogger to store up to 200,000 thickness measurements and minimum thickness alarm functionality. 

P/N: 2099382-6

The Permaflow® is a fixed, clamp-on, ultrasonic transit time flow and heat meter that is non-invasive for measuring the flow rates of liquids containing less than 10% of gas/solid contents. It is mains powered, designed for 24/7 monitoring and is accurate to +/- 0.5% of measured value under ideal conditions.

P/N: 3578010-FLOW

Calculate internal pipe pressures using externalnon-invasive and portable flow sensors. To be used alongside the Portasonic 2.FLO® portable ultrasonic flow meter 

P/N: 2618949-CALC


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