The Minisonic-2000 clamp on water flow meter

The MiniSonic-2000 is an accurate and economical clamp on water flow meter suitable for measuring liquids in full pipes. It incorporates all the intelligence, innovation and experience acquired by Ultraflux in 40 years of being the world’s specialists and technical experts in ultrasonic transit time flow measurements.

Features and benefits

Suitable for pressurised pipes containing liquids (including water) this bi-directional, clamp on water flow meter can be used for a wide range of applications.  It is perfect for operational monitoring in most process plants and pipe distribution networks.


The external clamp on probes (without any contact with the liquid) enable quick, easy and low cost installation. The integrity of the pipe is not jeopardised and flow is not disrupted by a shutdown. There are no moving parts so maintenance is not an issue.  With no intrusion into the pipe, there are no pressure drops or turbulence.


Ability to measure most pipe diameters. This clamp on water flow meter has probes to measure from 10mm OD to 3300mm OD. The clamp-on probes are suitable for all metallic, plastic and multi-layered pipes.  Not all asbestos pipes are suitable for clamp-on probes and insertion probes may be used in more difficult applications (concrete and corroding pipes).


Unrivaled accuracy and versatility with performance accuracy up to 0.5%, measurement resolution less than 0.1 nano second and suitable flow range from 1 mm to 45 metres per second.


Dual Chord Input enables this clamp on water flow meter to receive signals simultaneously from two sets of probes either on the same pipe or different pipes. This may be necessary when there is a pipe with a low flow bi-pass and data from both pipes is required.  It may also be useful when there is a challenging application requiring 4 sensors on the same pipe to obtain an accurate result. The ability to monitor two separate pipelines simultaneously with one clamp on water flow meter is extremely convenient with cost and setup time efficiencies.


Ability to be powered with low voltage DC this permanent ultrasonic flow meter can be used in remote locations with solar powered batteries. Requires 9 – 36 Volts DC.  (Other options available.


Signal quality index displayed as a percentage assists the operator to identify any distortions caused by electrical noise or air bubbles.


Connectivity  with two 4-20mA outputs and 2 alarm status

relays this clamp on water flow meter is perfect for integration with building management and telemetry systems.


Durable Aluminium enclosure with high ingress protection rating of IP67 ensures this clamp on water flow meter is suitable for use in harsh environmental conditions. The backlit display, keypad and wall mount bracket facilitate quick and easy installation and setup.


  • Liquid flows in water, raw water, waste water, ultra-pure water, non-conductive water, oil, chemicals and refined and raw petroleum products.
  • Difficult applications including entrained solids, encrusted pipe work and foodstuffs.
  • Suitable for different pipes (steel, stainless steel, asbestos cement, cast iron and carbon fibre).
  • Water network or process management.
  • Waste water flow measurements at pumping stations and treatment plants.
  • Flow measurement for raw water intake and effluent water discharge.
  • Fire main monitoring.
  • Flow measurement for acids and chlorides.
  • Flow measurement for ultra-pure water.