Clamp On Type Ultrasonic Flow Meter

Auto adjustable Clamp-on Ultrasonic Flow Meter

  • Ultrasonic flow meter works on the Transit Time or Time of Flight principle.
  • The Flow meter unit utilizes two transducers that function as both ultrasonic transmitters and receivers.
  • The transducers are clamped onto the outside surface of the closed pipes.
  • The transit time flow meter measures the time it takes for an ultrasonic signal transmitted from one transducer to cross the pipe and be received by second transducer.
  • The flow is then measured by comparing the upstream and downstream time of Ultrasonic signal.


  • Auto adjustable to various pipe materials.
  • Quick and easy to install and operate
  • Requires no special skills or equipment.
  • Budget-friendly and adaptable.
  • No need to cut the pipe or stop water, easy installation.
  • Highly accurate and reliable.
  • There are no moving parts, no pressure drops, and no maintenance requirements.

Applications (*)

  • Municipal water supply lines
  • Large pipelines
  • Utility Plants in all industries
  • Refineries – Cooling Towers
  • Pharma industry
  • Power plant

(* – For clear water applications only)


  • There is no need to shut down the system or drain the pipes.
  • Lower maintenance requirements compared to in-line meters
  • Because the sensors are mounted externally, there is no risk of contamination of the fluid being measured.
  • Clamp-on flow meters can be easily retrofitted onto existing piping systems.

Product Details

Brand manas microsystems
Applicable Line Sizes DN 50 To DN 1500
Model Name/Number CTs-Small, CTm-Medium, CTl-Large
Flow Media Type Water
Display Digital
Power Supply Universal Supply (85 V AC to 265 V AC at 50 Hz.)
Accuracy ±2%
Type Clamp-on type
Ingress Protection IP 68
Temperature -30 to 90 degrees c


It works by attaching ultrasonic transducers (sensors) to the exterior of the pipe. One transducer sends ultrasonic signals through the pipe wall, and the other receives the signals after they’ve traveled through the fluid. By measuring the time it takes for the signals to travel, the flow rate can be calculated.

Some benefits include non-intrusive installation, compatibility with various pipe materials and sizes, reduced maintenance, no pressure drop, suitability for different fluids, and the ability to measure bi-directional flow, among others.

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