How to Select Industrial Clamp-on Ultrasonic Flowmeter

Clamp-on ultrasonic flowmeters are non-invasive devices used to measure the flow rate of liquids in pipes without the need for cutting into the pipe or stopping the flow. They work on the principle of ultrasonic transit-time flow measurement, which involves sending ultrasonic signals through the fluid and measuring the time it takes for the signals to travel between two transducers. By comparing the upstream and downstream transit times, the flowmeter can calculate the velocity of the fluid and, subsequently, the flow rate.

These flowmeters consist of two main components: the transducers and the flowmeter electronics. The transducers are clamped onto the outside of the pipe and emit ultrasonic signals that penetrate through the pipe wall and into the flowing liquid. They also receive the signals after they have passed through the fluid. The flowmeter electronics process the received signals to determine the flow rate.

Advantages of Clamp-On Ultrasonic Flow Measurement Technology:

  • Non-Invasive: Does not require cutting into the pipe or interrupting flow, making it ideal for applications where pipe modification is not feasible.
  • Easy Installation: Simple installation process that does not require specialized skills or tools, leading to lower installation costs and minimal downtime. This makes it an ideal solution for fast-paced industrial environments. 
  • Wide Pipe Size Range: Can be used on a wide range of pipe sizes without the need for additional hardware or modifications.
  • No Pressure Drop: Does not obstruct the flow path, ensuring accurate measurements without affecting the flow.  
  • Versatility: Can be used for a variety of fluid types, including clean liquids, liquids with small amounts of suspended solids or bubbles, and some gases.
  • Low Maintenance: No moving parts in contact with the fluid, reducing the need for maintenance and ensuring long-term reliability.
  • High Accuracy: Provides high accuracy measurements, suitable for applications where precise flow measurement is critical.
  • Remote Monitoring: Some models offer remote monitoring capabilities, allowing operators to monitor flow rates from a distance.
  • Cost-Effective: Compared to traditional inline flowmeters, clamp-on ultrasonic flowmeters can be more cost-effective, especially when considering installation and maintenance costs.
  • Minimal Flow Disturbance: Has minimal impact on the flow profile, ensuring that measurements are not significantly affected by flow disturbances or variations in flow conditions. Also, this feature reduces system downtime and the risk of contamination.


Guide for Selecting a Clamp-On Ultrasonic Flow Meter, Using the UltraFlo 500 as an Example:

  • Determine Pipe Size and Material: The UltraFlo 500 is compatible with a wide range of pipe sizes and materials, such as plastic and metal pipes, making it suitable for a wide range of industries and applications. 
  • Consider Fluid Type and Properties: The UltraFlo 500 can be used for a variety of fluids, including liquids with low to moderate amounts of suspended solids or gas bubbles.
  • Define Flow Rate Range: The UltraFlo 500 has a wide measurement range, making it suitable for applications with varying flow rates.
  • Specify Accuracy Requirements: The UltraFlo 500 provides ±2% accuracy measurements, meeting the requirements of applications where precise flow measurement is critical. 
  • Evaluate Installation Environment: The UltraFlo 500 is easy to install and can operate reliably in a variety of environments, including those with extreme temperatures or pressures. It features a rugged industrial design and NEMA 4X rating, indicating protection against dust, water and corrosion. In addition, its baked-on Teflon coating offers excellent corrosion resistance further extending the lifespan of the flowmeter.
  • Review Display and Output Options: The UltraFlo 500 offers various display and output options, including a user-friendly interface and multiple communication interfaces for data transfer. For example, it comes equipped with 4-20mA, RS485, and I-O Link outputs, facilitating easy integration with existing control systems and enabling real-time data monitoring and analysis. 
  • Check Power Supply Compatibility: The UltraFlo 500 can be powered using a variety of power sources, making it suitable for applications with different power supply options.

By considering these factors and using the UltraFlo 500 as an example, you can select a clamp-on ultrasonic flow meter that meets your specific application requirements. If you have any questions, please feel free to speak to our product specialist. 

  • How to Select Industrial Clamp-on Ultrasonic Flowmeter

Related Articles

Syringe Pump Flow Rate Calculation

Syringe Pump Flow Rate Calculation

This digital syringe pump (dLSP500) is designed for precision fluid handling laboratory applications. It accepts syringe size from 0.5uL to 60mL. Let's consider the dLSP500 syringe pump to estimate the flow rate range.  This pump has a linear translation speed range of 0.0833mm/min to 180mm/min, with a resolution of 0.03255µm/µstep. Table 1, 2, and 3 list commonly used syringe sizes and their inner diameters. The inner diameter of a 5 mL BD plastic syringe is approximately 11.98 mm. Using this information, we can calculate that the flow rate of the syringe pump ranges from 9.389 µL/min to 20.289 mL/min. The flow rates for other syringe sizes can be calculated in a similar manner.  In addition, the average pressures for any syringe pump and syringe together can be estimated by dividing the average force applied on the syringe pump and the syringe surface area.   

Industrial Syringe Pump Communication Command Examples (Hexagon Codes)

Industrial Syringe Pump Communication Command Examples (Hexagon Codes)

The ASP-SY0825 is a compact OEM industrial syringe pump module designed for precision liquid handling applications. This new syringe pump can communicate through RS-232, RS-485, or CAN interfaces, allowing for multi-pump arrangements of up to 15 pumps in one group. It supports group control and individual addressing, making it versatile for various automation needs. This pump is ideal for tasks such as auto pipetting, sample dilution or mixing, and sample dispensing in analytical instruments. It is available in three volume options: 5 mL, 12.5 mL, and 25 mL. If you have any questions or require more details, please don't hesitate to reach out to our product specialist.

Practical Fluidic Interface Guide for Electric Rotary Valves in Laboratory Automation

Practical Fluidic Interface Guide for Electric Rotary Valves in Laboratory Automation

The electric rotary or multi-channel switching valve is a stepper motor-driven fluid handling valve designed for automated fluidics applications. This precise rotary valve automates the routing of fluidic volumes, allowing for the handling of aggressive fluids and switching flow directions as needed. For instance, in a multi-channel distribution valve, a common central port connects the stator and rotator, enabling the switching of flow direction between different ports with a rapid response time of less than 120ms for adjacent ports. This switching valve can communicate through RS-232, RS-485, or CAN interfaces, allowing for multi-valve arrangements of up to 15 valves in one group. See Figure 1 for the wiring instruction. It supports group control and individual addressing, making it versatile for various automation needs. The wetted materials in the flow path are PCTFE/Sapphire and can be customized upon request.

Related Products

ICON Ultrasonic Flowmeter, UltraFlo 2000

ICON Ultrasonic Flowmeter, UltraFlo 2000

The Ultraflo 2000 series flow meter is designed to measure the volume of clean liquid media using ul..

$3,311.10

ICON Ultrasonic Flowmeter, UltraFlo 4000

ICON Ultrasonic Flowmeter, UltraFlo 4000

The UltraFlo 4000 utilizes ultrasonic technology as is capable of measuring both conductive and non ..

$2,078.10

ICON UF500 Clamp-On Ultrasonic Flow Meter

ICON UF500 Clamp-On Ultrasonic Flow Meter

The Truflo® UF500 Ultrasonic Flow Meter Sensor is highly adaptable, with a wide dynamic flow range o..

$1,259.10

Tags Sample Preparation, HPLC, Syringe Pump, Analytical Instrument, Flowmeter, Ultrasonic