Clamp On Ultrasonic Flow Meter

High-Precision Industrial Measurement
The Clamp-On Ultrasonic Flow Meter delivers accurate transit-time flow measurement for industrial liquids. Using a 700,000-gate industrial FPGA chip and proprietary TGA technology, it improves signal sampling and bubble tolerance, ensuring fast and precise measurements even with transient bubbles or impurities.

Non-Invasive Installation & Easy Operation
The clamp-on design allows external installation on pipes without cutting or stopping the system, preventing pressure loss and avoiding fluid contamination. Quick and simple setup saves labor and downtime, making it ideal for continuous operation in industrial environments.

Versatile Applications & Customization
Suitable for water, chemical, HVAC, food & beverage, pharmaceutical, and energy monitoring applications, it supports metal and plastic pipes (PVC, PP, PVDF) and a wide range of pipe sizes. OEM/ODM options include sensor size, flow range, output signals (4–20 mA, pulse, Modbus), and optional energy measurement (BTU/heat/cooling).

Durable Industrial Design & Data Management
Built with aluminum and industrial-grade plastics and rated IP65, the flow meter withstands vibration, impact, and harsh environments. EEPROM memory stores data for over 10 years, and the high-resolution LCD display provides real-time flow, total volume, and energy readings for reliable monitoring and process control.

Flow Meter Description  

Clamp On Ultrasonic Flow Meter-Features

  • User-friendly clamp-on design enables quick installation and operation, taking only a few minutes from setup to measurement.

  • Non-invasive external clamp design measures flow without contacting the medium, preventing pressure loss or contamination compared with traditional flow meters.

  • No need to cut pipes or stop system operation, saving time, labor, and operational costs—ideal for continuous industrial processes.

  • Flexible configuration with multiple modes; one sensor fits all pipe sizes within the measuring range, compatible with metal and plastic pipes.

  • High-resolution 256×128 LCD display shows flow rate, total volume, and other key parameters.

  • Optional upgrade to an ultrasonic energy meter, BTU meter, or heat/cooling meter for comprehensive energy monitoring and management.

Displays an ultrasonic flow meter with LCD screen showing real-time flow rate and total flow values.
Shows the application range of an ultrasonic flow meter, including suitable fluids, compatible pipe materials, and pipe size ranges for industrial measurement.

Ultrasonic Flowmeter Clamp On-Applications

  • Water treatment and distribution monitoring for industrial and municipal systems.

  • Chemical, petrochemical, and pharmaceutical process flow measurement.

  • HVAC systems for energy efficiency and heat/cooling monitoring.

  • Food and beverage production lines requiring non-invasive flow measurement.

  • Wastewater monitoring and environmental management.

  • Industrial energy monitoring when configured as ultrasonic energy or BTU meter.

Ultrasonic Flow Meter Clamp On-Measuring Principle

The clamp-on ultrasonic flow meter uses the transit-time ultrasonic principle: ultrasonic pulses are sent across the pipe in both directions. The time difference between upstream and downstream pulses is measured, allowing precise calculation of the flow rate. Non-invasive clamp-on installation ensures zero pressure drop and no contamination of the measured fluid. Proprietary TGA technology improves signal processing, tolerates transient bubbles, and ensures highly accurate, stable measurements even in challenging flow conditions.

Displays the internal structure and electronic component layout of an ultrasonic flow meter.
Shows the side view of an ultrasonic flow meter with clamp-on mounting bracket details.

Clamp-On Ultrasonic Flow Meter-Structure

  • Clamp-On Sensor: External installation on the pipe, non-invasive and suitable for retrofitting existing pipelines.

  • Integrated or Split Transmitter: Compact transmitter with display or remote unit for flexible installation.

  • Universal Sensor Design: One sensor can cover a wide range of pipe diameters and materials (metal or resin).

  • Optional Display and Output Modules: LCD/LED display, 4–20 mA, pulse, or Modbus outputs.

  • Rugged Housing: Suitable for industrial environments, optional explosion-proof or waterproof models.

Flow Meter Parameter  

ParameterSpecification
Pipe MaterialMetal / PVC / PP / PVDF rigid plastic pipes
Liquid TypeWater or other single-phase liquids without solid particles or impurities
Temperature Range0–75°C (no surface freezing)
Low Velocity Cut-Off0.1 m/s (default by factory)
Display256×128 LCD
Response Time0.5–60 s
Accuracy±2% (±1% after calibration)
Data Storage Period300 ms
Memory for Data BackupEEPROM (over 10 years, read/write frequency > 1 million times)
Power & I/O ConnectionM12 aviation plug
Output4–20 mA
CommunicationModbus RS485
Optional OutputOCT (pulse output) / One relay alarm (contact factory)
Power Supply10–24 VDC
Electric Power< 3 W
Protective CircuitOutput short-circuit and surge protection
Enclosure Protection ClassIP65
Environmental Temperature-10 to 60°C (no freezing)
Relative Humidity35–85% RH (no condensation)
Vibration ResistanceDouble amplitude 1.5 mm, 2 hours per XYZ axis
Impact Resistance100 m/s², 16 ms pulse, 1000 times per XYZ axis
Main MaterialAluminum, industrial plastics
Cable Length2 m standard (PT1000 sensor cable 9 m standard)

Flow Range

Pipe Size (DN)Upper Flow Value (L/min)
1560
20100
25200
32300
40400

Instrava OEM/ODM

Instrava is your trusted supplier of Chinese products.

We can arrange customized product manufacturing to meet your growth needs, identifying high-quality factories for both OEM and ODM projects.

We can facilitate the customization of specialized products based on your project requirements (such as power-related equipment, where we can engage Chinese design institutes for product development—subject to a separate fee).

We can tailor comprehensive project upgrade solutions to your facility’s needs (such as migrating traditional instrumentation to the cloud or upgrading to technologies like Ethernet-APL).

We can source precision measurement instruments to meet your laboratory’s requirements.

And much more…

Whatever your product needs may be, we will do our utmost to fulfill them.

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Related Product Recommendations  

A clamp-on ultrasonic flow meter is a non-invasive flow measurement device that uses transit-time ultrasonic technology. It clamps externally on pipes, measuring flow without contacting the liquid. This prevents pressure loss, avoids contamination, and allows installation without stopping industrial pipelines. Ideal for water, chemical, HVAC, food & beverage, and pharmaceutical applications.

Our industrial clamp-on ultrasonic flow meters deliver ±2% accuracy by default and ±1% after calibration. With proprietary TGA signal processing, the meters handle transient bubbles and impurities in the liquid, ensuring reliable flow measurement even under complex industrial conditions. Measurement range: 0.1 m/s to 10 m/s; pipe sizes DN15–DN3000 mm.

Yes, we provide full OEM/ODM customization, including:
– Sensor size and pipe compatibility (Metal, PVC, PP, PVDF)
– Flow range and calibration
– Output signals (4–20 mA, pulse, Modbus RS485)
– Display type (LCD/LED)
– Housing protection (IP65, explosion-proof)
– Branding and packaging customization. This ensures meters meet specific industrial or energy-monitoring requirements.

Installation is extremely quick and non-invasive. The clamp-on sensor attaches externally to the pipe in minutes, requiring no pipe cutting or system shutdown. This reduces labor costs, minimizes downtime, and supports continuous operations in industrial plants. Optional split/transmitter designs allow flexible installation in tight spaces.

Yes, the meter can be upgraded to an ultrasonic energy meter, BTU meter, or heat/cooling meter. It measures flow and calculates energy consumption, suitable for HVAC systems, district heating, and industrial energy monitoring. Supports output via 4–20 mA, pulse, or Modbus RS485, integrating seamlessly with SCADA or PLC systems.

– Non-invasive measurement prevents contamination and pressure loss
– Quick, easy installation with no downtime
– High precision (±1% after calibration)
– Wide compatibility: pipe sizes DN15–DN3000 mm, metal/plastic pipes
– Robust industrial design: IP65, vibration/impact resistant
– OEM/ODM customizable for industrial or energy applications.
This combination makes it ideal for industrial and municipal water, chemical, HVAC, and energy management applications.

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