Portable Ultrasonic Flow Meter
Why Engineers Choose Portable Ultrasonic Flow Meters
In real industrial environments, flow measurement often faces practical constraints:
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Pipelines cannot be shut down or cut
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Temporary measurements for commissioning, troubleshooting, or energy audits
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Wide pipe diameter ranges across different locations
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Requirement for fast deployment and immediate results
Portable ultrasonic flow meters are specifically designed for non-permanent, on-site measurement tasks where flexibility and speed are critical.
Flow Meter Description
Solving Field Uncertainty, Not Just Measuring Flow
Unlike fixed mechanical or differential pressure flow meters, portable ultrasonic flow meters are designed for maximum field adaptability rather than permanent installation.
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Non-intrusive measurement – clamp-on installation without cutting, welding, or process interruption
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Rapid deployment – sensors can be mounted and commissioned within minutes
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One instrument, multiple pipelines – ideal for inspection, verification, troubleshooting, and comparative testing
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Immediate data availability – supports real-time diagnostics, performance evaluation, and decision-making
For engineers, a portable ultrasonic flow meter serves as a mobile diagnostic and verification tool, enabling confident on-site measurement under changing field conditions.
Portable Ultrasonic Flowmeter Working Principle
Portable ultrasonic flow meters use the Transit-Time (Time-of-Flight) method:
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Ultrasonic signals are transmitted with and against the flow direction
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Flow velocity causes a difference in upstream and downstream travel time
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The time difference is converted into average flow velocity
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Volume flow rate is calculated based on pipe diameter parameters
✔ No contact with the medium
✔ Independent of pressure
✔ No moving or wearing parts
Flow Meter Parameter
| Item | Specification |
|---|---|
| Flow velocity range | ±0.03 ft/s to ±40 ft/s (±0.01 m/s to ±12 m/s) |
| Measurement accuracy | ±1% of measured value |
| Pipe size | Clamp-on installation: 1″ to 48″ (25 mm to 1200 mm) |
| Measured medium | Single-phase liquid |
| Pipe material compatibility | Carbon steel, stainless steel, PVC, and other dense solid pipes |
| Analog output | 4–20 mA, max load 750 Ω |
| Communication protocol | RS485 / Modbus |
| Data storage | 16 GB SD card (optional) |
| Logging interval | 1 to 99,999 seconds (configurable) |
| Display & operation | 240 × 128 backlit LCD with digital keypad |
| Power supply | Rechargeable lithium battery, 3000 mAh |
| Battery operating time | Approx. 16 hours of continuous operation |
| Operating temperature – transmitter | −40 °C to +60 °C |
| Operating temperature – transducer | −40 °C to +80 °C (standard), up to +120 °C (optional) |
| Ambient humidity | Up to 99% RH, non-condensing |
| Protection rating | Transmitter: NEMA 13 / IP54Sensor: IP68 |
| Transducer cable length | Standard 5 m (16 ft); longer lengths available on request |
Instrava OEM/ODM
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
Finding the right product in a massive supply chain can be challenging. That is where we step in.
As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.
How We Customize to Fit Your Procurement Needs
For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.
For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.
For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.
Why Partner with Us for Custom Sourcing?
One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.
Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.
Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.
Related Product Recommendations
Can portable ultrasonic flow meters measure low flow rates accurately?
Yes, under stable flow conditions and with sufficient straight pipe length, low flow measurement is achievable.
How do air bubbles affect measurement accuracy?
Small, evenly distributed bubbles have limited impact, while excessive aeration or two-phase flow may reduce signal stability.
Are large-diameter pipelines suitable for portable ultrasonic meters?
Yes. Clamp-on ultrasonic technology is particularly advantageous for large pipelines due to low installation cost and minimal disruption.
Do different pipe materials require different devices?
No. The same instrument can be used with different pipe materials by adjusting sensor parameters.
Is the meter suitable for continuous long-term operation?
The device supports continuous operation, although it is primarily designed for portable and temporary measurement tasks.
Can it be used for energy measurement?
Yes. When combined with temperature sensors, it can calculate thermal energy for heating and cooling applications.
Why Trust Instrava?
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.
We help you avoid intermediaries posing as factories.
We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.
Our multilingual team ensures effective communication.
For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.
Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.
Please place your trust in us.
