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In real industrial environments, flow measurement often faces practical constraints:
Pipelines cannot be shut down or cut
Temporary measurements for commissioning, troubleshooting, or energy audits
Wide pipe diameter ranges across different locations
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.
Non-intrusive measurement – clamp-on installation without cutting, welding, or process interruption
Rapid deployment – sensors can be mounted and commissioned within minutes
One instrument, multiple pipelines – ideal for inspection, verification, troubleshooting, and comparative testing
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:
Ultrasonic signals are transmitted with and against the flow direction
Flow velocity causes a difference in upstream and downstream travel time
The time difference is converted into average flow velocity
Volume flow rate is calculated based on pipe diameter parameters
✔ No contact with the medium
✔ Independent of pressure
✔ No moving or wearing parts
Portable Ultrasonic Flow Meter Mechanical Design & Reliability
Portability does not mean reduced robustness. The structural design focuses on on-site reliability:
Main unit: High-contrast backlit LCD for outdoor and low-light environments
Sensors: Clamp-on or insertion types for different pipe sizes and materials
Cabling & interfaces: Industrial-grade, resistant to bending and electromagnetic interference
Internal structure: No mechanical wear components, ensuring long-term stability
Ideal for repeated inspections, multi-point testing, and cross-project use.


Portable Ultrasonic Flowmeter Typical Applications
Industrial cooling water and circulation systems
HVAC system commissioning and energy evaluation
Temporary flow verification and comparative testing
Flow assessment prior to pipeline retrofitting
Energy audits and efficiency improvement projects
Flow Meter Parameter
| Артикул | Технические характеристики |
|---|---|
| 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 |
| Электропитание | 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 |
Flow Meter OEM/ODM
Instrava delivers more than instruments — we focus on application success:
Sensor selection based on pipe diameter and material
Measurement guidance for low-flow or aging pipelines
OEM and project-based customization support
Long-term technical service and collaboration
Компания Instrava - партнер, специализирующийся на поставке оборудования, решений и услуг для промышленных измерительных и контрольных приборов, используемых в критически важных системах безопасности и управления технологическими процессами.
We help customers improve efficiency through trust, communication, and collaboration.

Рекомендации по сопутствующим товарам
Yes, under stable flow conditions and with sufficient straight pipe length, low flow measurement is achievable.
Small, evenly distributed bubbles have limited impact, while excessive aeration or two-phase flow may reduce signal stability.
Yes. Clamp-on ultrasonic technology is particularly advantageous for large pipelines due to low installation cost and minimal disruption.
No. The same instrument can be used with different pipe materials by adjusting sensor parameters.
The device supports continuous operation, although it is primarily designed for portable and temporary measurement tasks.
Yes. When combined with temperature sensors, it can calculate thermal energy for heating and cooling applications.
Выбирая компанию Instrava, вы получаете партнера с глубоким пониманием промышленных применений и опытом, позволяющим решать современные производственные задачи.
Наша роль выходит за рамки продукции - мы поддерживаем ваш успех с помощью надежных решений и долгосрочных обязательств.
Инновации компании Instrava основаны на реальных промышленных требованиях. Мы постоянно совершенствуем наши технологии для решения возникающих производственных задач, обеспечивая практичную и надежную работу в сложных условиях.
Мы обеспечиваем настройку на инженерном уровне для соответствия конкретным условиям процесса. От диапазона измерений и материалов до выходных сигналов и вариантов установки - наши решения настраиваются в соответствии с реальными условиями применения.
Качество и надежность являются основой каждого продукта Instrava. Изготовленные под строгим контролем качества и тщательно протестированные, наши приборы обеспечивают точную, стабильную и долговременную работу.
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Мы тесно сотрудничаем с нашими партнерами, начиная с технических консультаций и заканчивая послепродажным обслуживанием. Наше внимание сосредоточено на предоставлении решений, которые создают долгосрочную ценность и поддерживают долгосрочный операционный успех.