Best Clamp on Ultrasonic Flowmeter Solutions for Versatile Liquid Measurement
Clamp-on ultrasonic flowmeters offer non-contact, accurate, and portable flow measurement for a wide range of liquids. This article highlights five reliable options, detailing key features, sensor configurations, and data logging capabilities to help you pick the right device for your piping size and application.
Summary Table of Selected Products
| Product | Transducer Type | Pipe Range | Data Logging | notable Feature |
|---|---|---|---|---|
| Bonvoisin Handheld Ultrasonic Flow Meter | S1+M2 | DN15-700mm | Up to 2000 data points | Real-time and software download option |
| CGOLDENWALL Handheld Ultrasonic Flowmeter | S1+M2 | DN15-700mm | Up to 2000 lines | Digital display, RS232 data export |
| ZWJABYY Handheld Ultrasonic Flow Meter | TM-1 / TS-2 / TL-1 variants (M2 supported) | DN15-DN6000mm | 2000 lines | Strong battery life, non-contact measurement |
| TTeralmon Handheld Ultrasonic Flow Meter | M2 Transducer | Various ranges, DN15-6000mm commonly | Data logger with ~10000 lines | Non-contact measurement with wide range |
| SULMILE TDS-100H-M2 | M2 Transducer | DN50-700mm | Large LCD, logging capabilities | Wide measuring range with high accuracy |
Bonvoisin Handheld Ultrasonic Flow Meter
The Bonvoisin flow meter uses S1 and M2 transducers designed for quick hook-up on various pipe sizes. It enables non-destructive measurement with a straightforward control unit workflow. Users can switch units between liters and gallons to fit reporting needs. The device supports data logging and offline analysis, with compatibility for real-time viewing on the unit or historical data via supplied software after data download. Accuracy is listed at ±1% with a velocity range of 0.1–6 m/s and a temperature range of 0–110°C (32–230°F).
Key features include: easy S1+M2 transducer setup, non-invasive measurement, internal data logger storing up to 2000 groups, and the option to obtain additional L2 sensors for larger pipes. This makes it suitable for seawater, industrial, and wastewater applications where minimal downtime is critical.
Design considerations: the need for software access to download data, compatibility with existing data workflows, and the decision between portable handheld use versus permanent clamps on large-diameter lines. The device emphasizes quick deployment without shutting down production.
CGOLDENWALL Handheld Ultrasonic Flowmeter
The CGOLDENWALL model uses S1+M2 transducers with combined digital display showing cumulative flow, instantaneous flow, velocity, and status. It supports non-destructive measurement with no need to interrupt the pipeline. The device advertises accuracy around ±1% with 0.5% linearity and 0.2% repeatability, plus a data logger storing up to 2000 lines. The unit can export logged data via RS232, assisting in archival and compliance tasks.
Considerations include label updates that may affect product packaging, the need to align S1 for DN15-100mm and M2 for DN50-700mm sizing, and ensuring you have the right connector standards for PC data transfer. It’s suited for copper or PVC piping in industrial settings.
ZWJABYY Handheld Ultrasonic Flow Meter
This handheld model delivers non-contact measurement by attaching sensors to the pipe’s exterior. It features a built-in data logger with a capacity for about 10000 data lines, and the LCD shows cumulative flow, instantaneous flow, and status. A large rechargeable battery supports more than 12 hours of operation, making it suitable for fieldwork and temporary installations.
When selecting this device, consider the system’s battery life expectations, the need for password protection of logged data, and how frequently you will download or transfer data to a PC. It supports multiple transducer configurations (TM-1 / TS-2 / TL-1) to cover a broad DN range.
TTeralmon Handheld Ultrasonic Flow Meter
TTeralmon’s handheld flow meter emphasizes non-contact measurements and a broad measuring range with the M2 transducer. It features a 24k-byte data logger capable of storing about 10,000 measurement lines and includes a complete kit with a flowmeter, transducer, cables, charger, and case. The device supports password protection for data integrity and a portable design that is suitable for field verification, process monitoring, and maintenance tasks.
Important factors include data security, the availability of an English instruction manual, and whether the kit covers your preferred pipe materials and diameters. The device is well-suited for industries requiring rapid deployment and robust logging capabilities.
SULMILE TDS-100H-M2 Ultrasonic Flow Meter
The SULMILE TDS-100H-M2 focuses on an M2 transducer setup for DN50-700mm pipes, delivering a large LCD display and a broad feature set. The description emphasizes high accuracy, wide range, and a straightforward user experience suitable for water distribution, chemical processing, and similar applications. It highlights the ability to measure instantaneous and accumulated flow with typical clamp-on convenience.
Key considerations include transducer compatibility with target pipe material and diameter, data logging capacity, and whether the device supports bidirectional measurement for comprehensive flow accounting. The model is positioned for a balance of accuracy, range, and field portability in varied liquid applications.
Buying Guide: Clamp-On Ultrasonic Flowmeters
- Pipe size and transducer range: Ensure the device supports your DN/DN range (for example, DN15-700mm or wider for large industrial pipes). M2 transducers typically cover larger diameters, while S1 covers smaller ranges.
- Liquid compatibility: Check which liquids are supported (water, seawater, sewage, alcohol, oils). Some meters specify compatibility with a variety of liquids, while others are optimized for a narrower set.
- Measurement accuracy and repeatability: Look for accuracy around ±1% with repeatability near 0.2% to ensure reliable results across conditions.
- Non-destructive installation: Clamp-on meters should not require cutting the pipe. Confirm that both S1 and M2 transducers can be mounted on existing piping without shutdowns.
- Data logging and export: If long-term monitoring is needed, verify the internal data logger capacity (e.g., 2000 lines) and export options (RS232, software download). Ensure software compatibility with your systems.
- Power and portability: Consider battery life and whether the unit is handheld or fixed. Long field measurements benefit from strong battery life and lightweight design.
- Display and user interface: A clear LCD showing instantaneous and cumulative flow is useful for quick checks, while digital interfaces facilitate data analysis.
- Environmental conditions: IP rating and temperature tolerance matter for outdoor or harsh environments (some models list IP67/IP68 protection).
- Maintenance and support: Check for available spare parts, sensor options, and supplier support for larger diameters or alternative transducers.