FS910 In-line Ultrasonic Flow Meter
Summary:
The FS910 pipeline-type ultrasonic micro flow meter is specifically designed for measuring low-diameter liquid flows in industries such as semiconductors, pharmaceuticals, chemicals, cleaning, and food processing. It employs the ultrasonic time-of-flight measurement principle and features a through-beam sensor configuration within the pipe section, delivering strong signal strength and excellent stability. The entire instrument is manufactured via CNC machining using PP/PFA materials, offering outstanding resistance to acids and alkalis. It utilizes a plug-in connection for plug-and-play operation. With no moving parts whatsoever, it eliminates wear and jamming, ensuring virtually maintenance-free operation.
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The FS910 pipeline-type ultrasonic micro flow meter is specifically designed for measuring low-diameter liquid flows in industries such as semiconductors, pharmaceuticals, chemicals, cleaning, and food processing. It employs the ultrasonic time-of-flight measurement principle and features a through-beam sensor configuration within the pipe section, delivering strong signal strength and excellent stability. The entire instrument is manufactured via CNC machining using PP/PFA materials, offering outstanding resistance to acids and alkalis. It utilizes a plug-in connection for plug-and-play operation. With no moving parts whatsoever, it eliminates wear and jamming, ensuring virtually maintenance-free operation.
Detailed introduction
Product Features
- Built-in advanced measurement chip with time resolution as high as 20 ps for rapid response.
- The flow meter features a plug-in design for quick and easy installation, making it simple to install and ready for use right away.
- The turndown ratio is 1:50, with the minimum measurable flow rate down to ml/s, making it suitable for measuring very small flows.
- Features a built-in four-line IPS LCD display showing date, signal strength, instantaneous value, and cumulative total, with Chinese–English language switching for easy reading.
Applicable Medium
The product virtually meets the requirements for measuring various single, clean liquids:
Its primary applications are in the measurement and control of water—ranging from tap water to purified and ultrapure water. With the continued expansion of its use across various industries, it has also proven highly effective for a wide range of acids, bases, organic liquids, chemical solvents, alcohol, and beverage waters.
| Water | Chemical substances | Organic liquid | Oil products |
Installation Steps
01 Select an appropriate measurement location and shut off the pipeline.
Dual equal-diameter socket design; verify the matching socket specifications before cutting.
02 Simply insert the tubing into both ends of the measurement unit.
Before installation, ensure the correct fluid flow direction and verify the inlet and outlet orientations.
03 Connecting the Host and Sensors
Connect the flow sensor to the host unit, remove the output cable, mate the connectors, and tighten them securely. Then wire the other end of the cable, power up the system, and observe: if the SQ reading stabilizes above 50, it indicates that stable measurement has been achieved.
Technical Specifications
| Product Name | FS910 In-line Ultrasonic Flow Meter |
| Measurement accuracy | 0.1m/s-5.0m/s |
| Flow rate range | ±1.0% (0.3 m/s–5.0 m/s) |
| Linearity | ±1.0% (0.3 m/s–5.0 m/s) |
| Repeatability | 0.4% |
| Response time | 50ms |
| Screen display | 2.4-inch 320×240 IPS LCD with four-way rotation (for easy reading) |
| Menu Language | Simplified Chinese, Traditional Chinese, English |
| Display Unit | Supports selection of metric and imperial units: m³/h, LPM, ml/min, GPM, LPH; the factory default unit is ml/min. |
| Display Data | Instantaneous flow rate, instantaneous flow velocity, net cumulative volume, single-event cumulative volume, daily maximum, daily minimum, and hourly/daily/weekly/annual cumulative volumes |
| Accumulator | 7 Traffic Accumulators |
| Accumulated data | 10 years, 64 months, and 64 days |
| Operation buttons | Four touch buttons |
| Calendar battery | CR1220 |
| Power Configuration | 24 VDC @ 3 W |
| Analog Output | 4–20 mA, maximum load 600 Ω |
| Communication interface | RS485, supports the Modbus RTU communication protocol. |
| Alarm Output | OCT upper and lower limit alarm output, pulse output, etc. (optional) |
| Relay output | 30 VDC at 1 A, switching frequency less than 2 Hz (optional) |
| Suitable test medium | Water, solutions, chemical reagents (impurities ≤ 4%), etc. |
| Withstand voltage | 0.3MPa |
| Waterproof rating | IP65 |
| Installation Method | The pipe section is modular, with straight connectors used for the joints. |
| Pipe diameter specifications | φ3–φ12.7 |
| Liquid-contact material | UPVC |
| Medium temperature | -10°C to 60°C |
| Ambient temperature | -10°C to 50°C |
| Environmental humidity | Relative humidity: 0%–95%, no condensation |
| Appropriate viscosity for testing | <300 cSt (mm²/s) |
| Cable length | 2.0 meters (extendable to 20 meters) |
Pipeline Specifications
| Specifications | U-φ5 | U-φ10 | |
| Flow range | ml/min | 120-6000 | 470-24000 |
*The above represents the measurable flow range (0.1 m/s–5.0 m/s), while the accuracy-certified flow range is (0.3 m/s–5.0 m/s).
Industry Applications
| New energy | Semiconductor | Industrial Automation | Biopharmaceuticals |
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