FS950 Clamp-on Ultrasonic Flow Meter
Summary:
This flow meter is specifically designed to meet the measurement needs of flexible hoses and small-diameter pipes, and is primarily used in industries such as semiconductor manufacturing, medical applications, chemical process production, fine chemical production, cleaning services, and the beverage industry. It employs an external clamp-on measurement method, secured with four screws for simple installation and operation. The through-beam sensor ensures effective measurement range and reliability, delivering excellent measurement stability. The entire flow meter is manufactured from ABS material using CNC machining, ensuring consistent dimensions, high strength, and good toughness. The non-contact flow sensor combines precise measurement with a high-quality, uniquely compact sensor design, making it suitable for most plastic pipe materials and sizes available on the market, including PVC, silicone resin, PFA, and PTFE.
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This flow meter is specifically designed to meet the measurement needs of flexible hoses and small-diameter pipes, and is primarily used in industries such as semiconductor manufacturing, medical applications, chemical process production, fine chemical production, cleaning services, and the beverage industry. It employs an external clamp-on measurement method, secured with four screws for simple installation and operation. The through-beam sensor ensures effective measurement range and reliability, delivering excellent measurement stability. The entire flow meter is manufactured from ABS material using CNC machining, ensuring consistent dimensions, high strength, and good toughness. The non-contact flow sensor combines precise measurement with a high-quality, uniquely compact sensor design, making it suitable for most plastic pipe materials and sizes available on the market, including PVC, silicone resin, PFA, and PTFE.
Detailed introduction
Product Features
- Built-in advanced measurement chip with a time resolution of 20 ps for rapid response.
- The sensor can rapidly and reliably measure the flow velocity of liquids in plastic pipes. As a non-invasive device that maintains no contact with the process fluid, it is particularly well suited for applications with stringent hygiene requirements, such as liquid flow monitoring in biopharmaceutical processes, medical device manufacturing, and semiconductor equipment production.
- Minimum measurable flow rate as low as ml/s, suitable for ultra-low flow measurement.
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 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 |
Pipeline materials
Plastic pipes
| PVCF | PVC/CPVC | PPR |
| PPH | PFA/PU | High-Density Polyethylene |
Installation Steps
01 Cleaning the Pipeline
The pipeline surface shall be free of dirt, paint, and debris.
02 Installing the Sensor
Snap the sensor’s top and bottom housings onto the tube and tighten the screws.
03 Connecting the Host and Sensors
Connect the flow sensor to the host unit, with one end of the cable connected to the host.
04 Wiring
Remove the output cable, connect it to the host’s output socket, and tighten the connection.
05 Operating Host
Connect the other end of the cable to the power supply, apply power, and observe. When the SQ stabilizes above 50, it indicates that the measurement has stabilized.
Technical Specifications
Product Name | FS950 Ultrasonic Flow Meter |
Measurement accuracy | ±2.0% (0.3 m/s–5.0 m/s) |
Flow rate range | 0.1m/s-5.0m/s |
Linearity | ±2.0% (0.3 m/s–5.0 m/s) |
Repeatability | 0.8% |
Response time | 500ms |
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 units: m³/h, LPM, ml/min, GPM, LPH; the factory default unit is m³/h. |
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 | 4 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 |
Transmissive medium | Water, solutions, chemical reagents (impurities ≤4%), etc. |
Waterproof rating | IP65 |
Installation Method | External-card split type; clamp-and-tube design—simply tighten the screw by hand. |
Pipe diameter specifications | Φ6–Φ12.7 |
Liquid-contact material | Contactless |
Medium temperature | -10℃~60℃ |
Ambient temperature | -10℃~50℃ |
Environmental humidity | Relative humidity: 0%–95%, no condensation |
Transmittance Viscosity | <300 cSt (mm²/s) |
Cable length | 2.0 meters (extendable to 20 meters) |
Select Parameters
| Specifications | -6.35 | -8 | -9.53 | -12.7 | |
| Outer pipe diameter | mm | 6–6.35 | 8 | 9.53-10 | 12–12.7 |
| Nominal Pipe Diameter (Metric) | DN | / | / | DN6 | DN8 |
| Flow range | mL/min | 0–300: ±8 300-6500 | 0–400: ±10 400-9200 | 0–600: ±25 600-13,800 | 0–1100: ±25 1100-20000 |
| Flow range | cubic meters per hour | 0.018–0.396 | 0.024–0.552 | 0.036–0.828 | 0.066-1.2 |
Industry Applications
| Semiconductor | Biopharmaceuticals | Scientific Research and Testing | Fine Chemicals |
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