FS930 Clamp-on Ultrasonic Flow Meter
Summary:
The clamp-on ultrasonic flow meter is specifically designed for the pure water and softened water industries and can fully replace rotameters and float-type flow meters. It employs the latest time-of-flight ultrasonic measurement principle, utilizing a through-beam ultrasonic signal configuration on the measured pipeline, which delivers high signal strength and excellent stability. With no moving parts whatsoever, it eliminates wear and jamming, ensuring virtually maintenance-free operation.
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The clamp-on ultrasonic flow meter is specifically designed for the pure water and softened water industries and can fully replace rotameters and float-type flow meters. It employs the latest time-of-flight ultrasonic measurement principle, utilizing a through-beam ultrasonic signal configuration on the measured pipeline, which delivers high signal strength and excellent stability. With no moving parts whatsoever, it eliminates wear and jamming, ensuring virtually maintenance-free operation.
Detailed introduction
Product Features
- The FS930 series ultrasonic flow meters offer high customization and are suitable for special applications such as corrosion-resistant and high-temperature environments.
- The product is standardly equipped with an RS485 communication interface and a 4–20 mA analog signal output, enabling remote monitoring and data transmission of the instrument. In addition, a digital switch signal output is available as an optional feature, supporting upper- and lower-limit flow alarms.
- The clamp-on ultrasonic flow meter employs the time-difference method for measurement, enabling installation in just four simple steps without the need to interrupt the pipeline. The measurement process requires no contact with the fluid medium and eliminates the need for shutdowns or production halts.
Technical Specifications
| Product Name | FS930 Clamp-On Ultrasonic Flow Meter (Integrated Type) |
| Accuracy | ±2.0% (±0.5 m/s to 5.0 m/s) |
| Repeatability | 0.8% |
| Data Storage | Cumulative data for days, months, and years can be stored for up to 10 years without loss. |
| Response time | 0.5–60 seconds |
| Analog Output | 4–20 mA, maximum load 600 Ω |
| Alarm Output | OCT output, high/low flow rate, and cumulative pulse output (optional) |
| Communication interface | RS485, supports the Modbus communication protocol |
| Power supply | 24 VDC @ 200 mA |
| Cable length | Standard length: 2.0 meters; can be extended up to 20 meters. |
| Button | Four touch buttons |
| Display screen | OLED 128×64 display, refresh rate of 3.3 Hz |
| Unit of measurement | You can choose between metric and imperial units: cubic meters (m³), liters (L), U.S. gallons (GAL), per hour (hour), or per minute (min). The default unit is m³/h. |
| Accumulator | 7-digit display |
| Suitable medium | Water, seawater, oil, chemicals, etc. |
| Suitable for piping | Carbon steel pipes, stainless steel pipes, plastic pipes, brass pipes, and more. |
| Housing material | Aluminum alloy |
| Ambient temperature | -10℃ to -50℃ |
| Medium temperature | -10℃ to 50℃ |
| Environmental humidity | 0–95% relative humidity, non-condensing |
| Protection Level | IP54 |
Industry Applications
| New energy and liquid cooling fields | Device Traffic Monitoring | Water Industry Management | Cleaning equipment accessories |
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Pipe Size and Measurement Range
| Pipe outer diameter mm | φ9.53 | φ12.7 | φ15 | φ20 | φ25 | φ32 | φ40 | φ50 | |
| Nominal diameter DN | DN6 | DN8 | DN10 | DN15 | DN20 | DN25 | DN32 | DN40 | |
| Commonly referred to as NPS | 1/8 inch | 1/4 inch | 3/8 inch | 1/2 inch | 3/4 inch | 1 inch | 1.2 inches | 1.5 inches | |
| Minimum outer diameter mm | 9.5 | 12.4 | 14.5 | 16.5 | 25 | 32 | 38 | 48 | |
| Maximum outer diameter mm | 10.4 | 13.1 | 15.4 | 23 | 30 | 35 | 45 | 54 | |
| Traffic L/min | smallest | 0.34 | 0.60 | 0.86 | 1.06 | 1.88 | 2.94 | 4.82 | 7.54 |
| Maximum | 11.02 | 19.59 | 27.80 | 52.99 | 94.20 | 147 | 241 | 377 | |
| Traffic cubic meters per hour | smallest | 0.02 | 0.04 | 0.05 | 0.06 | 0.11 | 0.18 | 0.29 | 0.45 |
| Maximum | 0.66 | 1.18 | 1.67 | 3.18 | 5.65 | 8.83 | 14.47 | 22.61 | |
| Pipe outer diameter mm | φ63 | φ75 | φ90 | φ110 | φ140 | φ160 | φ220 | ||
| Nominal diameter DN | DN50 | DN65 | DN80 | DN100 | DN125 | DN150 | DN200 | ||
| Commonly referred to as NPS | 2 inches | 2.5 inches | 3 inches | 4 inches | 5 inches | 6 inches | 8 inches | ||
| Minimum outer diameter mm | 58 | 72 | 86 | 108 | 132 | 158 | 218 | ||
| Maximum outer diameter mm | 64 | 78 | 92 | 116 | 142 | 168 | 228 | ||
| Traffic L/min | smallest | 11.78 | 19.90 | 30.14 | 47.10 | 73.59 | 105.98 | 188.40 | |
| Maximum | 589 | 995 | 1,507 | 2,355 | 3,680 | 5,299 | 9,420 | ||
| Traffic cubic meters per hour | smallest | 0.71 | 1.19 | 1.81 | 2.83 | 4.42 | 6.36 | 11.30 | |
| Maximum | 35.33 | 59.70 | 90.43 | 141.30 | 220.78 | 317.93 | 565.20 | ||
Installation Method
Step One Ensure that the pipe surface is free of dust, paint, or any other contaminants; if the metal pipe surface is rough, it must be polished to a smooth finish using appropriate tools. Then place the lower clamp on the side of the pipe. | Step 2 Align the upper clamp with the lower clamp position; the upper and lower clamps will automatically snap together (due to built-in magnets). Then tighten the top screw until the upper and lower clamps securely grip the pipe. | Step 3 Take out the flow meter and remove the protective film from the sensor’s coupling pad. | Step Four Insert the flowmeter into the upper clamp, then tighten the screws at both ends to complete the installation. | Step 5 Take out the connection cable, screw the plug-end into the flowmeter’s socket—aligning the orientation will allow for easy insertion (the cable’s outgoing direction should match the downstream flow direction)—and then tighten it securely. Next, connect the cable to a DC power supply, and the flowmeter will begin measurement. |
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