Clamp-On Ultrasonic Flow Meter

FN-V Series

Adopts an integrated stainless steel claw design to ensure precision and stability. Features adjustable position, speed, and gripping force to meet diverse gripping needs. Built-in motor and controller with an integrated design greatly save space and enhance installation convenience.

Features of clamp-on ultrasonic flowmeters include:
1. Suitable for all kinds of liquids
2. Suitable for all kinds of pipes
3. The flowmeter clamps the outer diameter of the measuring tube, and does not need to cut the pipe for installation and contact with the liquid
4. Quick installation, set the pipe diameter to complete the installation and measurement
5. No contact with liquid, not afraid of dirt and corrosion, zero pressure loss
6. It can be installed and used without downtime

FN-V-Clamp-On Ultrasonic Flow Meter
  • Product Features
  • Applications
  • Specifications
  • Dimension Information
  • Code of Order

Non-Invasive Measurement

No need to make direct contact with the fluid. Can be installed externally on the pipe without shutting down operations, avoiding contamination or process disruption.

High Accuracy and Stability

Delivers precise flow measurement with excellent long-term stability. Suitable for applications that demand accuracy and reliability.

Strong Adaptability

Compatible with various fluids and pipe materials. Accurately measures even under challenging conditions such as high viscosity, corrosive liquids, or extreme environments.

Applications

Applied in various environments

For example, liquid flow and cumulative flow monitoring in various industries such as semiconductor industry, electronics industry, and chemical industry

Semiconductor
Electronics
Electronics

It is used in high heat dissipation environments

For example, flow monitoring of liquid cooling systems such as data processing centers and AI servers

AI liquid-cooled server
Data servo factory

Applied in outdoor environments

For example, flow measurement of cooling systems such as outdoor environments

Petrochemical industry
oil and gas industry

Applicable   Pipe SizeOuter Pipe   DiameterØ13~Ø16 Ø16~Ø18Ø18~Ø23Ø23~Ø28Ø28~Ø37 Ø37~Ø44Ø44~Ø52Ø52~Ø64Ø64~Ø83 Ø83~Ø100Ø100~Ø127
Metric UnitsDN08DN10DN15 DN20DN25DN32DN40 DN50DN65DN80DN100
Nominal Diameter1/4"3/8"1/2" 3/4"1"1   1/4"1   1/2" 2"2-1/2"3"4"
Pipe MaterialMetal pipes, rigid resin   pipes
Fluid Temperature0°C to 85°C (Pipe surface   must not be frozen)
Maximum Flow Rate   (L/min)19.630.653 94.2147.3241.3377 58999615082356
Zero Cut-Off Flow   Rate (L/min)0.30.51 6101525
Detection PrincipleTransmission Time   Difference
DisplayTFT2.0"
Display Refresh   Cycle4 times/sec
ResolutionInstantaneous Flow   (L/min)0.01/0.1/1 L/min
Accumulated Flow (L)0.01/0.1/1 (up to 8   digits)
Response Time0.5s/1.0s/2.5s/5.0s/10.0s
Measurement   AccuracyAt 10% to 100% of   F.S.±2% of   F.S.   Note 1, 2, 3
At 0% to 10% of F.S.±1% of   F.S.   Note 1, 2, 3
Repeatability F.S.   *Note 2, 4±0.8%
Hysteresis   (Deadband)Variable
Flow UnitL/min, m³/h
Pulse Output Unit   (L)0.1 ~ 999.99
Data Retention TimeApprox. 1 year
Power I/O ConnectorM12 8-pin connector
OutputSwitch OutputInstant/Window/Pulse/Accumulated/Error/No   Signal
     NPN/PNP switchable open collector output: ≤26.4 VDC, ≤250 mA/ch, residual voltage ≤2.5 V
Analog   Output1 ~ 5 V /   0 ~ 10 V (switchable) load impendence：50kΩ
     4 ~ 20 mA / 0 ~ 20 mA (switchable) Load resistance: ≤300 Ω   Note 5
Power   SupplySupply VoltageDC24V   ±10%   Note 6
Current Consumption≤200 mA   Note 7
Protective Circuit   *Note 8Power reverse protection,   surge protection, output short-circuit protection
Environmental   ResistanceEnclosure Protection   RatingIP65/ IP67
Operating Temperature−20℃ to +60℃ (no freezing)
Operating HumidityOperating humidity: 35% to   85% RH (non-condensing)
Vibration Resistance10Hz to 500 Hz power   spectral density: 0.816 G²/Hz (X, Y, Z directions)
Menu LanguageTraditional Chinese,   English
Relay OutputRelay output: ≤27VDC,   max 250mA, freq.   <2Hz
Communication   InterfaceRS-485
Calendar BatteryCR1220
Applicable MediumWater, solution, chemical   reagents (impurities ≤4%)
Applicable Viscosity<300CST (mm²/s)
Weight (g)316309392 503401406416
Notes :
1. Ultrasonically conveyed liquids should not contain a large amount of bubbles. Measurement stability may vary depending on the pipe type and condition.
2. Errors may occur due to customer-supplied piping types, conditions, fluid types, and fluid temperatures.
3. Zero-point adjustment is performed at a fixed ambient temperature of 25°C, considering linearity error.
4. The definition of flow velocity distribution assumes a stable state and does not include pulsation or variation caused by equipment factors. The listed F.S. (full scale) should be converted based on the rated flow range.
5. The output impedance of the analog voltage output type is approximately 1kΩ. If the load impedance is low, output error increases. Please verify the error caused by load impedance before use.
6. When DC24V is connected but the load is not, the current and power consumption may vary depending on load connection status. Please pay extra attention.
7. Load current must be below 200 mA. (Excluding expansion module)
8. The protective circuitry of this product only works for certain connection errors and load short circuits. It does not protect against all wiring errors.

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Safety Precaution

Safety Precaution for Chelic Products

Please read the "Safety precaution" and the "Instruction" before ordering for ensuring safe & correct usage purpose.

The purpose of the safety precautions aim to previent accidents or injuries caused by improper use of the product.Please fully understand the instructions and warnings in the manual and strictly follow all safety guidelines.

●Safety Notes

Our products are highly programmable machines with a great DoF.To ensure the proper use of our products, please pay close attention to the following safety instructions.Without safety-compliant operations or incorrect operation on products may cause malfunction or damage. Or even lead to injury, death, or serious accidents while installing, operating, adjusting, or inspecting the product.

⚠Danger > Improper operation may lead to fatal injury or life-threatening situations.

⚠Warning > Incorrect operation could potentially result in death or serious injury.

⚠Caution > Incorrect operation may lead to personal injury or damage to property.

💡Tip > Indicates key points regarding the product operation sequence.

For more details, please refer to the catalog or contact our sales representatives.

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