Guiyang.bai@honno-auto. com
86-13840589744
This all-in-one Clamp-On Ultrasonic Flow Meter reads flow directly on a 1.54-inch TFT-LCD color screen (240×240) that rotates in four directions for comfortable viewing in any orientation. It fits small-diameter pipelines from DN15 to DN50 and works on BOTH metal pipes (stainless steel, copper, carbon steel) and plastic pipes (PVC/CPVC, PPR, PPH, PVDF, HDPE, PU) – one instrument covers almost any pipe material found on site. Simply clamp it on: no pipe cutting, no production stop, no pressure loss. Flow velocity range is 0.3–5.0 m/s (up to 35 m³/h depending on pipe size) with ±3% FS accuracy. It measures clean single liquids – tap water, pure and ultrapure water, diluted acids and alkalis, organic solvents, alcohol and beverage water – and is proven across the cleaning-equipment industry, semiconductor fabs, food, beverage, pharmaceutical, printing & dyeing and chemical plants. Outputs: RS-485 (Modbus RTU) and 4–20 mA, menu-driven setup with 3 touch buttons, 10–36 VDC supply, IP54-rated housing and a 4 m self-locking six-core cable.
The HNF00-B uses ultrasonic transit-time measurement with a highly reliable signal-processing circuit that samples, calculates and corrects flow velocity. An all-in-one clamp-on design means you simply clip it on – no pipe cutting, no production stop, no pressure loss.
A 1.54″ TFT-LCD colour screen (240×240) rotates in four directions for comfortable viewing in any mounting orientation, operated via three menu keys. One instrument works on both metal pipes (stainless steel, copper, carbon steel) and plastic pipes (PVC/CPVC, PPR, PPH, PVDF, HDPE, PU). Non-contact measurement never touches the liquid – hygienic and safe – with bidirectional flow, volume totalisation and bubble detection.
Size: DN15 – DN50 Flow: 0.2 – 35 m³/h Accuracy: ±3% FS Display: 1.54″ TFT colour (rotatable) Outputs: 4-20mA / RS485 Modbus
Applications: cleaning equipment, semiconductor wet process & chemical dosing, pharmaceutical proportioning, beverage & food processing, fine chemicals & solvents, flat glass cleaning, printing & dyeing, water treatment & pure water systems, new energy equipment, medical equipment, intelligent aquaculture, smart agriculture, circulating cooling water monitoring.
Select this model when all of the following conditions are met:
The medium is a single clean liquid: tap water, pure/ultrapure water, dilute acids/alkalis, organic solvents, alcohol, beverage water, etc.
Pipe size is DN15–DN50, made of metal (stainless/copper/carbon steel) or plastic (PVC/PPR/PPH/PVDF/HDPE/PU).
The site does not allow pipe cutting or shutdown, and clamp-on quick installation is required.
Local colour display of instantaneous and totalised flow is needed, with a rotatable screen for any mounting direction.
4–20 mA or RS485 Modbus output is required for PLC or supervisory system integration.
Hygienic requirements are high (food, pharma, semiconductor) and the sensor must not contact the liquid.
Please consult us first if: the medium carries many bubbles or solids, temperature exceeds 60 °C, pipe lining is too thick or heavily scaled, pipe size exceeds DN50, or custody-transfer accuracy is required.
The sensor clamps onto the outside of the pipe – no cutting, no process interruption. Installation and commissioning take only minutes, ideal for retrofitting existing lines and temporary flow monitoring.
Select the pipe material in the menu and the same instrument measures stainless, copper and carbon steel as well as PVC/CPVC, PPR, PPH, PVDF, HDPE and PU pipes, reducing on-site spare-part variants.
Ultrasound passes through the pipe wall; the sensor never touches the liquid. Zero contamination, no blockage, no dead volume and no pressure loss – ideal for high-purity, food and pharmaceutical duties.
The 1.54″ TFT colour display rotates in four directions with three menu keys. 4–20 mA and RS485 Modbus outputs connect directly to PLC and SCADA, supporting bidirectional metering, volume totalisation and bubble detection.
| Model | HNF00-B Clamp-On Ultrasonic Flow Meter |
|---|---|
| Principle | Ultrasonic transit-time; signal-processing circuit samples, calculates and corrects to output flow |
| Nominal sizes | DN15, DN20, DN25, DN32, DN40, DN50 |
| Pipe materials | Metal: stainless steel, copper, carbon steel; plastic: PVC/CPVC, PPR, PPH, PVDF, HDPE, PU (menu selectable) |
| Flow range | 0.2 – 35 m³/h (by size, see table below) |
| Max. error | ±3% FS |
| Wetted parts | None (clamp-on non-contact measurement) |
| Connection | Clamp-on mounting, no pipe cutting |
| Medium temperature | 0 … 60 °C |
| Ambient temperature | −10 … 50 °C |
| Display & operation | 1.54″ TFT-LCD colour (240×240), four-direction rotatable; three menu keys |
| Output signals | 4–20 mA; RS485 Modbus RTU |
| Power supply | 10–36 VDC / 500 mA |
| Housing | ABS |
| Features | Bidirectional flow, volume totalisation, bubble detection; electronics fully integrated in the sensor, no external converter |
| Approvals & standards | CE; functional safety per IEC 61508 for IEC 61511 safety applications |
| Size | Flow range (m³/h) |
|---|---|
| DN15 | 0.2 – 3.5 |
| DN20 | 0.4 – 6 |
| DN25 | 0.5 – 9 |
| DN32 | 0.9 – 15 |
| DN40 | 1.3 – 23 |
| DN50 | 2.0 – 35 |
Confirm 4 items before ordering:
Pipe nominal size and material – to select the correct DN15–DN50 clamp and menu material option.
Medium, temperature and normal flow – to confirm within 0–60 °C and 0.2–35 m³/h.
Output type (4–20 mA / RS485 Modbus) and supply voltage.
Industry application (new energy / medical / aquaculture / agriculture) and cable length.
Thoroughly clean the external mounting area and choose a dense wall section. Press the dedicated coupling pad firmly against the pipe wall, free of bubbles, to ensure good ultrasonic coupling. The arrow on the nameplate must align with flow direction. After power-up, use the three keys to select pipe material, size and liquid type; verify stable signal strength before reading. Wire the aviation plug by wire colour (brown +, black −, green A, white B, red I+, yellow I−).
4–20 mA analogue output: transmits instantaneous flow to PLC analogue modules or recorders for process monitoring and data acquisition.
RS485 Modbus RTU: supports digital networking with PC/SCADA/configuration software for flow totalisation, remote monitoring and multi-instrument management.
Bidirectional metering & bubble detection: measures forward/reverse flow with volume totalisation and detects bubbles during filling or dispensing to support process judgement.
Fully integrated electronics: all circuits are inside the sensor – no external processing unit – giving a compact body suited to OEM equipment integration.
For OEM projects, please specify pipe material, size, liquid type, temperature and output protocol; custom calibration for your specified pipe, size, temperature and liquid is available.
Monitors cleaning-water flow on cleaning lines and flat-glass washers; non-invasive installation keeps clean circuits uncontaminated and makes retrofit and line expansion easy.
Used in semiconductor wet cleaning and acid/alkali/solvent dosing lines; the sensor never contacts chemicals and requires little maintenance in cleanrooms.
Monitors water and liquid flow on pharmaceutical proportioning, beverage and food lines – hygienic, no pressure loss and suited to clean-process requirements.
Measures solvents, dilute acids/alkalis, alcohol and dyeing water; one meter handles both metal and plastic pipes to reduce spare-part variety.
Deployed as a clamp-on flow monitoring element on new-energy equipment, medical devices, smart aquaculture and smart agriculture, with 4–20 mA/RS485 direct to control systems.
To confirm the correct HNF00-B configuration, please provide: pipe nominal size, pipe material (metal/plastic and exact type), medium name & temperature, normal and maximum flow, output type (4–20 mA / RS485), supply voltage, industry application (new energy/medical/aquaculture/agriculture) and cable length. If necessary we will request additional details on external pipe condition and mounting orientation.
Metal pipes (stainless steel, copper, carbon steel) and plastic pipes (PVC/CPVC, PPR, PPH, PVDF, HDPE, PU) – just select the material in the menu; one instrument covers common on-site materials.
Yes. The sensor clamps onto the outside of the pipe – no cutting, no shutdown. Clean the mounting surface, fit the coupling pad tightly and measurement starts.
Yes. The 1.54″ TFT-LCD colour display rotates in four directions with three menu keys, suiting different mounting angles and viewing positions.
Overall range is 0.2–35 m³/h: DN15 0.2–3.5, DN20 0.4–6, DN25 0.5–9, DN32 0.9–15, DN40 1.3–23, DN50 2–35 m³/h.
4–20 mA connects directly to PLC analogue modules; RS485 uses Modbus RTU to connect to PC or SCADA. Wire the aviation plug by wire colour and integration is complete.
HNF00-B Clamp-On Ultrasonic Flow Meter Datasheet (PDF)
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Send us pipe material & size, medium temperature, flow range, output type and industry, and we will confirm whether HNF00-B is suitable and provide a selection recommendation before quotation.
Submit your application details »Contact: HongNuo
Phone: 13840589744
Tel: 86-13840589744
Email: Guiyang.bai@honno-auto. com
Add: Zhongguancun Innovation Center, No. 28 Huahai Road, Shenyang Economic and Technological Development Zone, Liaoning Province
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