Guiyang.bai@honno-auto. com
86-13840589744
Integrated flow + temperature sensor with a new digital design and a 0.96-inch color display showing instantaneous flow AND temperature on one screen — it replaces conventional thermal flow switches and saves installation space. Flow range 1–200 cm/s (water) and 3–300 cm/s (oil); temperature range −20…100 °C with ±1.5 °C accuracy. Universal for water and oil with low-flow alarm capability: flow-interruption detection for hydraulic systems, circulating water, cutting fluids and lubricating oils, plus pump idling protection. Output configuration options: two switch outputs + one analogue, or one switch + two analogue channels, selectable PNP/NPN, 0/4–20 mA or 0/1–5/10 V for both flow and temperature. Key setting, 24 VDC ±20%, 100 bar, IP67, M12 connector, medium −20…100 °C. Process connections: M18×1.5 external/internal thread or hygienic chuck connections (1/2″ and 1.5″, ISO 2852); wetted parts 316L / EPDM.
The HNF10-C is an integrated flow and temperature sensor based on the heat-conduction principle, with a new digital design and a 0.96-inch color display showing both instantaneous flow and medium temperature on one screen. It replaces conventional thermal flow switches and saves installation space.
Universal for water and oil with low-flow alarm capability, it is widely used for flow-interruption detection in hydraulic systems, circulating water, cutting fluids and lubricating oils, as well as pump dry-run protection. Multiple output configurations – two switches plus one analogue, or one switch plus two analogue channels – offer flexible adaptation to different control requirements.
2-in-1: Flow + Temperature Media: Water / Oil Outputs: PNP/NPN + 4–20 mA / 0–10 V Supply: 24 VDC Protection: IP67
Applications: hydraulic systems, circulating water circuits, cutting fluid management, lubricating oil monitoring, pump dry-run protection, machine cooling circuits, food & beverage processing, pharmaceutical equipment, process temperature monitoring, coolant temperature control.
Select this model when all of the following conditions are met:
The measured medium is water or oil, and both flow status and medium temperature need to be monitored simultaneously.
Flow velocity is within 1–200 cm/s for water or 3–300 cm/s for oil, suitable for low-flow alarm and no-flow detection.
Installation space is limited and one sensor replacing separate flow and temperature switches is preferred to reduce pipe penetrations.
Both switching alarms and analogue continuous signals are required for connection to a PLC or equipment control system.
The pipeline uses standard threaded connections or hygienic clamp connections for food / pharmaceutical clean lines.
IP67 protection and all-stainless wetted parts are required for damp or mildly corrosive environments.
Please consult us first if: the medium contains large amounts of solids or fibres, is highly corrosive, exceeds −20…100 °C or 100 bar, requires a communication interface, or is gaseous.
One sensor performs both flow switching and temperature measurement, directly replacing separate flow switch and temperature switch units. This reduces pipe penetrations and mounting points, ideal for compact machinery builds.
The 0.96-inch color TFT screen shows instantaneous velocity / flow and current medium temperature at the same time. Combined with status LEDs, loop status can be assessed quickly during commissioning and inspection without extra instruments.
Two output schemes are available: A3 (two switches + one analogue) and SA (one switch + two analogue). PNP/NPN is selectable, and analogue outputs support 4–20 mA / 0–10 V standard signals to match various control systems.
304L housing with 316L wetted parts, IP67 waterproof rating and 100 bar pressure rating cover industrial hydraulics, lubrication, cooling and food-hygiene applications with long-term reliability.
| Model | HNF10-C |
|---|---|
| Category | Integrated Flow & Temperature Sensor / Switch |
| Measuring principle | Heat-conduction principle |
| Measured media | Water, oil and similar single-phase liquids |
| Flow velocity range | Water 1–200 cm/s; Oil 3–300 cm/s |
| Temperature range | −20 … 100 °C |
| Temperature accuracy | ±1.5 °C (probe immersed in medium) |
| Display & operation | 0.96-inch color display, 3 push-buttons |
| Wetted materials | 316L stainless steel / EPDM seals |
| Housing material | 304L stainless steel |
| Process connections | Male thread / M18×1.5 female thread; hygienic chuck 1/2", 1.5" (ISO 2852) |
| Probe lengths | 25 mm, 30 mm, 50 mm, 60 mm, 80 mm; custom lengths available |
| Output configurations | A3: 2 switches + 1 analogue; SA: 1 switch + 2 analogue |
| Switching outputs | PNP / NPN selectable |
| Analogue outputs | 0 / 4–20 mA, 0 / 1–5 V, 0–10 V (assignable to flow or temperature) |
| Supply voltage | 24 VDC ±20% |
| Max. process pressure | 100 bar |
| Medium temperature | −20 … 100 °C |
| Ambient temperature | −20 … 80 °C |
| Electrical connection | M12 × 1 circular connector |
| Protection class | IP67 |
| Approvals & standards | CE marked; SIL functional safety; IEC 61508 compliant for IEC 61511 safety applications |
Confirm 4 items before ordering:
Medium type and operating temperature range – to verify compatibility with wetted materials and seals.
Connection type and pipe diameter – to select thread or hygienic clamp and match the correct probe length.
Output configuration – choose A3 (two switches + one analogue) or SA (one switch + two analogue) according to control needs.
Switch set points and analogue ranges – define low-flow alarm thresholds and temperature signal spans.
Install on a straight pipe section with fully developed flow, avoiding valves, elbows and pump outlets where flow is disturbed. Orient the probe facing the flow for good heat exchange. After wiring, verify display values and output signals at zero flow, then set flow alarm points and temperature ranges via the push-buttons. Validate switching logic at normal flow before putting the circuit into automatic operation.
Switching outputs (PNP / NPN): used for low-flow alarm, no-flow detection, pump dry-run protection and temperature over-limit interlock, directly connectable to PLC digital inputs or relay circuits.
Analogue outputs (4–20 mA / 0–10 V): provide continuous flow or temperature values for PLC analogue modules, recorders or frequency inverters for continuous process monitoring and regulation.
Configuration A3 (2 switches + 1 analogue): ideal for applications requiring flow alarm + temperature alarm + one continuous measurement, such as cooling circuit protection.
Configuration SA (1 switch + 2 analogue): ideal for continuous flow and temperature acquisition plus one alarm point, such as process parameter monitoring and data logging.
For OEM volume projects, please specify controller input type, switching logic, analogue ranges and connection details with your enquiry so we can match the optimal output configuration.
Monitors oil flow and temperature in hydraulic power units and lubrication systems, triggering alarms on insufficient flow or abnormal temperature to protect hydraulic components and drives from overheating or dry-running damage.
Installed in coolant lines of machining centres and CNC machines to simultaneously monitor coolant flow and temperature, ensuring consistent cooling performance and protecting tools and spindles from overheating.
Used in industrial circulating water, cooling towers and heat exchanger circuits to monitor water flow status and return temperature for energy management and equipment protection.
The hygienic clamp version fits clean lines in food, beverage and biopharmaceutical processes, supporting simultaneous flow and temperature monitoring in CIP-compatible environments.
Provides both no-flow shutdown protection and medium temperature monitoring at the pump discharge in one device, especially suitable for space-limited integrated machinery and compact systems.
To confirm the correct HNF10-C configuration, please provide: medium name & temperature range, pipe diameter & connection type, operating velocity or flow rate, output configuration (A3 or SA), switch type (PNP/NPN) & set points, analogue type & measuring span, required probe length, and whether hygienic connection is needed. If necessary we will request additional details on mounting orientation and line pressure to ensure measurements and switch points match operating conditions.
Yes. The HNF10-C features a 0.96-inch color display that shows both instantaneous flow / velocity and current medium temperature on the same screen for convenient on-site reading.
With the SA configuration (one switch + two analogue channels), both flow and temperature can be output as continuous analogue signals; the switch channel can be assigned to either flow or temperature alarm.
Yes. It measures oil velocity from 3 to 300 cm/s. The low-flow switch point can be set via the push-buttons to trigger an alarm below threshold and protect pumps from dry running.
Via the keypad you can freely assign which physical quantity (flow / temperature) each switch and analogue channel represents, as well as set points and spans, to match different monitoring and interlock strategies.
1/2-inch and 1.5-inch hygienic clamp connections are available, conforming to ISO 2852, with 316L wetted parts to meet clean-process requirements.
HNF10-C Combined Flow & Temperature Sensor Datasheet (PDF)
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Send us medium, pipe size, connection type, velocity range, temperature range and output configuration, and we will confirm whether HNF10-C 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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