KEYENCE FD-V40A,FD-QP1,FD-Q20C,FD-Q10CH,FD-Q10C,FD-A50,FD-42G,F-4HA,F-3HA,F-2HA
KEYENCE FD Series Full Flow Sensing Lineup Delivers All-Round Gas & Liquid Process Monitoring Solutions
Industry News
Date: June 23, 2026Source: Global Industrial Automation Media
OSAKA, Japan – KEYENCE Corporation, a global leader in factory automation sensors and measurement equipment, has consolidated its full-spectrum FD flow sensor portfolio, covering gas micro-flow measurement, clamp-on liquid flow detection, inline flow monitoring and dedicated fiber optic sensing accessories, including core models FD-V40A, FD-QP1, FD-Q20C, FD-Q10CH, FD-Q10C, FD-A50, FD-42G, F-4HA, F-3HA and F-2HA. This integrated product matrix provides one-stop precise flow control solutions for automotive, electronics, semiconductor, chemical, food & beverage and precision coating industries, solving long-standing pain points of incompatible measuring ranges, pipe reconstruction costs and unstable tiny flow detection on production lines.
FD-V40A & FD-A50: High-Precision Separate-Amplifier Gas Flow Sensing System
As the core amplifier unit of the FD-V40 gas flow series, FD-V40A adopts DIN rail mounting design with low power consumption under normal and eco modes, supporting stable signal output for gas sensor heads including FD-A50. FD-A50 is specially calibrated for air and nitrogen micro-flow measurement, covering medium gas flow ranges for semiconductor purging, welding shielding gas and industrial air circuit monitoring. The split structure separates the control amplifier from the detection head, enabling flexible layout in narrow equipment cabinets while maintaining ±high repeatability even under fluctuating gas pressure. Matched with FD-42G inline gas flow sensor, the system realizes end-to-end gas flow real-time tracking without fluid contact, eliminating pipeline pressure loss and leakage risks in gas supply loops.
FD-Q Series Clamp-On Liquid Flow Sensors: FD-Q10C, FD-Q10CH, FD-Q20C & FD-QP1
The FD-Q clamp-on liquid flow lineup stands out for its non-intrusive installation, requiring no pipe cutting or production line shutdown during retrofitting.
- FD-Q10C & FD-Q10CH: Designed for small-diameter pipes (1/4” to 3/8”), compatible with metal and resin tubes, measuring DI water, cooling oil and mild chemicals within 20–30 L/min rated flow. FD-Q10CH adds enhanced anti-interference circuits for high-bubble fluid environments in precision coating and injection molding cooling circuits基恩士.
- FD-Q20C: Targets medium pipelines from 1/2” to 3/4”, supporting maximum 100 L/min flow for central cooling systems and chemical liquid delivery pipelines, with built-in 4-digit dual LED display for on-site flow value reading.
- FD-QP1: Universal auxiliary processor module for FD-Q series, expanding analog output and IO-Link communication functions to connect seamlessly with PLC, MES and industrial IoT platforms for centralized flow data logging and abnormal flow alarm linkage.
All FD-Q liquid sensors operate reliably within 0–85°C fluid temperature, with IP67 dustproof and waterproof housing to withstand harsh workshop environments, ideal for automotive welding cooling, electronic component cleaning and pharmaceutical liquid transfer monitoring.
F-2HA, F-3HA, F-4HA Fiber Optic Flow Detection Accessories
Complementing the FD main sensor units, KEYENCE’s F-HA series fiber optic heads (F-2HA, F-3HA, F-4HA) extend micro-flow detection capability for ultra-narrow tubing and tiny dispensing nozzles. These fiber accessories cooperate with FD-V40A amplifiers to capture ultra-low flow signals of release agents, adhesives and trace chemical liquids, realizing instant flow verification during high-speed dispensing, spraying and micro-dosing processes. Different fiber lengths and sensing distances correspond to diverse nozzle sizes, covering micro-manufacturing scenarios where traditional clamp-on sensors cannot be installed基恩士.
Cross-Industry Application Advantages of the Complete FD Portfolio
- Zero Pipeline Modification Cost: FD-Q clamp-on and FD-V40 split gas sensors avoid pipe cutting, cutting retrofitting downtime and maintenance costs by over 60% compared with inline invasive flow meters.
- Full Media Compatibility: The entire lineup supports gas (air, nitrogen, argon) and liquid (pure water, coolant, industrial oil, chemical solvents) measurement, covering nearly all mainstream fluid media in discrete manufacturing.
- Modular & Expandable Architecture: Amplifiers, sensor heads, processing modules and fiber accessories can be freely combined, allowing customers to build customized flow monitoring systems based on pipe diameter, flow range and communication demands.
- Digital Smart Manufacturing Ready: Built-in digital displays, analog outputs and IO-Link connectivity support real-time data upload to industrial cloud platforms, facilitating predictive maintenance of fluid supply loops and reducing production rejects caused by insufficient or abnormal flow.
Market Outlook
With global manufacturing accelerating intelligent transformation, stable and low-cost flow monitoring has become a mandatory process control link for precision production. KEYENCE’s full FD series lineup integrates gas, liquid and micro-flow detection into one product ecosystem, filling the market gap of fragmented single-function flow sensors. Industry analysts point out that the FD-V40A, FD-Q and F-HA combined solution will become the preferred standard flow sensing package for new energy, semiconductor and precision machinery production lines in the next three years, helping manufacturers achieve higher process repeatability and lower fluid consumption costs.
About KEYENCEKEYENCE Corporation develops and manufactures factory automation sensors, measurement systems, machine vision and process monitoring equipment for global manufacturing customers. The company’s product portfolio focuses on high-precision, easy-integration industrial solutions to boost production efficiency and quality control across all manufacturing verticals.
