Description
The Keyence FD-XS1 is a compact, clamp-on micro flow sensor head designed for precise measurement of ultra-low liquid flow rates up to 1 L/min. Compatible with both metal and plastic piping, it provides non-invasive monitoring of water, oil, chemicals, adhesives, and other liquids without risk of contamination or pressure loss.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Keyence |
| Category |
Sensors & Switches |
| Part Number |
FD-XS1 |
| Subcategory |
Flow Transmitter |
| Type |
Clamp-on Micro Flow Sensor Head |
| Supported Pipe Materials |
Metal and plastic pipes (soft/hard) |
| Supported Fluids |
Liquids (water, oil, adhesive, grease, chemicals, etc.) |
| Fluid Temperature Range |
0 °C to 100 °C (32 °F to 212 °F) |
| Maximum Rated Flow Rate |
0 to 1000 mL/min (1 L/min) |
| Zero Cut Flow Rate |
20 mL/min (variable, default) |
| Display Resolution (Instantaneous Flow) |
0.1 / 1 / 10 mL/min (on controller) |
| Display Resolution (Shot Amount) |
0.001 / 0.01 / 0.1 / 1 mL (on controller) |
| Repeatability (Plastic Pipe) |
±0.6% F.S. (50 ms) / ±1.9 mL/min (500 ms) |
| Repeatability (Metal Pipe) |
±1% F.S. (50 ms) / ±3.2 mL/min (500 ms) |
| Hysteresis |
Variable |
| Supported Attachments |
FD-XC1R1 / FD-XC1R2 (plastic), FD-XC1M (metal) |
| Display Method |
Status indicator |
| Enclosure Rating |
IP65 / IP67 / IP68G (JIS C0920) |
| Ambient Temperature Range |
0 to 60 °C (32 to 140 °F) |
| Relative Humidity Range |
35% to 85% RH (no condensation) |
| Vibration Resistance |
10–55 Hz, 1.5 mm amplitude, 2 hours each for X/Y/Z axes |
| Shock Resistance |
50 G, 11 ms, 3 times each for X/Y/Z axes |
| Material (Sensor Head) |
PPS/PPSU, in-cable amplifier: PPS; Cable: PVC |
| Material (Clamp Set) |
Plastic: PPS/PPSU; Metal: SUS304/SUSXM7 |
| Weight |
Approx. 230 g (0.51 lb) |
Information About FD-XS1
The FD-XS1 is part of Keyence’s FD-X Series, engineered for accurate flow detection in narrow tubes and small-diameter pipes. Using ultrasonic measurement technology, it supports liquid temperatures from 0 °C to 100 °C and delivers reliable readings even with viscous or opaque fluids. The sensor’s compact body allows installation in tight spaces, and it is compatible with both plastic (soft/hard) and metal pipe attachments. Built with a durable PPS/PPSU and SUS304 construction, the FD-XS1 offers IP65/IP67-rated environmental protection and exceptional repeatability, making it suitable for precision applications such as dosing, dispensing, and lubrication monitoring.
Key Features:
- Non-Invasive Measurement: Clamp-on design eliminates the need to cut or alter piping.
- High Sensitivity: Detects micro flow rates as low as 0.1 mL/min with excellent stability.
- Wide Compatibility: Works with both metal and resin pipes ranging from 2.7 mm to 14 mm in diameter.
- High Repeatability: ±0.6% F.S. for plastic pipe attachment and ±1% F.S. for metal pipe attachment.
- Durable and Hygienic Design: Resistant to contamination and suitable for sanitary and chemical fluids.
- Broad Fluid Support: Monitors water, oil, adhesives, greases, and chemicals.
- Temperature Resistance: Operates at pipe surface temperatures from 0 °C to 100 °C (32 °F to 212 °F).
- Environmental Robustness: IP65/IP67/IP68G enclosure for protection against dust, water, and vibration.
- Compact Build: Lightweight 230 g sensor ideal for integration in confined machine layouts.
- Flexible Integration: Compatible with Ethernet/IP®, DeviceNet®, CC-Link, and IO-Link systems via FD-X controllers.
The FD-XS1 delivers the precision, hygiene, and reliability required for micro-scale flow monitoring in industrial and laboratory environments.
