Product Description

The KEYENCE FD-A250 is a high-precision air flow sensor amplifier designed to monitor and control gas flow rates in industrial applications. Operating within a flow range of 7 to 250 L/min, it is compatible with clean gases such as air and nitrogen. The FD-A250 features a user-friendly interface with a green LED flow indicator and a red output status LED, facilitating real-time monitoring. Its robust construction ensures reliable performance in demanding environments, making it suitable for applications requiring accurate and consistent air flow measurements.

Technical Specifications

• Model: FD-A250
• Type: Air Flow Sensor Amplifier
• Flow Detection Range: 7 to 250 L/min (standard)
• Zero Cut Flow: 7 L/min (standard)
• Compatible Gases: Air, Nitrogen (N₂)
• Applicable Fluids: Clean gases without dust or oil mist (compressed air per ISO 8573-1 Class 1.1.2 to 1.6.2)
• Operating Fluid Temperature: 0 to +50°C (no condensation or freezing)
• Connection Size: Rc (PT) 1/2
• Display Indicators: Green LED for flow indication; Red LED for output status
• Environmental Resistance:
• Pressure Resistance: 1.0 MPa
• Operating Pressure Range: -0.07 to +0.7 MPa
• Ambient Temperature: 0 to +50°C (no condensation or freezing)
• Ambient Humidity: 10 to 85% RH (no condensation)
• Vibration Resistance: 10 to 55 Hz, 0.75 mm double amplitude, 3 hours each in X, Y, and Z directions
• Shock Resistance: 300 m/s², 10 times each in X, Y, and Z directions (total 60 times)
• Materials:
• Flow Path Components: Aluminum, SUS303, SUS304, Polyetherimide, Fluororubber, Silicone
• Pipe Components: Aluminum Die-cast
• Case Components: Polysulfone, PBT
• Weight: Approximately 190 g (including 3 m connector cable)