Product Description

The Keyence FD-V70A is a compact, DIN rail-mountable digital amplifier designed to work with Keyence's FD-V70 series flow sensors. It offers precise flow measurement capabilities for various fluid types, providing real-time monitoring and control. The amplifier features a clear 3-digit 7-segment LED display for easy readout, with selectable response times ranging from 0.5 to 60 seconds to suit different application needs. Its NPN open collector outputs allow for integration with external control systems, making it ideal for industrial automation and process monitoring applications.​

Technical Specifications

• Model: FD-V70A
• Type: DIN rail-mountable digital amplifier
• Power Supply: 12 to 24 VDC (Ripple P-P 10% or less)
• Power Consumption:
• Normal Mode: 12 V → 125 mA, 24 V → 83 mA
• Eco Mode: 12 V → 110 mA, 24 V → 70 mA
• Display: 3-digit 7-segment LED (Upper: 8 mm red, Lower: 5.7 mm green)
• Display Refresh Rate: 5 times/sec (10 times/sec in standard mode with 0.5 sec response time)
• Response Time: Selectable 0.5, 1, 2, 5, 20, 60 seconds
• Flow Detection Range:
• FD-P05: 0.5 to 5 L/min
• FD-P20/F20: 2 to 20 L/min
• FD-P50/F50: 5 to 50 L/min
• FD-P100: 10 to 100 L/min
• FD-F04: 0.4 to 4 L/min
• Analog Output: 4 to 20 mA (Max load resistance: 260 Ω)
• Control Output: NPN open collector, Max 50 mA (40 V or less), Residual voltage 1 V or less, 2 outputs (N.O./N.C. switchable)
• Abnormality Alarm Output: NPN open collector, Max 20 mA (27 V or less), Residual voltage 1 V or less
• Repeatability: ±0.5% of F.S. (at fluid temperature 20°C, ambient temperature 25°C)
• Environmental Resistance:
• Ambient Temperature: 0 to +50°C (No freezing)
• Ambient Humidity: 35 to 85% RH (No condensation)
• Vibration Resistance: 10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of X, Y, and Z axes
• Material: Main body and cover: Polycarbonate, Key top: Silicon rubber
• Weight: Approximately 85 g (including power cable)