Product Description

The Keyence FD-SA1NA is a DIN rail-mountable digital amplifier designed for use with Keyence's FD-S series Coriolis flow sensors. It features a dual-row, four-digit 7-segment LED display—red for real-time flow readings and green for set values—allowing for clear and intuitive monitoring. The amplifier supports up to three expansion units, enabling scalable flow measurement solutions. With NPN open collector outputs, it offers versatile integration capabilities for control systems. The FD-SA1NA is engineered for reliability in industrial environments, with an operating temperature range of 0 to +50°C and a robust design to withstand vibrations and humidity.​

Technical Specifications

• Model: FD-SA1NA
• Type: DIN rail-mountable main unit
• Display:
• 4-digit 7-segment LED (upper: red, lower: green)
• Status LEDs: Red (output), Green (setting), Green (bank), Red (alarm), Green (unit)
• Output:
• NPN open collector
• Max 100 mA per channel (40 V or less)
• Residual voltage: ≤1 V
• 3 outputs (N.O./N.C. switchable)
• Analog Output:
• 4 to 20 mA
• Max load resistance: 260 Ω
• Customizable output range
• Power Supply:
• 24 VDC ±10%
• Ripple (P-P): ±10% or less
• Power Consumption:
• Normal mode: 2,200 mW (90 mA)
• Eco mode: 1,680 mW (70 mA)
• 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 direction (X, Y, Z)
• Material:
• Main body: Polycarbonate
• Key top: Polyacetal
• Front panel: Polycarbonate
• Cable: PVC
• Weight: Approximately 115 g
• Expansion Capability: Supports up to 3 expansion units per main unit (total of 4 units)​