Product Description

The Keyence FS-V12 is a compact, high-performance fiber amplifier designed for use with Keyence's fiber optic sensors. It features a red LED light source and offers selectable response times of 250 µs (FINE), 500 µs (TURBO), and 1 ms (SUPER TURBO), catering to various detection needs. The amplifier supports both LIGHT-ON and DARK-ON operation modes, selectable via a switch. It includes a digital 4-digit LED display and a bar LED monitor with one orange and six green LEDs for clear status indication. The FS-V12 is equipped with timer functions (ON-delay: 40 ms, OFF-delay: 10 ms) and offers NPN open-collector control output with a maximum load of 100 mA. Designed for durability, it features reversed polarity protection, over-current protection, and a surge absorber. The amplifier can be expanded with up to 16 additional units, allowing for scalable sensor setups. With an operating voltage of 12 to 24 VDC and a current consumption of 50 mA or less, the FS-V12 is suitable for a wide range of industrial applications.​

Technical Specifications

• Model: FS-V12
• Type: 1-line expansion unit
• Output: NPN open-collector
• Light Source: Red LED
• Response Time:
• FINE: 250 µs
• TURBO: 500 µs
• SUPER TURBO: 1 ms
• Operation Mode: LIGHT-ON/DARK-ON (switch-selectable)
• Indicator Lamps:
• Display Indicator: Red LED
• Digital LED Monitor: Seven segments, four digits, red LED
• Bar LED Monitor: One orange LED and six green LEDs
• Timer Function:
• ON-delay: 40 ms
• OFF-delay: 10 ms
• Timer OFF: Switch-selectable
• Control Output:
• Type: NPN open-collector
• Maximum Load: 100 mA
• Maximum Voltage: 24 VDC
• Residual Voltage: 1 V max.
• Protection Circuit: Reversed polarity protection, over-current protection, surge absorber
• Unit Expansion: Up to 16 expansion units can be connected (total of 17 units)
• Mutual Interference Suppression:
• FINE: 4 units
• TURBO/SUPER: 8 units
• Power Supply Voltage: 12 to 24 VDC ±10%, Ripple (P-P) 10% or less
• Current Consumption: 50 mA or less
• Environmental Resistance:
• Ambient Light:
• Incandescent Lamp: 10,000 lux max.
• Sunlight: 20,000 lux max.
• Ambient Temperature: -10 to +55°C (No freezing)
• Relative Humidity: 35 to 85% RH (No condensation)
• Vibration Resistance: 10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
• Shock Resistance: 500 m/s², 3 times in each of the X, Y, and Z directions
• Case Material: Polycarbonate
• Weight: Approx. 45 g​