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KJT-FDQ-V21 NPN PNP Photoelectric Sensors Fiber Optic Amplifier

Model: KJT-FDQ-XV21
Light source: red, 4-element light-emitting diode
Response time: P-1:100 µs/P-2:400 µs/P-3:1.6ms/P-4:6.4ms
Power supply voltage: 12 to 24 VDC ±10 %, ripple (P-P) 10 % or less
Current consumption: 40mA max
Detection method: light intensity
  • FDQ-XV21


It is a high-performance optical fiber sensor suitable for detecting small objects and small color differences, and is suitable for installation in small spaces and adverse environments. ◆The optical fiber detection head is small and suitable for installation in small spaces. The optical fiber head can be used in situations with large electromagnetic interference, large temperature differences, large humidity, and explosion-proof requirements. Works reliably in adverse environments. ◆Easy to operate, adjustable sensitivity


model KJT-FDQ-V21(P)
light source Red, 4-element light-emitting diode
Response time P-1:100 µs/P-2:400 µs/P-3:1.6ms/P-4:6.4ms
voltage 12 to 24 VDC ±10 %, ripple (P-P) 10 % or less
Current consumption 40mA max.
Display instructions

Operation indicator: red LED, dual digits Monitor: dual 4-digit display, threshold (4-digit green LED

body indicator) and the current value (4-digit red LED body indicator) light up together. Current value range: 0-9999

Delay function

Off delay timer/on delay timer/single timer/on delay one time timer, selectable.

Meter display in duration selectable: 1ms to 9999ms

Detection method intensity of light
control output NPN/PNP open collector 24V, max. 100mA (main unit only) max. 20mA (when extension unit is connected, residual voltage: 1V)
protection circuit Power supply and output reverse connection protection, output overcurrent and short circuit protection
working environment Incandescent: max. 20,000 lux, daylight: max. 30,000 lux
ambient temperature -10 to +55°C (no freezing)
Relative humidity -35 to 85 % RH (non-condensation)
Vibration resistance 10 to 55 Hz, dual amplitude 1.5 mm, 2 hours each in X, Y, Z directions
Impact resistance The X, Y and Z axis directions are 500m/, 3 times in each direction
Shell material polycarbonate
weight About 80 g

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 Whatsapp: +86 18013047093
 Office Add: 9-101, Shenzhi Huigu, No. 777, Kening Road, Jiangning District, Nanjing City, Jiangsu Province, China
 South east Asia office: 48/14 Ratchadaphisek20, Huaikwang, BKK 10310.

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