Digital Optical Fiber Sensors NPN / PNP Type Cable M8 Connect Method Intelligent
| Attribute | Value |
|---|---|
| Description | Optical Fiber Sensor |
| Mounting Type | Nut fixing |
| Theory | Red LED |
| Output | 12-24V DC |
| Model | NPN/PNP Type |
| Light source | Red light-emitting diode LED tube body |
| Output selection | LIGHT-ON/DARK-ON (switch selection) |
| Power supply | 12-24VDC±10%, Ripple voltage (p-p) Max 10% |
What is a fiber optic sensor? A fiber-optic sensor is a device that uses optical fibers to detect changes in light for measuring physical parameters like temperature, pressure, or strain. These sensors are classified as intrinsic, where the fiber itself senses the change, or extrinsic, where the fiber transmits signals from an external sensing element. Fiber-optic sensors are ideal for remote or harsh environments due to their immunity to electromagnetic interference and ability to operate over long distances. They are widely used in industries such as aerospace, medical, energy, and structural monitoring, offering high sensitivity, compact size, and reliable performance in demanding conditions.
- Four modes for flexible selection (MEGA/SUPER/FINE/HIGH SPEED)
- Automatically sets optimal brightness and threshold for various workpiece surfaces
- Strong stability with high response speed (up to 50 μs)
- Light intensity self-adaptation, optical power self-compensation, zero point migration, and delay functions
| Type | Opening light single-path output |
|---|---|
| Model | NPN: BFH-23N, BFH-23NB PNP: BGH-23P, BGH-23PB |
| Connect method | Cable, M8 |
| Light source | Red light-emitting diode LED tube body |
| Response time | MEGA: 8ms (13ms with anti-light interference) SUPER: 8ms (1.6ms with anti-light interference) FINE: 250μs (400μs with anti-light interference) HSP: 50μs (200μs with anti-light interference) |
| Output selection | LIGHT-ON/DARK-ON (switch selection) |
| Delay function | Disconnection delay timer / Activation delay timer / Single-shot timer |
| Control Output | NPN: NPN open-collector 24V; output Max:100mA; residual voltage:1V or smaller PNP: PNP open-collector 24V; output Max:100mA; residual voltage:1V or smaller |
| Protection circuit | Inverse electrode protection (power supply), over-current protection (output), and over-voltage (output) |
| Power supply | 12-24VDC±10%, Ripple voltage (p-p) Max 10% |
| Power consumption | NPN: Regular: Max 900mW; Energy-saving: Max 800mW PNP: Regular: Max 950mW; Energy-saving: Max 850mW Note: "High-speed" mode increases consumption by 160mW (7mA) |
| Environmental Specifications | Ambient brightness: Incandescent lamp: Max 20000Lux; Max 30000Lux Temperature: -20~+55°C (No freezing) Humidity: -35~+85°C (No condensation) Vibration resistance: 10~55Hz, 1.5mm amplitude, 2 hours per axis Impact resistance: 500m/s², 3 times per axis |
| Physical Specifications | Shell material: PC Size: 30.3mm(H) x 9.8mm(W) x 71.8mm(D) Weight: 50g |



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