Description
Infrared retro reflective photoelectric sensor for sale, using invisible infrared light for precise detection up to 4 meters, supporting distance adjustment, and operating on 10–30V wide voltage. With high accuracy, strong anti-interference, and durable pure copper wiring, the photo sensor ensures stable performance in demanding environments.
Specification
| Model | ATO-FQL-504MNO | ATO-FQL-504MNC | ATO-FQL-504MPO | ATO-FQL-504MPC |
| Output Type | NPN | NPN | PNP | PNP |
| DC Type | NO | NC | NO | NC |
| Sensing Distance | Normally Open 4 m (Adjustable) | Normally Closed 4 m (Adjustable) | Normally Open 4 m (Adjustable) | Normally Closed 4 m (Adjustable) |
| Housing Dimensions | 50 × 50 × 18 mm | |||
| Reflector Dimensions | 61 × 50 × 7.5 mm | |||
| Sensing Principle | Retro-reflective (with reflector) | |||
| Minimum Detectable Object | 20 × 20 cm white cardboard | |||
| Supply Voltage | 10-30 VDC | |||
| Max. Output Current | 200 mA | |||
| No-load Current | ≤ 30 mA | |||
| Voltage Drop | ≤ 2.5 V | |||
| Response Time | < 5 ms | |||
| Light Source | Infrared (880 nm) | |||
| Ambient Light Immunity | ≤ 10,000 Lux | |||
| Housing Material | ABS Plastic | |||
| Ingress Protection (IP) | IP55 | |||
| Operating Temperature | 0~55 °C | |||
| Short-Circuit Protection | Yes | |||
| Reverse Polarity Protection | Yes | |||
| Switch Hysteresis | < 15% | |||
| Ripple | ≤ 10% | |||
| Standard Cable Length | 2 m | |||
| Weight | 93g |
Feature
- Detection and Adjustment: Uses invisible infrared light with a 4-meter sensing range; the detection distance can be adjusted — clockwise to extend and counterclockwise to shorten, suitable for various applications.
- Short-Circuit Protection: The photo sensor protects both itself and the load when a short circuit or fault occurs.
- Overload Protection: Automatically activates when unstable loads cause excessive current, ensuring safe operation.
- Reverse Polarity Protection: Prevents damage even if the power wires are connected in reverse.
- Wide Voltage Range: Operates stably within DC10–30V, providing long-term reliability.
- High-Power Modules: The infrared retro reflective photo sensor features strong transmitting and receiving modules for better resistance to signal attenuation.
- Voltage Stabilization: The built-in voltage stabilizing module ensures consistent internal voltage and stable performance.
- Smart Chip: The infrared infrared retro reflective photo electric sensor includes a fast-response chip with high processing speed and precision.
- High-Temperature Resistance: Works continuously from 0°C to 55°C with excellent accuracy and stability.
- Durable Wiring: The infrared infrared retro reflective photoeye sensor uses pure copper wire cores with matte, wear-resistant insulation, offering great conductivity, flexibility, and resistance to water, oil, and bending.
Detail
Size (unit: mm)
Application
Tips: How to install the infrared retro reflective photoelectric sensor?
- Mount the infrared retro reflective photoelectric sensor securely using screws or a mounting bracket, ensuring that the sensing surface faces the reflector directly. Keep the alignment between the emitter, the reflector, and the sensing target precise for stable performance.
- Avoid installing the infrared retro reflective photo sensor too close to shiny or highly reflective surfaces that could cause false triggering.
- If background reflection cannot be avoided, tilt the sensor slightly (about 5–10°) to minimize unwanted reflection.
- Keep the optical lens clean and free from dust or oil buildup. Route the cable properly to prevent damage and interference from high-voltage equipment.
These steps will ensure your infrared retro reflective photo electric sensor maintains long-term stability and high detection accuracy.





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