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Autonics BH4M-PDT Photoelectric Sensor
The Autonics BH4M-PDT Photoelectric Sensor provides a 4m retroreflective sensing range using a red LED with a built-in polarizing filter. It offers a 1ms response time, Light ON/Dark ON operation, NPN/PNP simultaneous output, 12β24VDC power, and a 2.1m cable connection. Manufactured by Autonics and listed under the Autonics brand, this model is included in the Autonics Photoelectric Sensors lineup and belongs to the Autonics BH Series.
| Brand | Autonics |
| Product Type | Photoelectric Sensor |
| Model Number | BH4M-PDT |
Autonics BH4M-PDT Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing type | Retroreflective type(built-in polarizing filter) |
| Sensing distance | 4m(MS-2A) |
| Sensing target | Opaque material of min. Γ75mm |
| Response time | Max. 1ms |
| Light source | Red LED(660nm) |
| Sensitivity adjustment | Sensitivity adjuster |
| Operation mode | Light ON/Dark ON(set by switch) |
| Power supply | 12-24VDC |
| Current consumption | Max. 30mA |
| Control output | NPN, PNP open collector simultaneous output |
| Environment_Ambient illumination | Sunlight: Max. 11,000lx, Incandescent lamp: Max. 3,000lx (received illumination) |
| Environment_Ambient temperature | -25 to 55β, storage: -40 to 70β |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Protection structure | IP67 |
| Connection type | Cable type(Γ4, 2.1m) |
| Material | Case: Polycarbonates, LED indicator: Polycarbonates, Sensing part: Polymethyl methacrylate acrylic |
| Accessories_Common | Adjustment screwdriver, fixing bracket, M18 fixing nut, fixing cap, M3 bolt, M3 nut |
| Accessories_Individual | Reflector(MS-2A) |
| Weight | Approx. 140g(Approx. 60g) |
The Autonics BH4M-PDT Photoelectric Sensor ensures stable detection with a 4m retroreflective range, red LED light source, 1ms response time, and NPN/PNP simultaneous output. This Autonics model belongs to the BH Series and is widely used across industrial automation setups where reliable reflective sensing is essential.
This sensor is suitable for conveyors, packaging equipment, automated sorting systems, and assembly lines requiring consistent retroreflective detection. The built-in polarizing filter enhances detection reliability on reflective targets, while the Light ON/Dark ON switch supports flexible configuration. Its 12β24VDC supply and open-collector outputs enable straightforward integration with various industrial control systems.
The Autonics BH4M-PDT Photoelectric Sensor offers dependable performance with its defined sensing distance, rapid response time, and dual output capability. As a member of the Autonics BH Series, it supports industrial users needing accurate object detection in continuous production environments. This model provides stable, repeatable sensing results suitable for demanding automation tasks.
