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E3JK-R4M Retro-Reflective Photoelectric Sensor
Designed for non-contact object detection using a reflector installed opposite the sensor. The emitter and receiver are integrated in one housing. Objects are detected by interrupting the returning beam. This arrangement simplifies electrical wiring because only the sensor requires a cable connection. A rear-mounted sensitivity adjuster supports setup for counting and presence detection.
Technical Parameters
| TECHNICAL PARAMETERS | ||||
| Product Model | E3JK-R4M | |||
| Output | NPN | NO | E3JK-R4MNO | |
| NC | E3JK-R4MNC | |||
| PNP | NO | E3JK-R4MPO | ||
| NC | E3JK-R4MPC | |||
| Sensing Method | Retro-Reflective | |||
| Output Type | NPN/PNP | |||
| Parameter Table Model | E3JK-R4M1 | |||
| Maximum Sensing Distance | 4 m | |||
| Sensing Range | 10–400 cm | |||
| Insulation Resistance | 20 MΩ maximum | |||
| Current Consumption | 40 mA maximum | |||
| Power Supply Voltage | 12–240 V direct current / 90–250 V alternating current / 12–24 V direct current | |||
| Light Source (Wavelength) | Infrared emission (950) | |||
| Sensitivity Adjustment | Rear-mounted adjuster | |||
| Ambient Temperature Range | Operating: -15 to 70°; Storage: -25 to 70° | |||
| Ambient Humidity Range | Operating: 35% to 80%; Storage: 35% to 95% | |||
| Ambient Illumination | Incandescent lamp: 3000 lux maximum; sunlight: 3000 lux maximum | |||
| Output Function | NO + NC | |||
| Output Current | 3 A | |||
| Response Time | 2 ms maximum | |||
| Wire Functions | Five-wire: brown: positive; blue: negative; black: NO; grey: NC; white: common | |||
| Standard Sensing Object | Objects not fully transparent, 3 mm or larger (e.g., colorless glass) | |||
Dimension
