The **OMRON E3S-R622M** is a high-performance, built-in amplifier photoelectric sensor specifically designed for the detection of transparent objects (such as glass or plastic bottles). --- ## 1. Core Technical Specifications The following table highlights the essential electronic and operational parameters of the E3S-R622M: | Parameter | Specification | |:---|:---| | **Sensing Method** | Retro-reflective (with MSR function) | | **Sensing Distance** | 10 mm to 1 m (using E39-R1 reflector) | | **Supply Voltage** | 10 to 30 VDC (including 10% ripple) | | **Current Consumption** | 35 mA maximum | | **Control Output** | NPN/PNP selectable (Open Collector) | | **Response Time** | 1 ms Max. (Operate or Release) | | **Light Source** | Infrared LED (880 nm) | | **Protection Circuit** | Reversed polarity, Output short-circuit | --- ## 2. Key Electronic Features ### A. Transparent Object Detection Unlike standard retro-reflective sensors that may "see through" clear glass, the E3S-R622M utilizes a unique optical system. It is sensitive to the **birefringence** (light refraction) and the attenuation caused by transparent materials, allowing it to detect thin films or clear bottles reliably. ### B. MSR (Mirror Surface Rejection) Function This sensor includes built-in polarizing filters. * **How it works:** The sensor only receives light that has been rotated 90 degrees by the corner-cube reflector. * **Benefit:** It prevents false triggering caused by shiny, mirror-like surfaces on the target object. ### C. Output Configuration The "2M" in the model name typically refers to the **2-meter pre-wired cable**. The internal circuitry allows for flexible integration: * **Switchable Operation:** Users can select between **Light-ON** and **Dark-ON** modes via a switch. * **Dual Output Potential:** High-speed switching (1ms) makes it suitable for fast-moving production lines. --- ## 3. Wiring Diagram (General NPN/PNP) ```mermaid graph LR A[Brown: VCC 10-30VDC] --- B[E3S-R622M] C[Blue: 0V / GND] --- B B --- D[Black: Control Output] B --- E[Pink: Mode Selection L-ON/D-ON] ``` * **Brown:** Positive power supply. * **Blue:** Ground (0V). * **Black:** Output signal (connects to PLC or relay). * **Pink/White:** Control wire for selecting logic state. --- ## 4. Application Environment * **Enclosure Rating:** IP67 (Dust-tight and water-resistant). * **Material:** Metal housing (Zinc die-cast), providing superior mechanical durability compared to plastic alternatives.