## Overview of E3ZM-R86 The **E3ZM-R86** is a high-performance, compact photoelectric sensor developed by OMRON. It is specifically designed for the food and beverage industry, featuring a stainless steel housing (SUS316L) to withstand harsh cleaning environments and high-pressure washdowns. --- ### Technical Specifications The following table outlines the core electronic and physical characteristics of the device: | Feature | Specification | | :--- | :--- | | **Sensing Method** | Retro-reflective with MSR (Mirror Surface Rejection) function | | **Sensing Distance** | 100 mm to 4 m (with E39-R1S reflector) | | **Output Configuration** | PNP Open Collector | | **Operating Voltage** | 10 to 30 VDC (including 10% ripple) | | **Current Consumption** | 30 mA maximum | | **Control Output** | 100 mA max at 30 VDC | | **Response Time** | Operate or reset: 1 ms max | | **Connection Type** | M8 Connector (4-pin) | | **Protection Circuitry** | Power supply reverse polarity, Output short-circuit, Mutual interference prevention | --- ### Key Electronic Components & Functions #### 1. Light Source (Emitter) The device uses a **Point-source Visible Red LED**. The visible beam makes alignment easier during installation, and the point-source nature allows for precise detection of small objects. #### 2. PNP Open Collector Output As a PNP-type sensor, the output terminal connects the load to the positive side of the power supply when the sensor is triggered. * **Light-ON / Dark-ON:** Selectable via wiring or a switch (depending on the specific sub-model configuration). #### 3. MSR (Mirror Surface Rejection) This internal electronic function allows the sensor to distinguish between the light reflected from the dedicated reflector and the light reflected from a shiny (mirror-like) object. This prevents false triggers when sensing metallic or glossy targets. #### 4. Protection and Durability * **IP69K Rating:** The electronics are hermetically sealed to prevent water ingress during high-pressure and high-temperature steam cleaning. * **Detergent Resistance:** The housing and optical cover are resistant to common alkaline and acidic cleaning agents. --- ### Connection Diagram (M8 Connector) Below is the standard pinout for the M8 4-pin connector used by the E3ZM-R86: ```text Pin 1: +V (10 to 30 VDC) Pin 2: L/D Control (Light-ON/Dark-ON selection) Pin 3: 0V (GND) Pin 4: Output (PNP) ``` ---