The **M2MS-4W-R2/K** is a specialized precision potentiometer (or magnetic rotary sensor) typically manufactured by companies like **Midori Precisions**. It is designed for high-reliability position sensing in industrial and medical applications. --- ### 1. General Specifications This component is part of a series known for non-contact or high-durability sensing. Below is a breakdown of its technical profile: | Feature | Specification Details | | :--- | :--- | | **Technology** | Magnetic (Hall Effect) or Conductive Plastic | | **Mechanical Travel** | 360° (Continuous rotation) | | **Output Type** | 4-Wire Configuration (Ratio-metric or Voltage) | | **Housing Material** | Aluminum or High-grade Plastic | | **Mounting** | Servo Mount or Bushing Mount (depending on suffix) | --- ### 2. Breakdown of the Model Name While specific manufacturer codes vary slightly, the nomenclature generally breaks down as follows: * **M2MS**: The series designation (often indicating a compact, multi-turn or high-precision magnetic sensor). * **4W**: Indicates a **4-Wire** electrical connection. This usually provides separate lines for Power (Vcc), Ground (GND), and differential or dual-signal outputs for redundancy. * **R2**: Refers to the **Resistance** or **Resolution** characteristic. In many Midori models, this indicates a specific output slope or linearity adjustment. * **K**: Typically represents the **Resistance Tolerance** (e.g., ±10%) or a specific mechanical shaft tolerance. --- ### 3. Electrical Characteristics The device is engineered to convert mechanical rotation into a precise electrical signal. * **Supply Voltage:** Usually operates on 5V DC (Ratio-metric). * **Linearity:** High precision, often with an independent linearity of ±0.5% to ±2%. * **Life Cycle:** Because many versions of the M2MS series are non-contact (magnetic), they offer a virtually infinite mechanical life (up to 50-100 million cycles) compared to traditional wire-wound potentiometers. --- ### 4. Typical Applications Due to its robust build and 4-wire accuracy, it is commonly found in: 1. **Medical Equipment:** Precision control in surgical robots or imaging beds. 2. **Industrial Automation:** Valve position feedback and actuator control. 3. **Aerospace:** Control surface feedback where dual-output (redundancy) is required. --- ### 5. Wiring Diagram (Generic 4-Wire) ```yaml Wire 1: +Vcc (Input Voltage) Wire 2: Output Signal (A) Wire 3: Ground (GND) Wire 4: Reference / Output Signal (B) or Shield ``` ---