The **KMS-D-R/K** is a high-precision digital magnetic switch/sensor, commonly used in industrial automation for position sensing, safety monitoring, and limit detection. It typically belongs to the family of magnetic reed or Hall-effect sensors designed for robust performance in harsh environments. --- ### 1. Technical Specifications Below are the typical electronic characteristics for the KMS-D-R/K series: | Parameter | Specification | | :--- | :--- | | **Switching Voltage** | 5V – 250V AC/DC | | **Switching Current** | Max. 500mA | | **Switching Capacity** | Max. 10W / 10VA | | **Output Type** | Reed Contact (Dry Contact) / Digital NPN/PNP | | **Response Time** | < 0.5 ms | | **Protection Class** | IP67 (Dust and Water Resistant) | | **Operating Temp** | -20°C to +85°C | --- ### 2. Core Electronic Components The device functions through a combination of several internal electronic parts: * **Magnetic Sensing Element:** * **Reed Switch:** A pair of flexible metal reeds in a hermetically sealed glass envelope. In the presence of a magnetic field, the reeds pull together to complete the circuit. * **Hall Effect IC (Optional):** Some variants use a solid-state Hall sensor that detects magnetic flux density and outputs a digital high/low signal. * **Protection Circuitry:** * Contains **Varistors** or **Diodes** to protect against inductive voltage spikes when switching loads like relays or solenoids. * **LED Indicator:** * A small Surface Mount Device (SMD) LED integrated into the housing to provide visual feedback of the switching status (Power/Actuated). * **Encapsulation:** * The internal PCB and components are potted in epoxy resin to prevent vibration damage and moisture ingress. --- ### 3. Wiring Diagram Logic The wiring configuration usually follows standard industrial coding: ```yaml Brown (BN): Positive (+) / Line Blue (BU): Negative (-) / Neutral Black (BK): Output Signal (NO - Normally Open) ``` ### 4. Application Logic The KMS-D-R/K is designed to interface directly with: 1. **PLC Inputs:** Digital signal processing for automated logic. 2. **Safety Relays:** For machine guarding applications. 3. **Counter Modules:** To track movements or rotations of magnetic actuators. ---