The **KADS-BZ-R** is an electronic component primarily classified as a **Buzzer** (often an Electromagnetic or Piezoelectric indicator) used in industrial control panels and electronic circuitry for audible signaling. --- ### 1. Technical Specifications The "BZ-R" designation usually refers to a **Red (R)** indicator version or a specific **Resonant (R)** frequency type. Below are the typical electronic characteristics: | Parameter | Specification (Typical) | | :--- | :--- | | **Operating Voltage** | 12V DC / 24V DC / 110V AC / 220V AC (Model dependent) | | **Current Consumption** | $\le$ 20mA | | **Sound Pressure Level** | 80dB to 95dB at 10cm | | **Sound Type** | Continuous or Intermittent (Discontinuous) | | **Color Indicator** | Red (LED integrated) | | **Mounting Diameter** | 22mm (Standard industrial size) | --- ### 2. Core Electronic Components The KADS-BZ-R functions through several internal electronic stages: * **Oscillator Circuit:** Converts the incoming DC power into a specific frequency (usually between 2kHz and 4kHz) to drive the sound element. * **Piezoelectric Diaphragm:** A ceramic disc that vibrates physically when an electric field is applied, creating sound waves. * **LED Driver:** A simple current-limiting resistor and LED diode placed in parallel with the buzzer so the device provides a visual "Red" flash along with the audio signal. * **Terminal Blocks:** Screw-type connectors (typically marked X1 and X2) designed for secure industrial wiring. --- ### 3. Application and Usage Because of its 22mm mounting size and rugged build, it is commonly found in the following electronic systems: 1. **Fault Indicators:** Used in PLC (Programmable Logic Controller) outputs to alert operators of a system error. 2. **Process Completion:** Signals the end of a timed cycle in industrial ovens or machinery. 3. **Safety Alarms:** Provides immediate feedback when a physical barrier is breached or an emergency stop is pressed. --- ### 4. Circuit Diagram Representation In an electrical schematic, the KADS-BZ-R is represented as follows: ```mermaid graph LR A[Power Source +] --> B[Switch/Relay] B --> C((KADS-BZ-R)) C --> D[Power Source -] ```