The **M2AC-AAZ-R2/CE** is a high-performance, signal conditioning transducer, specifically a **Compact Signal Converter** manufactured by **M-System** (now often branded under MG CO., LTD). This device is primarily used in industrial automation to convert an AC current or voltage input into a standardized DC output signal. --- ### 1. Key Technical Specifications The model code "M2AC-AAZ-R2/CE" breaks down into specific electronic characteristics: | Component | Code Segment | Specification | | :--- | :--- | :--- | | **Model Series** | **M2AC** | AC Transmitter (Input/Output isolation) | | **Input** | **A** | 0 – 1 A AC | | **Output** | **A** | 4 – 20 mA DC | | **Power Input** | **Z** | 100 – 240V AC | | **Option** | **R2** | Dual output or specific terminal type (model dependent) | | **Standard** | **CE** | CE Marking (European Conformity) | --- ### 2. Core Electronic Functions The device operates through several internal electronic stages to ensure accuracy and safety: * **Input Stage (AC Detection):** It uses a precise internal current transformer or shunt to measure the AC input. It is designed to handle "Mean Value Extraction," which means it filters the AC wave to find the average rectified value. * **Isolation (3-Way):** One of its most critical electronic features is **2000V AC isolation**. It electronically separates the **Input**, **Output**, and **Power supply** circuits. This prevents ground loops and protects sensitive PLCs or SCADA systems from high-voltage surges. * **Signal Conversion:** It converts the physical AC induction into a linear 4–20mA DC loop. This allows long-distance transmission of data without significant signal loss due to resistance. * **Zero/Span Adjustment:** The front panel typically includes potentiometers (trimmer resistors) to fine-tune the minimum (zero) and maximum (span) points of the electrical signal. --- ### 3. Application Use Case In an industrial setting, the M2AC-AAZ-R2 is typically wired as follows: ```mermaid graph LR A[AC Motor/Line] -->|0-1A AC| B(M2AC-AAZ-R2) B -->|4-20mA DC| C[PLC / Controller] D[100-240V AC] -->|Power| B ``` ### 4. Technical Summary * **Accuracy:** Typically ±0.3% to ±0.5% of span. * **Response Time:** Approximately 0.5 seconds (to reach 90% of the signal). * **Mounting:** Standard DIN rail mounting for electrical cabinets. * **Housing:** Flame-resistant black resin. ---