The **M2VF2-5WA-R2** is a high-performance **Industrial Signal Conditioner** (transducer) manufactured by **M-System**. It is specifically designed to convert alternating current (AC) input from a potential transformer into two isolated DC output signals. --- ## 1. Core Technical Specifications | Feature | Specification | | :--- | :--- | | **Component Type** | AC Voltage Transmitter (V-Network) | | **Input Signal** | AC Voltage (e.g., 0–110V, 0–220V AC) | | **Output 1** | 4–20 mA DC | | **Output 2** | 1–5 V DC | | **Power Input** | 100–240V AC (indicated by "-R2" or "-M2" variants) | | **Response Time** | ≤ 0.5 seconds (0 to 90%) | | **Accuracy** | ±0.3% of span | | **Isolation** | 3-way isolation (Input to Output to Power) | --- ## 2. Key Electronic Components & Internal Functions The device functions through several electronic stages to ensure safety and precision: ### A. Input Transformation Stage Since the input is high-voltage AC, the device contains a precision step-down transformer or a high-impedance voltage divider. This stage steps the voltage down to a millivolt level that the internal semiconductors can process safely. ### B. Rectification & Filtering The AC signal is converted to DC using a **Full-Wave Rectifier** circuit. It then passes through a smoothing filter (low-pass filter) to remove ripples, ensuring the output represents the "True RMS" or "Mean Average" value of the input. ### C. Galvanic Isolation (The "3-Way" System) To protect sensitive PLCs or SCADA systems from high-voltage surges, the M2VF2 uses: * **Optical Isolators (Optocouplers):** For signal transmission between circuits. * **Internal DC-DC Converter:** To provide isolated power to the input and output stages independently. ### D. Dual Output Driver The "-5WA" designation indicates dual outputs. The internal circuitry splits the processed signal into two independent buffer amplifiers: 1. **Current Loop Driver:** Provides a constant 4-20mA signal, capable of driving long-distance wires. 2. **Voltage Driver:** Provides a 1-5V signal for local monitoring or PLC input. --- ## 3. Physical & Installation Features * **Mounting:** Standard DIN-rail mounting. * **Wiring:** M3.5 screw terminals. * **Status Indication:** Typically features a power LED on the front panel to indicate the internal power supply is active. * **Zero/Span Adjustments:** Accessible potentiometers on the front to calibrate the signal if the sensors drift over time. ---