The **M2VS-151-R2/Q** is a high-performance, rail-mounted signal isolator and converter manufactured by **M-System**. It is designed to take a DC input signal and provide an isolated DC output, ensuring that ground loops are eliminated and equipment is protected from electrical noise. --- ### ## Technical Specifications | Parameter | Specification Details | | :--- | :--- | | **Model Series** | M2VS (Super-mini Signal Conditioner) | | **Input Signal** | 4 – 20 mA DC | | **Output Signal** | 1 – 5 V DC | | **Power Input (R2)** | 100 – 240V AC (50/60 Hz) | | **Accuracy** | ±0.1% | | **Isolation** | 3-way isolation (Input to Output to Power) | | **Mounting** | DIN Rail Mounting | | **Housing Material** | Flame-resistant resin (Black) | --- ### ### Key Electronic Components & Features 1. **3-Way Isolation**: The device utilizes internal transformers or optoisolators to separate the **input**, **output**, and **power supply** circuits. This prevents the transfer of high voltages or surge currents between stages. 2. **Ultra-Slim Design**: The "Super-mini" series is designed to save space in electrical cabinets, featuring a width of only 29 mm (approx. 1.14 inches). 3. **Zero and Span Adjustments**: The front panel typically includes multi-turn potentiometers. These allow for fine-tuning the electronic calibration to ensure the output voltage (1-5V) perfectly matches the input current (4-20mA). 4. **Response Time**: The electronic circuitry is optimized for a fast response time (typically ≤ 0.5 seconds), making it suitable for real-time industrial monitoring. --- ### ### Connection Diagram Reference | Terminal No. | Function | Description | | :--- | :--- | :--- | | **4 (+)** / **5 (-)** | Input | 4–20 mA DC current signal | | **1 (+)** / **2 (-)** | Output | 1–5 V DC voltage signal | | **L1 / L2** | Power Supply | 100–240V AC Line power | --- ### ### Common Applications * **Ground Loop Elimination**: Prevents measurement errors caused by potential differences between sensors and PLC/DCS. * **Signal Conversion**: Converting a current loop (standard for long-distance transmission) into a voltage signal required by specific high-impedance controllers. * **Safety**: Protecting expensive control room equipment from field-side electrical surges.