The **M2VT-31-R/Q** is a high-performance, signal conditioning transducer/transmitter manufactured by **M-System**. It is part of the M2 series, designed to convert a variety of DC input signals into standard DC output signals with galvanic isolation. --- ### 1. Key Technical Specifications | Parameter | Specification | Details | | :--- | :--- | :--- | | **Model Type** | M2VT (Signal Transmitter) | Converts DC input to DC output | | **Input (3)** | 0 – 10V DC | High impedance voltage input | | **Output (1)** | 4 – 20mA DC | Standard current loop output | | **Power Supply (R)** | 24V DC | Operational voltage range | | **Configuration (2)** | /Q | Custom/Special specification code | ### 2. Electronic Architecture The device is composed of several critical electronic stages that ensure signal integrity and safety: * **Input Circuitry:** Features a high-input impedance buffer to prevent loading effects on the source signal. * **Isolation Barrier:** Utilizes a transformer or optoisolator to provide **2000V AC** isolation between input, output, and power supply. This prevents ground loops and protects sensitive equipment from high-voltage surges. * **Signal Processing:** An analog-to-analog conversion circuit that ensures linearity (typically within ±0.1%) and low temperature drift. * **Output Driver:** A constant current source designed to drive loads up to 750Ω (for 4-20mA signals). ### 3. Physical Features & Installation The "M2" series is known for its compact, plug-in socket design. * **Mounting:** Designed for DIN rail mounting using a dedicated base socket. * **Adjustment:** Includes front-accessible **Zero** and **Span** potentiometers (trimmers) for fine-tuning the output signal (typically ±5%). * **Status Indicator:** Features a front-panel power LED to confirm the device is energized. ### 4. Application Use Cases 1. **Ground Loop Elimination:** Breaking electrical paths between a sensor and a PLC to prevent signal noise. 2. **Signal Conversion:** Converting a 0-10V signal from a legacy controller to a 4-20mA signal for long-distance transmission. 3. **Signal Boosting:** Increasing the driving capacity of a weak voltage signal. ---