The **M2VT-CD-R2/N** is a specific model within the **M2VT Series** of Signal Conditioners (Transmitters) manufactured by **M-System** (now MG CO., LTD). This device is a high-speed, compact, plug-in signal conditioner designed to convert a DC input into two isolated DC outputs. --- ### 1. Key Technical Specifications Below are the primary electronic characteristics based on the model code breakdown: | Specification | Details | | :--- | :--- | | **Model Function** | V-Unit Signal Conditioner (Isolator) | | **Input Signal** | DC (Configurable, e.g., 4–20mA, 0–10V) | | **Output 1** | 4 – 20 mA DC (Load resistance 600 $\Omega$ max.) | | **Output 2** | 1 – 5 V DC (Load resistance 5000 $\Omega$ min.) | | **Power Input (R2)** | 11 – 27 V DC | | **Standard (/N)** | No CE marking (Standard Japanese/Global industrial spec) | | **Response Time** | $\leq$ 25 msec (0 – 90%) | --- ### 2. Internal Electronic Structure The device operates using a specific internal architecture to ensure signal integrity and safety: * **Isolation Circuitry:** The "3-port isolation" design electronically separates the **Input**, **Output**, and **Power** circuits. This prevents ground loops and protects sensitive equipment from high-voltage surges (Isolation resistance $\geq$ 100 M$\Omega$). * **Zero/Span Adjustment:** Located on the front panel, these potentiometers allow for fine-tuning the calibration of the electronic output without removing the device from its base. * **Signal Transformation:** It utilizes an internal Op-Amp based circuit to linearize and scale the input signal into the dual output formats. --- ### 3. Connection Diagram (General) The unit uses a plug-in socket (typically 11-pin) for wiring. ```mermaid graph LR A[Field Sensor] -->|Input| B(M2VT-CD) B -->|Output 1| C[PLC / Controller] B -->|Output 2| D[Local Display / Recorder] E[24V DC Source] -->|Power| B ``` ### 4. Application Use Case This part is commonly used when a single sensor signal (like a pressure transducer) needs to be sent to two different locations (e.g., a **DCS system** for control and a **paperless recorder** for data logging) while ensuring that electrical noise from one does not affect the other. ---