### Overview of M2VF-4W4W-R The **M2VF-4W4W-R** is a high-performance **Signal Conditioner** (specifically a Signal Isolator) manufactured by **M-System**. It is designed to convert and isolate DC input signals into two independent DC output signals. --- ### Technical Specifications The model code follows a specific nomenclature that defines its electronic characteristics: | Component Code | Description | Specifications | | :--- | :--- | :--- | | **M2VF** | Model Series | Ultra-slim Signal Conditioner (V-Unit series) | | **4W** | Input Signal | 4 to 20 mA DC | | **4W** | Output 1 & 2 | 4 to 20 mA DC (Dual independent outputs) | | **R** | Power Input | 24V DC | ### Key Electronic Features 1. **Isolation (3-Port Isolation):** The device provides complete galvanic isolation between the **input**, **output**, and **power supply**. This prevents ground loops and protects sensitive PLC/DCS inputs from electrical surges. 2. **Dual Output (Splitter Function):** It takes a single 4-20mA loop and provides two identical, isolated 4-20mA signals. This is commonly used to send one signal to a local display and the other to a central control system. 3. **High Accuracy:** * **Accuracy:** ±0.1% of span. * **Temperature Coefficient:** ±0.015%/°C (±0.008%/°F). 4. **Response Time:** Typically ≤ 0.5 seconds (0 to 90%). --- ### Internal Circuitry and Wiring The unit utilizes a transformer-based isolation method. Below is a simplified representation of the wiring terminal assignments: #### Terminal Connection Table | Terminal No. | Function | Signal Type | | :--- | :--- | :--- | | **1** | Output 1 (+) | 4-20mA DC | | **2** | Output 1 (-) | 4-20mA DC | | **3** | Output 2 (+) | 4-20mA DC | | **4** | Output 2 (-) | 4-20mA DC | | **5** | Input (+) | 4-20mA DC | | **6** | Input (-) | 4-20mA DC | | **7** | Power (+) | 24V DC | | **8** | Power (-) | 0V DC | --- ### Operational Diagram ```mermaid graph LR A[4-20mA Input] --> B{Isolation Barrier} B --> C[Output 1: 4-20mA] B --> D[Output 2: 4-20mA] E[24V DC Power] --> B ``` ---