The **M2VF-4W4W-R/N** is a high-performance, ultra-slim signal conditioner (transducer) manufactured by **M-System**. It is specifically designed to accept a DC input signal and provide two independent, isolated DC output signals. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Model Series** | M2VF (Ultra-slim Signal Conditioner) | | **Input Signal** | 4 – 20 mA DC | | **Output 1** | 4 – 20 mA DC | | **Output 2** | 4 – 20 mA DC | | **Power Input** | 24V DC (R) | | **Operating Temp** | -5 to +55°C | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Accuracy** | ±0.1% of span | --- ### 2. Breakdown of the Model Suffix (4W4W-R/N) * **4W (Input):** Indicates a 4 – 20 mA DC input. * **4W (Output 1):** Indicates a 4 – 20 mA DC output. * **4W (Output 2):** Indicates a second, independent 4 – 20 mA DC output. * **R (Power):** Specifies the power supply requirement as **24V DC**. * **N (Standard):** Indicates standard options/no special coating. --- ### 3. Functional Electronic Components The device operates using three primary internal stages to ensure signal integrity: 1. **Input Conditioning Stage:** Uses a precision shunt resistor to convert the current signal into a voltage, followed by a low-drift operational amplifier to stabilize the signal. 2. **Isolation Barrier:** Employs **optical or magnetic isolation** (up to 2000V AC) between the input, output 1, output 2, and the power supply. This prevents ground loops and protects sensitive equipment like PLCs. 3. **Dual Output Driver Stage:** Features two independent constant-current circuits. Because these are isolated from each other, a failure or short circuit on "Output 1" will not affect the signal on "Output 2." --- ### 4. Wiring Diagram Representation Below is a simplified representation of the terminal connections: ```text [Power Supply] Terminal 7: +24V DC Terminal 8: 0V (GND) [Input Signal] Terminal 5: Input (+) Terminal 6: Input (-) [Output 1] Terminal 1: Output 1 (+) Terminal 2: Output 1 (-) [Output 2] Terminal 3: Output 2 (+) Terminal 4: Output 2 (-) ``` --- ### 5. Application Use Case This part is commonly used when one sensor (e.g., a pressure transmitter) needs to send data to two different locations simultaneously, such as a local digital display and a remote SCADA system, without the signals interfering with one another.