The **M2VS-D2-R2/CE** is a high-performance, ultra-slim signal conditioner (isolator) manufactured by **M-System**. It is designed to take a DC input signal and convert it into two isolated DC output signals. --- ### 1. Key Technical Specifications | Parameter | Specification Details | | :--- | :--- | | **Model Series** | M2V (Mini-M Series) | | **Input Signal (D2)** | 0 – 10V DC | | **Output 1 & 2 (R2)** | 4 – 20mA DC | | **Power Input (R)** | 24V DC | | **Isolation** | 3-way isolation (input to output to power) | | **Accuracy** | ±0.1% | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Certification** | CE Marking | --- ### 2. Electronic Component Breakdown The device functions through several internal electronic stages to ensure signal integrity and safety: #### A. Input Stage (Signal Conditioning) * **Voltage Divider/Buffer:** The 0–10V DC input is received through a high-impedance buffer to prevent loading the source sensor. * **Filtering:** Low-pass filters are used to eliminate high-frequency noise from the input line. #### B. Isolation Barrier (Galvanic Isolation) * **Transformer/Optical Coupling:** To achieve 2000V AC isolation, the signal is converted into a high-frequency pulse or digital signal, passed across a transformer or opto-coupler, and then reconstructed. This prevents ground loops and protects sensitive PLC/DCS equipment from surges. #### C. Output Stage (Current Drivers) * **V/I Conversion:** The internal electronics convert the isolated voltage back into a precise 4–20mA current loop. * **Dual Output Driver:** The "2" in the suffix indicates it drives two independent 4–20mA signals simultaneously from one input. #### D. Power Supply Module * **DC/DC Converter:** Since the unit runs on 24V DC, an internal switching regulator provides regulated, isolated voltages to the input and output circuitry. --- ### 3. Connection Diagram (Simplified) ```text Power Supply (24V DC) ----> [ Pins 7(+) & 8(-) ] Input (0-10V DC) ----> [ Pins 5(+) & 6(-) ] Output 1 (4-20mA) ----> [ Pins 1(+) & 2(-) ] Output 2 (4-20mA) ----> [ Pins 3(+) & 4(-) ] ``` --- ### 4. Applications * **Signal Splitting:** Sending one sensor signal to both a local display and a remote PLC. * **Ground Loop Elimination:** Preventing measurement errors caused by potential differences between field instruments and the control room. * **Signal Conversion:** Adapting a 0-10V sensor to standard 4-20mA control loops.