The **M2VF2-4W2-R/X1** is a high-performance, signal-conditioning transducer manufactured by **M-System** (now MG CO., LTD). It belongs to the M2-UNIT series and is specifically designed to convert a DC input signal into two isolated DC output signals. --- ### 1. Key Technical Specifications | Parameter | Specification Details | | :--- | :--- | | **Model Series** | M2VF2 (Voltage/Current Isolator / Signal Splitter) | | **Power Input** | 24V DC (Indicated by the "R" suffix) | | **Output Type** | Dual (Two-way) Output | | **Response Time** | Approx. 25 ms (0 – 90%) | | **Isolation** | 2000V AC @ 1 minute (Input to output 1 to output 2 to power to ground) | | **Accuracy** | ±0.1% of span | | **Mounting** | Surface or DIN rail mounting | --- ### 2. Breakdown of the Model Suffix (M2VF2-4W2-R/X1) The alphanumeric code represents the specific configuration of the electronic components inside: * **M2VF2**: The base model for a signal splitter (1 input, 2 outputs). * **4W**: **Input Signal.** Typically represents a 4 to 20 mA DC range. * **2**: **Output Signal.** Typically represents a 1 to 5 V DC range (High impedance). * **R**: **Power Supply.** Indicates 24 V DC. * **X1**: **Special Option.** Usually refers to a specific custom calibration or a coating/environmental protection option (e.g., polyurethane coating for moisture protection). --- ### 3. Core Electronic Functionality The device operates using several internal stages to ensure signal integrity: 1. **Input Conditioning:** The DC input (current or voltage) passes through a precision shunt or operational amplifier stage to scale the signal. 2. **Galvanic Isolation:** The "X1" variant utilizes optical or transformer-based isolation. This prevents ground loops and protects sensitive PLC/DCS inputs from high-voltage surges in the field. 3. **Signal Splitting:** The internal circuitry replicates the input signal into two independent output channels. Because they are isolated, a failure in Output 1 will not affect Output 2. 4. **Power Regulation:** The "R" (24V) power stage uses internal filtering to ensure that fluctuations in the DC supply do not translate into noise in the output signal. --- ### 4. Connection Terminal Diagram (General) | Terminal No. | Function | Description | | :--- | :--- | :--- | | **1 - 2** | Output 1 | Primary Signal (+ / -) | | **3 - 4** | Output 2 | Secondary Signal (+ / -) | | **5 - 6** | Input | Field Signal (+ / -) | | **7 - 8** | Power | 24V DC Supply | ---