The **M2VS-D2-R2/N** is a high-performance **Mini-M series signal conditioner** (isolator) manufactured by **M-System**. Its primary function is to convert a DC input signal into a standard DC output signal while providing galvanic isolation between the input, output, and power supply. --- ### ## Technical Specifications Breakdown The model number "M2VS-D2-R2/N" follows a specific configuration code. Here is the electronic breakdown of each part of the suffix: | Code Segment | Component Parameter | Description | | :--- | :--- | :--- | | **M2VS** | **Model Series** | Mini-M Isolator (Voltage/Current input) | | **D** | **Input Signal** | 0 – 20 mA DC (Input resistance approx. 50 $\Omega$) | | **2** | **Output Signal** | 0 – 5 V DC (Load resistance 5000 $\Omega$ minimum) | | **R2** | **Power Input** | 110V – 240V AC (Operating range 85 – 264V AC) | | **N** | **Special Option** | Compliant with CE marking / No specific coating | --- ### ### Key Electronic Features 1. **Isolation Barrier:** The device provides 3-way isolation (Input to Output to Power). This is crucial for protecting PLCs or SCADA systems from ground loops and high-voltage surges. 2. **Accuracy & Linearity:** * **Accuracy:** ±0.1% of span. * **Temperature Coefficient:** ±0.015%/°C (±0.008%/°F). 3. **Response Time:** Typically ≤ 0.5 seconds (0 – 90%). 4. **Zero and Span Adjustment:** The front panel contains multi-turn potentiometers (trimmers) allowing for ±5% adjustment of both the Zero point and the Span. --- ### ### Internal Circuit Architecture The electronic internal structure typically follows this path: 1. **Input Stage:** A precision shunt resistor converts the current signal into a voltage. 2. **Modulator/Isolator:** The signal is converted into a high-frequency pulse or optical signal to pass through the isolation transformer/optocoupler. 3. **Demodulator/Output Stage:** The isolated signal is filtered and amplified to the 0-5V DC range. 4. **Power Supply:** A switching regulator converts the AC mains input into stabilized DC rails for internal components. --- ### ### Dimensions and Mounting * **Construction:** Small-sized plug-in structure. * **Connection:** M3.5 screw terminals (nickel-plated steel). * **Housing Material:** Flame-resistant resin (black).