The **M2VT-A1-R2/CE** is a high-performance **slim-line signal conditioner** (isolator) manufactured by **M-System**. It is specifically designed to convert a DC input signal into a standard process signal while providing galvanic isolation. Below is a detailed breakdown of its electronic specifications and characteristics. ### 1. General Specifications | Feature | Details | |:---|:---| | **Model Series** | M2V Series (Slim-Line Signal Conditioners) | | **Function** | DC Voltage/Current Input to DC Output | | **Isolation** | 3-way isolation (Input to Output to Power) | | **Construction** | Plug-in style with base socket | | **Certification** | CE Marking compliant | --- ### 2. Model Code Breakdown (A1-R2/CE) The alphanumeric suffix defines the specific electronic configuration of the unit: * **A1**: Input Signal. Typically represents a **4 – 20 mA DC** input (though this can vary slightly based on specific M-System regional catalogs, 'A' usually denotes current). * **R2**: Power Input. Indicates **110 – 120V AC** power supply. * **CE**: Designates that the unit meets **European Conformity** standards for safety and electromagnetic compatibility. --- ### 3. Key Electronic Components & Performance The device utilizes several critical internal electronic stages: #### A. Input Circuitry The input stage uses a high-precision shunt resistor (for current inputs) and low-drift operational amplifiers. It is designed to handle standard industrial ranges with high linearity. #### B. Isolation Barrier * **Type:** Optical or Magnetic isolation. * **Dielectric Strength:** Typically rated for **2000V AC** for 1 minute. * **Purpose:** Prevents ground loops and protects sensitive control systems (like PLCs) from high-voltage surges on the field side. #### C. Output Stage The output is typically a low-impedance voltage or current source. * **Standard Outputs:** Usually 4-20mA or 1-5V DC. * **Load Resistance:** For 4-20mA, it usually supports up to **550 $\Omega$**. #### D. Performance Metrics | Parameter | Value | |:---|:---| | **Accuracy** | ±0.1% of span | | **Temperature Coefficient** | ±0.015% / °C | | **Response Time** | ≤ 0.5 seconds (0 - 90%) | | **Insulation Resistance** | 100 M$\Omega$ minimum at 500V DC | --- ### 4. Wiring and Installation The unit mounts on a **DIN rail** and uses a multi-pin base socket for easy maintenance without disconnecting wires. ```mermaid graph LR A[Field Sensor] -->|Input| B(M2VT Isolator) B -->|Isolated Output| C[PLC/DCS System] D[120V AC Power] --> B ``` ---