The **M2RTS-R-DE-R2** is a specialized industrial signal transducer/transmitter manufactured by **M-System** (now MG CO., LTD). It is part of the M2 series, designed for converting RTD (Resistance Temperature Detector) signals into standard DC process signals. --- ### 1. Key Technical Specifications Below is a breakdown of the electronic characteristics and input/output profiles for this specific model: | Feature | Specification Details | | :--- | :--- | | **Input Signal** | 2-wire or 3-wire RTD (e.g., Pt100, JPt100) | | **Output Signal** | DC Voltage or Current (selectable/factory set) | | **Power Input (DE)** | 24V DC | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Isolation** | 3-way isolation (Input to Output to Power) | | **Construction** | Plug-in base socket mount | | **Accuracy** | ±0.1% of span | --- ### 2. Component Breakdown (Internal Electronics) The device utilizes several critical electronic stages to ensure precision and reliability in harsh industrial environments: * **Front-End Signal Conditioning:** Uses a constant current source to excite the RTD sensor. It measures the voltage drop across the sensor to determine temperature. * **A/D Conversion & Processing:** The analog signal is digitized. This stage includes **Linearization**, which compensates for the non-linear resistance-to-temperature curve characteristic of RTD sensors. * **Galvanic Isolation:** Uses optoisolators or magnetic transformers to separate the input, output, and power circuits. This prevents ground loops and protects the control system from high-voltage surges on the field side. * **Output Stage (D/A Conversion):** Converts the processed digital value back into a highly stable analog DC signal (e.g., 4–20mA or 1–5V). --- ### 3. Part Number Suffix Decoding Understanding the specific electronic configuration via the model code: * **M2RTS:** Model series (RTD Transmitter). * **-R:** Type of RTD input (Standard range/Platinum). * **-DE:** * **D:** Output 1 (Standard DC current or voltage). * **E:** Power Supply (24V DC). * **-R2:** Specific version or housing/mounting revision (Plug-in style). --- ### 4. Wiring Diagram (Electronic Interface) ```mermaid graph LR A[RTD Sensor] -- Resistance --> B(M2RTS Transmitter) C[24V DC Power] --> B B -- 4-20mA / 0-10V --> D[PLC/DCS System] ``` ---