The **M2RTS-S-DA-R/CE** is a high-precision, programmable signal transducer/transmitter manufactured by **M-System** (now part of MG CO., LTD). This specific model is part of the M2 Series and is designed to convert temperature signals from a Resistance Temperature Detector (RTD) into a standard DC output. --- ### ## Technical Specifications Breakdown The alphanumeric code represents specific hardware configurations. Below is the breakdown of the electronic components and capabilities: | Code Segment | Feature | Description | | :--- | :--- | :--- | | **M2RTS** | Model Series | RTD Transmitter (PC Programmable) | | **S** | Configuration | Standard type (Single Output) | | **DA** | Input Type | RTD (Pt 100, Pt 1000, Ni 508.4Ω, etc.) | | **R** | Power Supply | 24V DC | | **CE** | Certification | CE Marking (European Conformity) | --- ### ### Key Electronic Components & Functionality #### 1. Input Section (Analog-to-Digital) * **Sensor Support:** It typically interfaces with 3-wire or 4-wire RTDs (Pt 100). * **A/D Converter:** High-resolution circuitry converts the analog resistance change into a digital signal for processing. * **Burnout Protection:** Includes electronic logic to detect a broken wire in the RTD, forcing the output to a safe state (Upscale or Downscale). #### 2. Processing Unit * **Microprocessor:** Manages linearization. Since RTD resistance is not perfectly linear with temperature, the internal logic applies a mathematical curve to ensure high accuracy. * **PC Programmable:** The "S" designation often implies that the range and RTD type can be configured via a PC interface (using M-System's configurator software). #### 3. Output & Isolation * **D/A Converter:** Converts the processed digital values back into an analog current or voltage signal. * **Galvanic Isolation:** This is a critical electronic feature. The device provides 3-way isolation (Input to Output to Power). * **Isolation Resistance:** Typically 100 MΩ or more. * **Dielectric Strength:** Usually rated for 2000V AC for 1 minute. --- ### ### Connection Diagram (Typical) ```text Power Supply: 24V DC (Terminal 4- & 5+) Input: RTD Terminals (1, 2, 3) Output: DC Signal (6+ & 7-) ``` ### ### Electronic Advantages * **Cold Junction Compensation:** While primarily for Thermocouples, the M2RTS focuses on **Leadwire Resistance Compensation** to ensure that the length of the wire between the sensor and the part does not affect the temperature reading. * **Low Power Consumption:** Optimized for industrial cabinets, typically consuming less than 3W. ---