The **M2RTS-R-2G-R** is a specific model within the **M2RTS series**, which are high-performance, modular remote terminal units (RTUs) or signal conditioners typically used in industrial automation and process control. This specific part number refers to a **dual-output electronic signal conditioner**. ### 1. Technical Specifications Breakdown The alphanumeric code describes the internal electronic configuration of the module: | Component Code | Description | Function | | :--- | :--- | :--- | | **M2RTS** | Series Name | RTD Transmitter (Resistance Temperature Detector) | | **-R** | Input Type | RTD Input (Standard Pt 100, 1000, etc.) | | **-2** | Output 1 | DC Current/Voltage (Often 4-20mA or 1-5V) | | **G** | Output 2 | Secondary output (Usually a 4-20mA current loop) | | **-R** | Power Supply | DC Power (typically 24V DC) | --- ### 2. Key Electronic Components & Functions The internal circuitry of the M2RTS-R-2G-R is designed for high precision and signal isolation. #### A. Input Conditioning Circuit * **A/D Converter:** Converts the analog resistance from the RTD sensor into a digital signal for processing. * **Linearization:** Since RTD curves are not perfectly linear, the internal microprocessor applies a mathematical correction to ensure the output is proportional to the temperature. * **Burnout Protection:** A circuit that detects if the sensor wire is broken. It forces the output to a safe high (upscale) or low (downscale) limit. #### B. Isolation Barrier * **Three-Way Isolation:** The electronics are designed to isolate **Input**, **Output**, and **Power** from each other. * **Purpose:** This prevents ground loops and protects sensitive PLC/DCS equipment from high-voltage surges in the field. #### C. Dual Output Stage * **Signal Splitting:** The unit contains two independent output drivers. * **Independence:** Output 1 can go to a local display, while Output 2 goes to a control system. If one loop fails, the other remains operational. --- ### 3. Connection Diagram (General Layout) Below is a representation of how the electronic terminals are typically assigned: ```mermaid graph LR A[RTD Sensor] --> B(Input Terminals) subgraph M2RTS Unit B --> C{Isolation & CPU} C --> D[Output 1: 4-20mA] C --> E[Output 2: 4-20mA] end F[24V DC Power] --> C ``` --- ### 4. Summary of Electronic Features * **Accuracy:** Typically ±0.1% of span. * **Response Time:** Usually $\le$ 0.5 seconds for 0% to 90% change. * **Mounting:** Designed for DIN rail mounting with plug-in socket bases for easy electronic maintenance without disturbing the wiring.