The **M2RTS-R-43-R/Q** (often referenced as part of the M2RTS series) is a specialized electronic component typically used in industrial automation, specifically within the **M-System** (now MG CO., LTD) line of signal conditioners and transmitters. This part is generally a **Resistance Thermometer (RTD) Transmitter**. It converts signals from a resistance temperature detector into a standardized analog output (e.g., 4-20mA or 0-10V). --- ### 1. Part Number Breakdown (Specifications) While exact suffixes can vary by region, here is the standard technical breakdown for this series: | Code Component | Description | Details | | :--- | :--- | :--- | | **M2RTS** | Series Name | Ultra-slim Signal Conditioner (M2 Series) | | **R** | Configuration | Resistance Thermometer (RTD) Input | | **4** | Input Type | Pt 100 (ITS-90) | | **3** | Output Type | 0 – 1V DC | | **R** | Power Input | 24V DC | | **LASHQ** | Special Suffix | High-accuracy or specific calibration requirements | --- ### 2. Key Electronic Features The M2RTS-R functions as a high-precision bridge and amplifier circuit. Its internal electronic architecture focuses on: * **Linearization:** RTDs do not have a perfectly linear resistance-to-temperature relationship. The internal circuitry applies a linearization curve to ensure the output is proportional to the temperature. * **Burnout Protection:** If the RTD wire breaks (open circuit), the transmitter is designed to drive the output to a specific "safety" level (either upscale or downscale). * **Isolation:** The device provides 3-way isolation (Input to Output to Power). This prevents ground loops and protects sensitive PLC/DCS inputs from high-voltage surges in the field. * **Response Time:** Typically features a fast response time (≤ 0.5 seconds) to ensure real-time temperature monitoring. --- ### 3. Technical Specifications Table | Parameter | Specification | | :--- | :--- | | **Input Signal** | Pt 100 (3-wire system) | | **Excitation Current** | Approximately 0.2 mA | | **Accuracy** | ±0.1% of span | | **Temperature Coefficient** | ±0.015% / °C | | **Insulation Resistance** | 100 MΩ minimum at 500V DC | | **Dielectric Strength** | 2000V AC @ 1 minute (Input to Output to Power) | | **Mounting** | DIN Rail (35mm) | --- ### 4. Circuit Connection Diagram (Simplified) ```text Field Side (RTD) Transmitter (M2RTS) Control Side (PLC) [ A ] ------------------- (1) Input + (4) Output + ---------- [ (+) ] [ B ] ------------------- (2) Input - (5) Output - ---------- [ (-) ] [ B'] ------------------- (3) Common (6) Power + (24V) (7) Power - (0V) ``` ---