The **M2RTS-R-33-M2/CE** is a high-performance **RTD (Resistance Temperature Detector) Transmitter** produced by M-System. It is designed to convert the signal from a temperature sensor (like a Pt100) into a standard analog signal (like 4-20mA or 0-10V) for industrial automation and control. --- ### Technical Specifications Breakdown | Feature | Specification | | :--- | :--- | | **Model Series** | M2RTS (Ultra-slim Signal Conditioner) | | **Input Type** | RTD (Resistance Temperature Detector) | | **Input Channels** | Single Channel | | **Output Type** | DC Voltage or Current (Configurable) | | **Power Input (33)** | 100 – 240V AC | | **Accuracy** | ±0.1% of span | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Housing Material** | Flame-resistant resin (Black) | --- ### Component Breakdown & Suffix Meaning The model code **M2RTS-R-33-M2/CE** breaks down as follows: 1. **M2RTS**: The series identifier. These are "Mini-M" series transmitters known for their compact, plug-in base design. 2. **R**: Represents the Input Type. In this case, it is specifically for **RTD** (typically Pt100, Pt50, etc.). 3. **33**: Defines the Output Signal. Usually represents a specific range (e.g., 4–20 mA DC). 4. **M2**: Specifies the Power Input. "M2" indicates **100 – 240V AC** universal power supply. 5. **CE**: Indicates the unit is **CE Certified**, meeting European safety and EMC standards. --- ### Key Features * **Isolation**: Provides 2000V AC isolation between the input, output, and power terminals. This protects sensitive PLC/DCS equipment from electrical noise or surges. * **Burnout Protection**: If the RTD wire breaks, the transmitter can be configured to drive the output signal "Upscale" (max) or "Downscale" (min) to alert the control system of a sensor failure. * **Compact Design**: The "Mini-M" footprint allows for high-density mounting on DIN rails, saving cabinet space. * **Linearization**: The internal circuitry linearizes the non-linear resistance change of the RTD to ensure the output signal is proportional to the actual temperature. --- ### Internal Circuit Block Diagram (Functional) ```mermaid graph LR A[RTD Input] --> B[Linearization Circuit] B --> C[Isolation Barrier 2000V] C --> D[Amplifier/Converter] D --> E[Analog Output 4-20mA/0-10V] F[100-240V AC Power] --> C ``` ---