The **M2RTS-S-DF-R2** is a specialized industrial signal conditioner/transducer, typically manufactured by companies like **M-System**. This specific model is designed to measure resistance temperature detectors (RTD) and provide a dual-output signal for automation and control systems. ### 1. Key Technical Specifications Below are the primary electronic characteristics and functional parameters: | Parameter | Specification | | :--- | :--- | | **Primary Function** | RTD Transmitter (Signal Conditioner) | | **Input Type** | RTD (e.g., Pt100, Pt1000, JPt100) | | **Output Type** | Dual Output (Current/Voltage) | | **Power Supply** | 100 – 240V AC (Standard "R2" designation) | | **Isolation** | 4-way isolation (Input to Output 1 to Output 2 to Power) | | **Mounting** | DIN Rail Mounting | | **Accuracy** | Approximately ±0.1% of span | --- ### 2. Breakdown of the Model Code The alphanumeric suffix provides specific details about the electronic configuration: * **M2RTS**: Series identifier for a Resistance Temperature Transmitter. * **-S**: Soft-transfer or specific functional curve (often indicates a standard linear output relative to temperature). * **-DF**: Specifies the Output 1 and Output 2 types. * **D**: Output 1 (e.g., 4–20 mA DC). * **F**: Output 2 (e.g., 0–10V DC or 1–5V DC depending on sub-config). * **-R2**: Power Input designation. * **R2** typically indicates a wide-range AC power supply (100–240V AC). --- ### 3. Electronic Features & Components * **A/D and D/A Conversion**: The unit converts the analog resistance change from the RTD into a digital value for processing, then back to high-precision analog signals for the dual outputs. * **Linearization Circuit**: RTD sensors are inherently non-linear. The electronic internal circuitry performs linearization to ensure the output signal is directly proportional to the temperature. * **Burnout Protection**: Features a safety circuit that drives the output to a specific limit (upscale or downscale) if the sensor wire breaks. * **Cold Junction Compensation (CJC)**: While primarily for thermocouples, in RTD transmitters, this unit uses a 3-wire or 4-wire compensation method to eliminate lead-wire resistance errors. --- ### 4. Typical Wiring Configuration ```text [ RTD SENSOR ] ----> [ INPUT TERMINALS ] | [ POWER SUPPLY ] ---> [ L / N TERMINALS ] | +--> [ OUTPUT 1: 4-20mA ] +--> [ OUTPUT 2: 1-5V DC ] ``` ---