The **M2RT-0A-R/CE** is a high-performance **Signal Conditioner** (specifically an Isolator) manufactured by **M-System**. It is part of the Mini-M series, designed to isolate and convert DC input signals into standard DC output signals. --- ### 1. Key Technical Specifications The model number breakdown provides specific details about its electronic characteristics: | Component | Code | Description | | :--- | :--- | :--- | | **Model** | M2RT | Two-wire Transmitter (Isolator) | | **Input Signal** | 0 | 4 to 20 mA DC | | **Output Signal** | A | 4 to 20 mA DC | | **Power Supply** | R | 24V DC | | **Standards** | CE | Conformité Européenne (CE Marking) | --- ### 2. Electronic Components & Functionality This device functions as a **Galvanic Isolator**. Its primary electronic purpose is to break the electrical path between the input source and the output receiver to prevent ground loops. #### A. Input Stage * **Current Sensing:** The device accepts a standard industrial 4-20mA current loop. * **Protection:** Includes surge protection and polarity protection to prevent damage from incorrect wiring. #### B. Isolation Barrier * **Transformer Isolation:** It uses high-frequency transformer coupling to transfer the signal across an isolation barrier. * **Dielectric Strength:** Usually provides 2000V AC isolation for 1 minute between the input, output, and power terminals. #### C. Output & Filtering * **Signal Processing:** The internal circuitry ensures high linearity (typically ±0.1%) and low temperature drift. * **Response Time:** Optimized for fast reaction (typically ≤ 0.5 seconds for 0–90% response). --- ### 3. Physical & Installation Features * **Construction:** Housed in a flame-resistant black resin case. * **Mounting:** Designed for DIN rail mounting (35mm). * **Connection:** Utilizes M3 screw terminals for secure industrial wiring. * **Status Indicator:** Typically features a power LED to indicate the operational status of the 24V DC supply. --- ### 4. Summary Table | Feature | Specification | | :--- | :--- | | **Input Impedance** | Approx. 250 Ω | | **Load Resistance** | 600 Ω maximum | | **Isolation** | Input to output to power | | **Accuracy** | ±0.1% of span | | **Operating Temp** | -5 to +55°C |