Based on the model number provided, the **M2RTS-S-A1-R2** belongs to the **M2RTS series** of ultra-slim, signal conditioners (specifically temperature transmitters) manufactured by **M-System**. Below is a breakdown of its electronic specifications and technical components. --- ## 1. Part Number Breakdown The alphanumeric code describes the specific configuration of the device: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | M2RTS | RTD Transmitter (Ultra-slim design) | | **Mounting** | S | Surface / DIN Rail Mounting | | **Input** | A1 | Pt 100 (JIS '97, IEC 751) | | **Output** | R2 | 4 – 20 mA DC (Current output) | --- ## 2. Key Technical Specifications The M2RTS-S-A1-R2 acts as a bridge between a temperature sensor (RTD) and a PLC or controller, converting a resistance signal into a linear 4-20mA current signal. ### Input Characteristics * **Sensor Type:** Pt 100 (3-wire system). * **Excitation Current:** Typically 0.2 mA to 1.0 mA to prevent self-heating of the sensor. * **Allowable Leadwire Resistance:** Usually up to 20 $\Omega$ per wire. ### Output Characteristics * **Output Signal:** 4 – 20 mA DC. * **Load Resistance:** Up to 550 $\Omega$. * **Linearization:** The device includes internal circuitry to linearize the non-linear resistance curve of the Platinum sensor. ### Power & Isolation * **Power Input:** Usually loop-powered or 24V DC (Check specific wiring label for the R2 variant). * **Isolation:** 3-way isolation (Input to Output to Power). This prevents ground loops and protects sensitive PLC inputs from high-voltage surges. --- ## 3. Physical & Electronic Build The unit is designed for high-density installation in control panels. * **Housing:** Flame-resistant resin (Black). * **Adjustments:** Front-facing **Zero** and **Span** adjustments (multi-turn potentiometers) for fine-tuning the output signal. * **Status Indicator:** Typically features a Power LED to indicate operational status. * **Connection:** M3 screw terminals (torque 0.8 N·m). --- ## 4. Performance Summary | Feature | Specification | | :--- | :--- | | **Accuracy** | ±0.1% of span | | **Temp. Coefficient** | ±0.015% / °C | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Insulation Resistance** | 100 M$\Omega$ at 500V DC | | **Dielectric Strength** | 2000V AC @ 1 minute |