The **M2RTS-R-CC-R2** is a specific model of an **RTD Transmitter** (Resistance Temperature Detector) belonging to the M2 Series by **M-System** (now part of MG CO., LTD). It is an ultra-slim, signal-conditioning component designed to convert signals from an RTD sensor into a standard analog output. --- ### ## Technical Specifications The part number breakdown identifies the core electronic characteristics of the unit: | Component Code | Specification Details | | :--- | :--- | | **M2RTS** | Model: RTD Transmitter (converts RTD input to DC output) | | **-R** | Input Type: RTD (typically Pt 100 or JPt 100) | | **-CC** | Output Type: 4 to 20 mA DC (Current) for both Output 1 and Output 2 | | **-R2** | Power Input: 24V DC | --- ### ### Core Electronic Functions The device operates through several internal stages to ensure signal integrity: 1. **Input Conditioning:** It applies a constant current to the RTD sensor. It measures the resistance change caused by temperature fluctuations and uses a 3-wire compensation circuit to eliminate errors caused by lead-wire resistance. 2. **Linearization:** Since RTD sensors are not perfectly linear, the internal electronics apply a linearization curve to ensure the output current is proportional to the actual temperature. 3. **Isolation:** The "R2" series typically features **three-way isolation** (Input to Output to Power). This protects sensitive PLC/DCS inputs from ground loops and electrical noise. 4. **Signal Conversion:** It converts the low-level resistance reading into a robust 4–20 mA loop signal, which is less susceptible to EMI (Electromagnetic Interference) over long distances. --- ### ### Hardware Features * **Form Factor:** Ultra-slim housing (approx. 5.9 mm width) designed for high-density DIN rail mounting. * **LED Indicators:** Usually includes a power indicator LED to signify operational status. * **Calibration:** Features front-accessible Zero and Span adjustments for fine-tuning the electronic output without removing the wiring. * **Connection:** Uses tension clamp or screw terminals depending on the specific base socket used. --- ### ### Application Use Case This part is commonly used in industrial automation to bridge the gap between a temperature sensor (like a Pt100) and a controller (PLC). **Example Workflow:** `RTD Sensor` $\rightarrow$ `M2RTS-R-CC-R2` $\rightarrow$ `4-20mA Signal` $\rightarrow$ `PLC Analog Input` ---