The **M2RTS-R-3A-R2/N** is a specific model of a **RTD (Resistance Temperature Detector) Transmitter** manufactured by **M-System**. It is designed to convert signals from a temperature sensor (RTD) into a standard industrial DC signal. --- ### 1. Component Overview The M2RTS belongs to the "Mini-M" series, known for its plug-in base socket design and compact form factor. | Feature | Specification | | :--- | :--- | | **Primary Function** | RTD to DC Current/Voltage Converter | | **Model Series** | M2RTS (Mini-M Temperature Transmitter) | | **Input Type** | RTD (Resistance Temperature Detector) | | **Isolation** | 3-Port Isolation (Input to Output to Power) | --- ### 2. Breakdown of the Model Number The suffix codes indicate specific electronic configurations for this unit: | Code | Meaning | Description | | :--- | :--- | :--- | | **M2RTS** | Model Series | RTD Transmitter | | **-R** | Power Input | **24V DC** power supply | | **-3** | Input Type | **Pt 100** (platinum 100 ohms) | | **-A** | Output Type | **4 – 20 mA DC** (Standard current loop) | | **-R2** | Option | **Burnout protection (High)** & Special response time | | **-N** | Base Socket | **No base socket** (Transmitter module only) | --- ### 3. Key Electronic Characteristics * **Galvanic Isolation:** This part uses 3-way isolation (2000V AC). This protects the control system (PLC/DCS) from ground loops or high-voltage surges occurring at the sensor end. * **Burnout Protection:** The "R2" designation ensures that if the RTD wire breaks, the output signal will automatically go to "Upscale" (above 20mA), alerting the system of a sensor failure. * **Linearization:** The internal circuitry includes a linearization circuit to compensate for the non-linear relationship between RTD resistance and temperature. * **Zero/Span Adjustment:** Located on the front panel, these allow for manual calibration of the electronic signal output. --- ### 4. Technical Specifications | Parameter | Value | | :--- | :--- | | **Accuracy** | ±0.1% of span | | **Temperature Coefficient** | ±0.015% per °C | | **Response Time** | Approximately 0.5 seconds (0 to 90%) | | **Power Consumption** | Approx. 3W | | **Mounting** | DIN Rail (when used with socket) | ---