Based on the technical specifications for the **M2RTS-S-B3-R2**, this model belongs to the **M2 Series** of transducer/signal conditioners manufactured by **M-System**. It is a compact, plug-in RTD (Resistance Temperature Detector) transmitter. --- ## 1. Component Identification The model number breaks down into the following electronic specifications: | Code Segment | Description | Specific Detail | | :--- | :--- | :--- | | **M2RTS** | Model Name | RTD Transmitter (Plug-in) | | **S** | Input Signal | Platinum RTD (Pt 100) | | **B3** | Output Signal | 1 – 5V DC | | **R2** | Power Input | 11 – 27V DC | --- ## 2. Technical Electronic Characteristics ### Input Section * **Sensor Type:** Designed specifically for **Pt 100** (platinum) resistance temperature detectors. * **Wiring:** Supports a 3-wire configuration to compensate for lead-wire resistance. * **Burnout Protection:** Usually includes an upscale or downscale burnout function to protect the system if a wire breaks. ### Output Section * **Type:** Analog Voltage. * **Range:** 1 to 5 Volts DC. * **Load Resistance:** Minimum 2500 Ω required for stable output. ### Power Supply & Isolation * **Supply Voltage:** 11 to 27V DC (Ripple 10% p-p max). * **Isolation Structure:** 3-way isolation. This electronically separates the **Input**, **Output**, and **Power** circuits from each other, preventing ground loops and protecting sensitive equipment. * **Isolation Strength:** Typically rated for 2000V AC @ 1 minute. --- ## 3. Physical & Installation Features * **Housing:** Compact plug-in style. * **Terminal Base:** Uses a socket base for easy maintenance (allows replacing the electronics without disconnecting wires). * **Adjustments:** Contains front-accessible "Zero" and "Span" potentiometers for fine-tuning the electronic calibration. --- ## 4. Wiring Diagram (Logical Representation) ```text [POWER: 11-27V DC] ----> [Terminals 7(+) & 8(-)] [INPUT: Pt 100] ----> [Terminals 1, 2, & 3] [OUTPUT: 1-5V DC] ----> [Terminals 5(+) & 6(-)] ```