The **W2SP-2BB-R2/CE** is a high-performance **Signal Conditioner** (Isolator/Converter) manufactured by **M-System**. It is part of the M-Rester series, specifically designed to convert a DC input signal into two isolated DC output signals while providing lightning surge protection. --- ### ## Technical Specifications The following table outlines the primary electronic characteristics of the device: | Feature | Specification | | :--- | :--- | | **Model Type** | Ultra-slim Signal Conditioner (W2SP Series) | | **Input Type** | 4 – 20 mA DC | | **Output 1** | 4 – 20 mA DC | | **Output 2** | 4 – 20 mA DC | | **Power Input (R2)** | 11 – 27 V DC | | **Isolation** | Input to output 1 to output 2 to power | | **Dielectric Strength** | 2000 V AC @ 1 minute | | **Accuracy** | ±0.1% of span | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Standards** | CE Marking | --- ### ### Core Electronic Components & Architecture The internal circuitry is divided into four main sections to ensure signal integrity and safety: 1. **Input Conditioning Circuit:** * Features a low-impedance shunt resistor to convert the current loop into a voltage signal. * Includes a **Surge Absorber** at the input terminals to protect the internal electronics from high-voltage spikes (lightning or switching surges). 2. **Galvanic Isolation (Optical/Magnetic):** * Uses high-speed optocouplers or transformers to transfer the signal across an isolation barrier. * This prevents "Ground Loops," which can cause measurement errors in industrial environments. 3. **Dual Output Buffers:** * The signal is split into two independent stages. * Each output has its own driver circuit, ensuring that a short circuit or failure on "Output 1" does not affect "Output 2." 4. **DC/DC Converter:** * The "R2" designation indicates a 24V DC power requirement. * An internal high-frequency switching regulator converts the input power into multiple isolated rails to power the input and output stages separately. --- ### ### Key Application Features * **Space Efficiency:** The "Ultra-slim" design allows for high-density mounting on DIN rails. * **Maintenance:** Features a plug-in base socket, allowing the electronic module to be replaced without disconnecting the field wiring. * **Noise Immunity:** Designed for harsh industrial environments with high electromagnetic interference (EMI).