The **W2SP-2CA-R2/UL** is a high-performance **Signal Conditioner (Isolator)** manufactured by **M-System**. It is specifically designed to accept a DC input signal and provide two isolated DC output signals (1-input, 2-output configuration). --- ### ## Technical Specifications The following table outlines the primary electronic characteristics of the device: | Feature | Specification | | :--- | :--- | | **Input Signal** | 4 – 20 mA DC | | **Output 1** | 4 – 20 mA DC | | **Output 2** | 1 – 5 V DC | | **Power Input** | 100 – 240V AC | | **Isolation** | 3-Way (Input to Output to Power) | | **Accuracy** | ±0.1% of span | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Standards** | UL/cUL recognized, CE marking | --- ### ## Key Electronic Components & Functionality #### 1. 3-Way Isolation This part uses internal transformers and opto-isolators to ensure complete electrical separation between the input signal, the output signals, and the power source. This prevents ground loops and protects sensitive PLC/DCS inputs from high-voltage surges. #### 2. Dual Output Buffer The "2CA" designation indicates a dual-output configuration. Internally, the circuit splits the input signal: * **Output 1 (Current):** Provides a standard 4-20mA loop for recording or control. * **Output 2 (Voltage):** Provides a 1-5V signal, often used for local monitoring or legacy systems. #### 3. Power Supply Unit (R2) The "R2" suffix denotes a universal AC power supply. The internal circuitry includes a switching regulator that can handle a wide range of AC voltages (100V to 240V) while maintaining a stable DC rail for the signal processing components. #### 4. Adjustment Trimmers The front panel typically features **Zero** and **Span** adjustments. These are high-precision potentiometers used to calibrate the output signals to ensure they accurately match the input signal range. --- ### ## Connection Diagram (Conceptual) ```mermaid graph LR A[4-20mA Input] --> B(W2SP-2CA-R2/UL) C[100-240V AC Power] --> B B --> D[Output 1: 4-20mA] B --> E[Output 2: 1-5V] ``` ---