The **W2VS-AAB-R** is a specific model of a **Signal Conditioner / Isolator** (likely from the W2 Series manufactured by M-System). These devices are used in industrial automation to convert, isolate, and transmit electrical signals between field instruments and control systems (PLCs/DCS). Below is the breakdown of its electronic characteristics and specifications based on the standard model coding. --- ## 1. Product Identification & Type | Feature | Specification | | :--- | :--- | | **Series** | W2 Series (Mini-M Series) | | **Device Type** | Signal Conditioner (Transducer) | | **Function** | Dual-output signal isolation and conversion | | **Housing** | Compact plug-in base | --- ## 2. Model Code Breakdown (W2VS-AAB-R) The suffix codes define the specific electronic input/output configuration: | Code Segment | Description | Details | | :--- | :--- | :--- | | **W2VS** | Model Name | Signal Conditioner (Dual Output) | | **A** | Input Signal | **4 – 20 mA DC** | | **A** | Output 1 | **4 – 20 mA DC** | | **B** | Output 2 | **2 – 10 mA DC** | | **R** | Power Supply | **24V DC** | --- ## 3. Key Electronic Specifications These parts are designed for high reliability in electrically "noisy" industrial environments. ### Input & Output Characteristics * **Input Resistance:** Typically 250 $\Omega$ for the 4-20mA input. * **Output Load Resistance:** * Output 1 (4-20mA): Max 750 $\Omega$ * Output 2 (2-10mA): Max 1500 $\Omega$ * **Accuracy:** $\pm$0.1% of span. * **Response Time:** $\le$ 0.5 seconds (0 – 90%). ### Isolation Circuitry The device features **3-port isolation**. This electronically separates the three main sections to prevent ground loops and protect sensitive equipment: 1. **Input** 2. **Output** (Output 1 and Output 2 are often isolated from the input, but check if they share a common ground). 3. **Power Supply** ### Power Requirements * **Voltage:** 24V DC. * **Operational Range:** 24V DC $\pm$10%. * **Current Consumption:** Approx. 80 mA. --- ## 4. Physical & Installation Parts * **Connection:** M3.5 screw terminals (on the base). * **Mounting:** DIN rail or surface mounting via a plug-in socket. * **Indicators:** Power LED (usually green) to indicate the internal electronic status. * **Adjustments:** Front-facing Zero and Span adjustments (potentiometers) for fine-tuning the analog outputs. ---