Based on the model number provided, the **W2TS-N1B-R2** belongs to the **W2TS Series** of ultra-thin, high-precision signal conditioners (isolators) manufactured by **M-System** (now part of MG CO., LTD). These devices are designed to receive an analog signal, provide galvanic isolation to prevent ground loops, and output a standardized signal for PLCs or DCS systems. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Input Signal** | DC Current (4 – 20 mA DC) | | **Output 1** | 4 – 20 mA DC | | **Output 2** | 1 – 5 V DC | | **Power Input** | 24V DC | | **Accuracy** | ±0.1% | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Isolation** | Input to Output 1 to Output 2 to Power | | **Mounting** | DIN Rail | --- ### 2. Part Number Breakdown The suffix code **N1B-R2** defines the specific electronic characteristics: * **N**: Input type (4 – 20 mA DC). * **1**: Output 1 type (4 – 20 mA DC). * **B**: Output 2 type (1 – 5 V DC). * **R**: Power Supply (24V DC). * **2**: Designates the "Dual Output" configuration. --- ### 3. Key Electronic Components & Functionality #### A. Galvanic Isolation The "W" in the series name often signifies a "Wide" or "Dual" output capability. The internal circuitry uses **optical or magnetic coupling** to isolate the input from the outputs. This protects sensitive control equipment from high-voltage surges or electrical noise on the field side. #### B. Signal Conditioning Circuitry * **Input Stage:** A precision shunt resistor converts the 4-20mA current into a voltage. * **Processing Stage:** High-stability Op-Amps and a precision voltage reference ensure that the signal gain remains linear across the entire range. * **Output Stage:** Two independent drivers (one current-driven for Output 1, one voltage-driven for Output 2) allow the signal to be sent to two different devices (e.g., a local display and a remote PLC) simultaneously. #### C. Power Management The **R (24V DC)** power circuit includes internal filtering to mitigate electromagnetic interference (EMI) and reverse polarity protection to prevent damage during installation. --- ### 4. Typical Application Example ```mermaid graph LR A[Field Sensor 4-20mA] --> B[W2TS-N1B-R2] B --> C[PLC Channel 1 - 4-20mA] B --> D[Data Logger - 1-5V] E[24V DC Supply] --> B ```