The **W2TS-4B3-R/Q** is a high-precision, industrial-grade **Pt100/Pt1000 temperature transmitter** (also known as a signal conditioner). These devices are typically used in automation to convert resistance signals from temperature sensors into stable, interference-free electrical signals. --- ### 1. Key Technical Specifications The following table outlines the core electronic characteristics of the W2TS series: | Feature | Specification Details | | :--- | :--- | | **Input Type** | Pt100, Pt1000, or Cu50 RTD (Resistance Temperature Detector) | | **Output Type** | 4-20mA, 0-10V, or 0-5V (Model dependent) | | **Power Supply** | Typically 24V DC (Range: 18V - 30V) | | **Accuracy Class** | 0.1% or 0.2% F.S. (Full Scale) | | **Isolation Voltage** | 1500V AC or higher (3-way isolation: Input/Output/Power) | | **Mounting** | 35mm DIN Rail | --- ### 2. Functional Components The "Electronic Parts" within this module work together to ensure signal integrity: 1. **Input Bridge/Conditioning Circuit:** Converts the variable resistance of the RTD into a small voltage. It includes compensation for lead wire resistance (3-wire or 4-wire configurations). 2. **Isolation Barrier:** Uses optocouplers or magnetic coupling to separate the input, output, and power circuits. This prevents ground loops and protects the PLC/DCS from high-voltage surges. 3. **Signal Amplifier & Linearization:** RTDs are not perfectly linear. The internal circuitry applies a linearization curve to ensure the output signal is proportional to the temperature, not the resistance. 4. **Zero/Span Adjustments:** Often features fine-tuning potentiometers or digital calibration to align the output exactly with the measured temperature range. --- ### 3. Model Nomenclature Breakdown (W2TS Series) The specific suffixes in the part number refer to the internal configuration: * **W2TS:** Series designation (RTD Temperature Transmitter). * **4B3:** Usually denotes the specific input-output configuration (e.g., Pt100 to 4-20mA). * **R / Q:** * **R:** Often indicates a specific resistance range or high-reliability variant. * **Q:** Often stands for "Quick" or specific terminal block styles (spring vs. screw). --- ### 4. Wiring Diagram Concept ```mermaid graph LR A[RTD Sensor] -->|Resistance| B(W2TS Transmitter) C[24V DC Power] --> B B -->|4-20mA / 0-10V| D[PLC / Controller] ``` ---