The **W2TS-NBC-R2/CE** is a specialized electronic component, typically categorized as a **Temperature Transmitter** or a **Signal Conditioner** (often associated with the W2 Series by manufacturers like M-System or similar industrial control brands). These devices are designed to convert signals from temperature sensors (like Thermocouples or RTDs) into a stable, isolated analog output signal suitable for PLCs or DCS systems. --- ## 1. Technical Specifications The "W2TS" series generally refers to a **Dual-Output** Slim Terminal Block Signal Conditioner. Below are the typical electronic characteristics for this specific model: | Feature | Specification Details | | :--- | :--- | | **Input Type** | Thermocouple (Various types like K, E, J, T, B, R, S, N) | | **Output 1** | DC Voltage or Current (Standard 4–20mA or 1–5V DC) | | **Output 2** | DC Voltage or Current (Dual independent outputs) | | **Power Supply** | Usually 24V DC (range 10.8 – 26.4V DC) | | **Isolation** | 3-way or 4-way isolation (Input to Output to Power) | | **Mounting** | DIN Rail Mounting | | **Accuracy** | Approx. ±0.1% of span | --- ## 2. Key Electronic Components & Functions The internal circuitry of the W2TS-NBC-R2/CE consists of several critical stages: ### A. Input Conditioning (The "N" in NBC) * **Cold Junction Compensation (CJC):** Since thermocouples measure temperature differences, the device includes a thermistor or transistor-based sensor at the terminal block to compensate for the ambient temperature at the connection point. * **Burnout Protection:** A circuit that forces the output to a specific level (high or low) if the sensor wire breaks. ### B. Signal Isolation * **Optocouplers/Transformers:** To prevent ground loops and protect sensitive PLC equipment from high-voltage surges on the field side, the electronics use galvanic isolation between the input, power, and outputs. ### C. Digital Processing (The "Microprocessor") * **A/D Converter:** Converts the tiny millivolt (mV) signal from the thermocouple into a digital value. * **Linearization:** Thermocouples are non-linear; the internal software applies a curve-fitting algorithm to ensure the output is proportional to the actual temperature. ### D. Output Stage * **D/A Converter:** Converts the processed digital signal back into an analog 4-20mA or 1-5V signal. * **Dual Drivers:** The "W" in the series signifies two outputs, meaning the internal electronics split the signal into two isolated paths. --- ## 3. Component Breakdown (Naming Convention) While specific to the manufacturer's catalog, the suffix usually breaks down as follows: 1. **W2TS:** Series code (Dual output temperature transmitter). 2. **N:** Input type (Typically refers to a specific Thermocouple range). 3. **B:** Output 1 type (e.g., 2–10V or 4–20mA). 4. **C:** Output 2 type. 5. **R2:** Power input specification (Often 24V DC). 6. **CE:** Conformité Européenne (Meets European safety, health, and environmental protection requirements). --- ## 4. Wiring Diagram Overview For a standard installation, the electronic connections are arranged as follows: ```text [ Sensor Side ] ----> [ W2TS-NBC-R2/CE ] ----> [ Controller Side ] (TC +/-) (Terminals 1-2) (Out 1: 4-20mA) (Out 2: 1-5V) (Power: 24V DC) ```