Based on the technical nomenclature commonly used in industrial automation, the **FRTD-R-0C-R** typically refers to a specific configuration of a **Resistance Temperature Detector (RTD)** sensor probe, often associated with industrial manufacturers like Autonics or similar control system providers. Below is a breakdown of the electronic components and specifications associated with this part. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Sensor Type** | RTD (Pt100Ω) | | **Material** | Stainless Steel (SUS316 or SUS304) | | **Connection Method** | 3-wire system | | **Operating Temperature** | -50°C to +400°C (typical range) | | **Accuracy Class** | Class A or Class B (Standard) | | **Mounting** | Fixed thread or Compression fitting | --- ### 2. Breakdown of the Electronic Components #### A. The Sensing Element (Pt100) The core "electronic" part is the **Platinum (Pt)** resistor. - **Ohmic Value:** It has a resistance of 100 Ohms at 0°C. - **PTC Behavior:** It is a Positive Temperature Coefficient sensor; as temperature rises, the electrical resistance increases linearly. #### B. The 3-Wire Configuration The "R" in the suffix often denotes the wiring style. A **3-wire** setup is used to: 1. Provide one wire for the current source. 2. Provide a second wire for the return. 3. Use the third wire to measure the lead-wire resistance, allowing the controller to cancel out cable errors. #### C. Protective Sheath The electronic element is encased in a metal tube (Sheath). This protects the delicate platinum film or wire from: - Moisture and oxidation. - Mechanical vibration. - Corrosive chemical environments. --- ### 3. Connection and Integration To utilize this part in a circuit, it must be connected to a measuring instrument such as a **PID Controller**, **PLC Analog Input Card**, or a **Digital Thermometer**. ```python # Conceptual logic for an RTD signal conversion (Resistance to Temp) def rtd_resistance_to_temp(ohms): # Simplified Callendar-Van Dusen equation for Pt100 R0 = 100.0 alpha = 0.00385 temperature = (ohms - R0) / (R0 * alpha) return temperature print(f"Temperature for 138.5 Ohms: {rtd_resistance_to_temp(138.5)} C") ``` --- ### 4. Part Number Logic (Typical) * **FRTD:** Flexible/Fixed Resistance Temperature Detector. * **R:** Round or Rigid probe type. * **0C:** Temperature range or Specific terminal head type (e.g., Connector vs. Lead wire). * **R:** Redundant check or specific Lead-wire insulation (e.g., Teflon/Glass Fiber).