Quick-disconnect RTD (Resistance Temperature Detector) probes are designed for easy and rapid connection and disconnection in temperature measurement applications. They consist of a sensing element, typically made of platinum, which changes resistance with temperature. The key components include:
1. **Sensing Element**: The RTD element, often a thin wire or film, is usually made of platinum due to its stable and repeatable resistance-temperature relationship. Common configurations are PT100 or PT1000, indicating 100 or 1000 ohms at 0°C.
2. **Probe Sheath**: The sensing element is housed within a protective sheath made of stainless steel or other materials, providing durability and protection against environmental factors.
3. **Wiring**: The RTD is connected to lead wires, which transmit the resistance signal to a measurement device. These wires are often insulated and may be configured in 2-wire, 3-wire, or 4-wire setups to compensate for lead resistance and improve accuracy.
4. **Quick-Disconnect Connector**: This is the defining feature, allowing the probe to be easily attached or detached from the measurement system. The connector is designed for secure, reliable connections and can be a bayonet, plug, or other types, often with locking mechanisms to prevent accidental disconnection.
5. **Calibration and Signal Processing**: The resistance change is converted into a temperature reading by a connected device, which may include calibration features to ensure accuracy.
Quick-disconnect RTD probes are used in applications requiring frequent probe changes or maintenance, offering convenience and minimizing downtime. They are ideal for industrial processes, laboratory settings, and any environment where rapid and reliable temperature measurements are essential.