Sensor Protection Sleeve | Stainless Steel Blind Tube | 6mm

This stainless steel sleeve protects your PT100 sensor or DS18B20 probe. It's a blind tube, so one end is sealed. This shields the sensor from moisture and physical contact. This design makes installing or replacing a PT100 RTD sensor simple. Features and Benefits - 304 Stainless Steel Body - Resists corrosion; use it in many temperature settings. - 6mm Inner Diameter - Fits common PT100 and DS18B20 temperature sensor probes snugly. - Blind Tube Construction - Guards the sensor element. It creates a waterproof PT100 sensor assembly when sealed. - Two Length Options (30mm and 50mm) - Pick the right size sleeve for your installation needs. Applications - Building an accurate PT100 sensor for industrial use where environmental protection is necessary. - Making custom temperature probes for DIY electronics, including a PT100 sensor for Arduino projects. - Repairing or building temperature sensors for HVAC equipment, boilers, and liquid tanks. Safety & Preparation When working with any precision sensor, including the Sensor Sleeve for PT100 and DS18B20 probes, safety is paramount. Always ensure that power to any connected controller or system is disconnected before installation or maintenance. Handle the stainless steel protective sheath carefully to avoid sharp edges. Verify that the dimensions, 6mm x 30mm or 6mm x 50mm, are suitable for your application to ensure a secure and effective fit for your RTD sensor. Proper preparation prevents damage to the sensor and ensures accurate readings. Identify standard RTD Values An RTD sensor, or Resistance Temperature Detector, is a precision sensor that measures temperature by correlating resistance with temperature. The PT100 sensor, a type of RTD, has a resistance of 100 ohms at 0°C. This product is a PT100 Sensor Sleeve, designed to house such sensors. Understanding these standard values is crucial for checking an RTD sensor's functionality and ensuring it provides accurate data to your controller. The stainless steel construction of this sleeve helps protect the sensor, maintaining its integrity. How to Test by Wire Configuration To check an RTD sensor, you will typically use a multimeter to measure its resistance. The method varies depending on the number of wires the RTD sensor has. For this PT100 Sensor Sleeve, which is compatible with PT100 sensors, understanding the wiring configuration is key to accurate testing. The two main types are 2-wire and 3-wire RTDs, with 3-wire being the most common for better accuracy. A. 2-Wire RTD A 2-wire RTD sensor is the simplest configuration. To test it, connect the multimeter leads to the two wires of the sensor. Measure the resistance across these two points. At 0°C, a PT100 sensor should read approximately 100 ohms. This reading includes the resistance of the wires themselves, which can introduce some error, especially over longer distances. The Sensor Sleeve provides protection for the sensor during this process. B. 3-Wire RTD (Most Common) The 3-wire RTD is the most common configuration and offers improved accuracy by compensating for lead wire resistance. It has two wires of the same colour (typically red) and one of a different colour (typically white). To test, measure the resistance between the two like-coloured wires. Then, measure the resistance between one of the like-coloured wires and the third wire. The two measurements should be very similar, indicating healthy lead wires. This method helps in accurately checking an RTD sensor housed within the stainless steel protective sheath.