PT100 Sensor | Waterproof RTD Probe | 3-Wire Silicone Cable

This PT100/PT1000 RTD temperature sensor gives accurate readings for industrial and lab uses. As a platinum resistance thermometer, this pt100 sensor provides steady and repeatable measurements across a wide temperature range. It's in a waterproof probe for use in wet places. Features and Benefits - Waterproof Probe and Cable - A stainless steel probe and flexible silicone cable are fully sealed for submersion and use in wet conditions. - Multiple Configurations - Available as a PT100 or PT1000 sensor with 3-wire or 4-wire setups to match your system's accuracy needs. - Class A Accuracy - Built to a tight tolerance (±0.15 + 0.002|t| °C), ensuring your temperature data is precise enough for process control. - Wide Measurement Range - Works accurately from -50°C to 200°C, covering many heating and cooling applications. Applications - Industrial Process Control - Track temperatures in machinery, chemical vats, or food production lines for consistent results. - HVAC System Monitoring - Gives accurate feedback for climate control equipment and building energy management. - Laboratory and Research - Measure temperatures with confidence in experiments, incubators, or environmental chambers. Safety & Preparation Before working with any electrical components, always ensure the power supply is disconnected to prevent electric shock. This Waterproof RTD Probe is a precision sensor, designed for accurate temperature measurement. When handling, avoid bending or stressing the probe or the Silicone cable beyond their natural flexibility to prevent damage. Ensure your measuring equipment, such as a multimeter or controller, is calibrated and in good working order for reliable testing of your PT100 Sensor. Identify standard RTD Values An RTD (Resistance Temperature Detector) sensor, like this PT100 Sensor, measures temperature by correlating resistance to temperature. The "PT" indicates platinum, and "100" refers to 100 ohms of resistance at 0°C. Other common RTD values include PT1000, which has 1000 ohms at 0°C. Understanding these standard values is crucial for checking your RTD sensor and ensuring it’s functioning correctly within your system or with your controller. How to Test by Wire Configuration To check an RTD sensor, you will typically measure the resistance across specific wires. The method varies depending on the wire configuration. This PT100 Sensor is available with a 3-Wire configuration, with a 4-Wire option also available. Accurate testing ensures the sensor is providing correct temperature readings to your controller or display unit. A. 2-Wire RTD A 2-wire RTD, while simpler, is less accurate for longer cable runs due to lead wire resistance affecting the measurement. To test, connect an ohmmeter between the two wires. The reading should correspond to the expected resistance for the sensor type (e.g., 100 ohms for a PT100 at 0°C) and the current ambient temperature. Remember that the resistance of the lead wires themselves will be included in this reading, potentially leading to slight inaccuracies. B. 3-Wire RTD (Most Common) The 3-Wire configuration, common for PT100 Sensors like this one, offers improved accuracy by compensating for lead wire resistance. Typically, two wires are the same colour (e.g., red) and one is different (e.g., white). To test, measure the resistance between the two identical wires (these are the sensing wires). Then, measure the resistance between one of the identical wires and the different coloured wire. These two readings should be very similar, indicating the lead wires have equal resistance. The difference between the first reading and the average of the second two should be close to the sensor's nominal resistance.