PT100 Sensor | M6 Screw Mount | For Oven Temperature Control

This PT100 sensor gives exact temperature readings for factory machines. The M6 screw mount fastens directly to surfaces, giving accurate readings up to 400°C. It's a dependable PT100 temperature probe for consistent use in ovens and machinery. Features and Benefits - M6 screw-in probe - A screw-in PT100 probe stays tight and resists vibration, which helps with heat transfer. - 3-wire setup - This design accounts for cable resistance, making readings more accurate than a 2-wire design. - Shielded cable - The PT100 sensor's cable is protected from electrical interference, which is common in factories. - Platinum RTD element - As an RTD, this sensor is very accurate and stable. This makes it good for process control where consistency matters. Applications - Ovens and heat-treating furnaces for steady temperature control. - Plastic injection molding and extrusion machines. - Checking temperatures on engine blocks, bearings, and other equipment. Safety & Preparation Before working with any electrical components, including this PT100 Sensor, always ensure power is disconnected at the source. This sensor is designed for high temperatures, specifically 400-800 °C, so allow equipment to cool completely before handling. When installing the M6 screw mount, ensure a secure fit without over-tightening. Always consult the oven or controller manual for specific wiring diagrams and safety protocols relevant to your application. Proper preparation minimises risk and ensures accurate temperature readings for oven temperature control. Identify standard RTD Values An RTD (Resistance Temperature Detector) sensor, like this PT100, measures temperature by correlating resistance with temperature. PT100 sensors have a resistance of 100 ohms at 0 °C. Other common RTD types, while not applicable to this specific PT100 sensor, include PT500 (500 ohms at 0 °C) and PT1000 (1000 ohms at 0 °C). Knowing the base resistance helps in identifying the sensor type and troubleshooting. This particular sensor is a PT100, meaning it will exhibit 100 ohms resistance at 0 °C, essential for accurate oven temperature control. How to Test by Wire Configuration Testing an RTD sensor involves measuring its resistance. The method varies depending on the number of wires. This PT100 sensor is available with 1m, 2m, or 3m cable lengths. A multimeter is required for these checks. Understanding the wire configuration helps in accurately checking the RTD sensor's functionality and ensuring reliable temperature readings for industrial or oven temperature control applications. A. 2-Wire RTD For a 2-wire RTD, connect the multimeter leads to each of the two wires. Measure the resistance. Compare this reading to a known resistance-temperature chart for a PT100 sensor, accounting for the ambient temperature. The measured resistance should correspond to the temperature of the sensor. Be aware that with 2-wire configurations, the resistance of the cable itself (available in 1m, 2m, 3m lengths) can introduce inaccuracies, as it is included in the total resistance reading. This method provides a basic check for the RTD thermocouple sensor. B. 3-Wire RTD (Most Common) A 3-wire RTD uses two wires for the resistance measurement and a third wire to compensate for lead wire resistance, offering greater accuracy. Typically, two wires will be the same colour (e.g., red) and the third a different colour (e.g., white). Measure the resistance between the two like-coloured wires. Then, measure the resistance between one of the like-coloured wires and the different-coloured wire. These two readings should be very similar. If the sensor is functioning correctly, the resistance between the two like-coloured wires will correspond to the sensor's temperature, with the third wire helping to cancel out cable resistance effects.