Sensor | Industrial Platinum Resistance | RTD Thermometer Probe

This PT100 temperature sensor has a 1/2" NPT threaded fitting. You can install it directly into kettles, pipes, and tanks. It's a platinum resistance thermometer, also called an RTD. It's made for industrial uses like brewing, where precise temperature control is important. The design creates a liquid-tight seal. Features and Benefits - Standard 1/2" NPT threading - Screws right into common ports. This makes for a fast, secure, and leak-proof fit. - Class A PT100 RTD sensor - Gives accurate measurements. This helps with sensitive processes. - 316 stainless steel probe - It's sanitary and resists corrosion. This makes it a good choice for food, beverage, and brewing. - Shielded braided cable - Adds protection against wear and electrical interference in busy workshops. Applications - Homebrewing and commercial brewing for checking mash, sparge, and boil temperatures. - Food and beverage production lines that need a sanitary, liquid-tight RTD sensor. - Industrial process control for checking oils, coolants, and other fluids in machinery. Safety & Preparation Before checking an RTD sensor, ensure the power to any connected equipment is fully isolated. This prevents accidental shock and protects the precision sensor from damage during testing. Gather a high-accuracy multimeter capable of measuring resistance to 0.1 Ohms, as the resistance values of these Industrial Platinum Resistance RTD Thermometer Probes are precise. Understand that an RTD sensor, or Resistance Temperature Detector, measures temperature by correlating resistance with temperature. This specific probe has a Resistance Value of 100 Ohms at 0°C, meaning its resistance will change predictably with temperature. Identify standard RTD Values An RTD sensor, such as this Industrial Platinum Resistance RTD Thermometer Probe, is fundamentally a temperature sensor that changes its electrical resistance as its temperature changes. The most common resistance value for an RTD sensor at 0°C is 100 Ohms, often referred to as a PT100 Temperature Sensor. This specific product is a PT100, with a Resistance Value of 100 Ohms at 0°C. Other common, though less frequent, values include 500 Ohms (PT500) and 1000 Ohms (PT1000) at 0°C. When checking an RTD sensor, comparing its measured resistance to a known resistance-temperature table for a PT100 will help determine its accuracy or identify a fault. How to Test by Wire Configuration Testing an RTD sensor, like this Industrial Platinum Resistance RTD Thermometer Probe, depends on its wiring configuration. The goal is to measure the resistance of the Sensing Element: Platinum Resistance Thermom, while compensating for lead wire resistance. Incorrect measurement can lead to inaccurate temperature readings, impacting any connected controller. Understanding the wiring configuration is crucial for an accurate check of the RTD sensor's functionality. This probe is an Industrial Temperature Sensor, and its resistance at 0°C is 100 Ohms. A. 2-Wire RTD When checking an RTD sensor with a 2-wire configuration, connect the multimeter leads directly to the two sensor wires. This measures the total resistance of the sensing element plus the resistance of both lead wires. For this Industrial Platinum Resistance RTD Thermometer Probe, expect a reading around 100 Ohms at 0°C, plus the resistance added by the wires. This configuration is the least accurate for precision sensor applications because it cannot compensate for lead wire resistance, especially over long distances. If the reading is significantly off the expected value for the ambient temperature, the RTD sensor may be faulty. B. 3-Wire RTD (Most Common) For a 3-wire RTD sensor, which is the most common configuration for an Industrial Platinum Resistance RTD Thermometer Probe, connect the multimeter to measure the resistance between the two sensing wires, and then between one sensing wire and the compensation wire. The two wires that show resistance (typically white) are the sensing wires, and the third (often red) is the compensation wire. Measure the resistance between the two sensing wires. Then, measure the resistance between each sensing wire and the compensation wire. The resistance of the lead wires should be approximately equal. Subtract the lead wire resistance from the total resistance to find the true resistance of the Sensing Element: Platinum Resistance Thermom. This method provides better accuracy for the PT100 Temperature Sensor.