High Accuracy Ceramic Wire Wound Platinum Pt100 Elements
Pt100 available in three tolerance classes: Class A (IEC 60751), Class 1/3, Class 1/10. Temperature Coefficient of Resistance (Alpha): 0.00385Ω/Ω/°C Nominal. Pt100 is Available in Single and Dual Element Styles in Some Sizes. Pt100 Operating Temperature Range -196 to 600°C with Tolerances Assured Over the Specified Temperature Range for Each Class. Pt100 Ceramic Body with Palladium-Gold Alloy Lead Wires. Suggested Operating Current: 1 milliamp max. More
Item# (PN): 1PT100KN-2PT100KN Shipping and Payment
These "KN" Series wire wound Pt100 platinum sensing elements are available in three tolerance classes:
Class A, Temperature Range -100 to 450°C, Tolerance = ± 0.15+(.002 * t) °C
Class 1/3, Temperature Range -100 to 350°C, Tolerance = ± 0.10+(.0017 * t) °C
Class 1/10, Temperature Range 0 to 100°C, Tolerance = ± 1/10*( 0.30+(.005 * t)) °C
with t = temperature in °C regardless of sign.
Note: These Pt100 elements are capable of being exposed to temperatures between -196 and 600°C, however the tolerances apply only within the temperature ranges shown for each class.
These Pt100 elements are made with wire wound platinum coils, ceramic housings and palladium-gold alloy lead wires. The small size of the Pt100 sensor body allows for easy installation in protective tubes or custom housings. Pt100 applications include a variety of processes and equipment.
The online configurator may not contain all available options. If you do not find what you are looking for, please contact us.
Complete informations can be found in the spec sheet (PDF), see the "Download" section.
RTD Pt100 vs Thermocouple
It is not practical to compare RTDs (Pt100 and others) and thermocouples generally. However, if we compare their performance in terms of specific criteria, we can see which is best suited for specific applications. Thermocouples are best for working at high temperatures. New manufacturing techniques have improved the measurement range of RTD probes, but more than 90% of RTDs are designed for temperatures below 400°C.
In contrast, some thermocouples can be used at up to 2500°C. Thermocouples are generally cheaper than RTDs...
Origin Story of the RTD / Pt100
The same year (1821) that Thomas Seebeck made his discovery about thermoelectricity (Seebeck effect, see thermocouples), Sir Humphrey Davy announced that the resistivity of metals showed a marked temperature dependence. Fifty years later, Sir William Siemens proffered the use of platinum as the element in a resistance thermometer. His choice proved most propitious, as platinum is used to this day as the primary element in all high-accuracy resistance thermometers, Pt100, Pt1000 etc.
In fact, the Platinum Resistance Temperature Detector, or RTD Pt100, is used today as an interpolation standard from the oxygen point (-182.96°C) to the antimony point (630.74°C)...
What are RTD temperature sensors?
RTDs or Resistance Temperature Detectors, are temperature sensors that contain a resistor that changes resistance value as its temperature changes. The most popular RTD is the Pt100. They have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy, repeatability, and stability.
Most RTD elements consist of a length of fine coiled wire wrapped around a ceramic or glass core. The element is usually quite fragile, so it is often placed inside a sheathed probe to protect it...
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