Self-Adhesive Polyimide Fast Response RTD Surface Sensors (Class A)
Pt100 DIN Class A (±0.06 Ω or ±0.15°C at 0°C) Accuracy Standard. Easy-Installation Silicone-Based, Self-Adhesive Backing Rated to 260°C. Back Can be Reapplied. Pt100 Temperature Range -73C to 260°C. Continuous, 290°C Short Term Operation When Installed with OMEGABOND Air Set Cements. Optional 4-Wire Configuration. Lengths Available in 1 m (40"), 2 m (80") and 3 m (120") and Custom Length Lead Wires. Other RTD Resistances/Accuracies Available on Request. Stainless Steel Overbraid Pt100 Option to reduce electrical noise and protect lead wire from abrasion is also available. More
Item# (PN): SA1-RTD_series Shipping and Payment
The SA1-RTD surface-mount RTD (Pt100) temperature sensor mounts on flat or curved surfaces and provides Class A accuracy for critical temperature monitoring applications. Based on a 2 x 2 x 0.8 mm thin-film platinum RTD and supplied with bare 3-wire leads as a standard configuration (connector optional), it can be customized for use in a wide variety of applications. The Pt100 sensor can be easily applied with its selfadhesive backing, or positioned permanently with OMEGABOND™ cements.
Use the SA1-RTD Pt100 sensor to monitor chip, heat sink, and environmental temperatures in electronic devices; check piping or ducting temperatures;monitor motor and transformer core heat; test insulation capabilities; and check other applications in which surface and/or gradient temperatures need to be monitored or controlled.
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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