Cement-On Polyimide Very Fast Response RTD Surface Sensors
Ideal Pt100 for Surface Temperature Measurement. Response Time in Milliseconds. Very Low Thermal Inertia. Wire Wound 100 Ohm Pt RTD Element. Rated to 260°C Long Term. Available in Two Standard Tolerances. Works with OB-(*) Series of Cements. Pt100 Lead Wire Tolerance is +2.00/-0.00. 90 cm Leads Standard. More
Item# (PN): SRTD1_SRTD2 Shipping and Payment
Models SRTD-1 and SRTD-2 are polyimide insulated surface mount RTD (Pt100) temperature sensors designed to provide a practical method for measuring surface temperatures. These Pt100 sensors are small and flexible, and their low mass has minimal thermal effect on the material being measured. They are ideally suited for applications where the Pt100 sensor can be mounted to the surface being measured using adhesives (OMEGABOND™ 101 and 200 epoxies can be used) or other mechanical mounting methods.
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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