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the sensor is hermetically sealed in a closed tube and thus resistant against aggressive environments as exhaust gases, contaminants, suspended matters, moisture, salt fog and aggresive fluids. Obviously, the sensor is ideally suitable for industrial process control spplications (equipments and systems) Advantages -
the latest development stage of thin film technology makes platinum temperature sensors a low price, yet high performance product. An alternative to ntc, ptc and kty semiconductors, they more and more gain ground on the mass market.
electronic control units connected to high precision sensors control baking ovens, cooking zones (up to 250 deg c), pyrolysis processes (550 deg c) and the charging of storage heatings (650 deg c). In low temperature ranges up to 250 deg c, the pts are superior to capillary tubes, rod dilation controls and thermistors not only technically but also in regard to price. Especially at higher temperatures, the use of such controlling components is critical respectively no longer accepted. Characteristics -
platinum temperature sensors in thin film technology (pts) have an internationally standardized characterisitcs curve according din en 60751. The temperatures vary from -50 deg c to 600 deg c, optional from -200 deg c to 1000 deg c. In such a wide temperature range pts shows a high measuring accuracy and long term stability. Sensotherm sensors are available in the tolerance classes din b and din a and in class t (1/3 din b), p (1/5 din b) and z (1/10 din b). Sensors with a greater deviation belong to tolerance class c: twice din b.
the specific precious metal characteristics of platinum, the special sensotherm processing technology and an advanced choice of materials guarantee reproducible pts values in various fields of use even after many years. The platinum sensors are almost insensitive to temperature shock.