Resistance measurement The common values of resistancefor a platinum RTD range from 10 ohms for the bird-cage model to several thousand ohms for the ï¬ lm RTD. The single most common value is 100 ohms at 0Â°C. The DIN 43760 standard temperature coefï¬ cient of platinum wire is Î± = .00385.he four-wire resistance measurement may not be required as it is with RTDâs. For example, a common thermistor value is 5000 Ï at 25Â°C. With a typical TC of 4%/Â°C, a measurement lead resistance of 10 Ï produces only .05Â°C error.
Cirrocumulus clouds are usually seen in the winter and indicate fair, but cold weather. In tropical regions, they may indicate an approaching hurricane. Alto Clouds Altostratus clouds are gray or blue-gray mid level clouds composed of ice crystals and water droplets.
Cumulus clouds are often called fair-weather clouds. The base of each cloud is flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus congestus or towering cumulus.irrostratus clouds are thin, sheetlike high clouds that often cover the entire sky. They are so thin that the sun and moon can be seen through them. Cirrostratus clouds usually come 12-24 hours before a rain or snow storm. Cirrocumulus clouds appear as small, rounded white puffs that appear in long rows.