C4 pathway A pathway of carbon fixation, found most commonly in tropical plants that have high rates of growth and photosynthesis and that are adapted to high temperatures, strong light, low carbon dioxide levels, and low water supply. Its importance lies mainly in its reduction of photorespiration.
PT 100 RTD means Resistance temperature detector(RTD) of platinum with 100 ohms resistance at zero degree centigrade.
Tempco's RTD's (Resistance Temperature Detectors) are designed to meet IEC Publication 751, DIN43760, JIS1604-1989 and BS1904-1984. They are normally supplied to Class B, but can be manufactured to Class A as an option.esistance Temperature Detectors (RTD s) are temperature sensing devices consisting of a wire coil or deposited film of pure metal, usually platinum. The element s resistance increases with temperature in a known and repeatable manner.