SMOOTHED THERMOCOUPLE TABLES OF EXTENDED SIGNIFICANCE (°C) Volume 2 SECTION 2.3 CHROMEL-ALUMEL THERMOCOUPLESFigure 1, a plot of the difference in microvolts between the values in the smoothed table and those in the original table vs temperature, illustrates how the values in the smoothed table ...
Table 10.3. Properties of Selected Thermocouple Materials ThermocoupleSensitivity μV/°C (@25°C)Operating Range (°C) Chromel/Alumel 40.6 −270 to 1,300 Copper/Constantan 40.9 −270 to 600 Iron/Constantan 51.7 −270 to 1,000 Chromel/Constantan 60.9 −200 to 1,000 The small size,...
Overview Originally developed in 1906, the Chromel/Alumel thermocouple has been globally accepted as the most useful base-metal thermocouple combination. With the standard alloys, or one of several special alloy combinations, it is widely used over a temperature range of -328°F to +2300°F (–...
The furnace temperatures were determined by a PPIO/0 second-class standard thermocouple with an error of up to 0.1~ The life of the wires was estimated from a "live cross section," i.e., by the presence of the metal base, and was taken to be the time before through ionization. A ...