The general application range of the type B thermocouple temperature sensor is 870-1700 ° C (1600-3100 ° F). It is recommended to use it in a clean air. Generally speaking, the combined thermocouple used by platinum and platinum alloy, gold or crickets is considered the most copy of all types of all types. They are antioxidant in the air and can use very high temperatures due to their high melting points.
Type B can resist the growth of grains than type R or S, which may cause mechanical failure. In some cases, the calibration drift of the B -type sensor may also be smaller than the calibration drift of the R -or -S type temperature sensor.
Type B sensor can be used within a short period of vacuum and is commonly used in melting glass applications. It is also widely used in the steel industry to monitor temperature and chemistry's entire steelmaking process.
Type B thermocouple temperature sensor cannot be used to reduce the atmosphere, nor can they be exposed to non -metal or metal vapor. This sensor is vulnerable to pollution. Reducing atmosphere is particularly harmful to calibration. The precious metal thermocouple should always protect the conditions of the gas -density ceramic tube, the second tube's alumina, and the condition of the silicon carbide or metal external tube. This model is not suitable for directly inserting the metal protection tube.
One feature of the type B thermocouple temperature sensor is that their electric output is very low, so it is rarely used below 600 ° C. Since the output can almost ignore the high 50 ° C, the cold terminal compensation usually does not require this type.