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Thermocouple sensors are designed for measuring temperatures in dangerous or harsh environments in heavy industries such as petrochemical and metal processing. Other uses for the thermocouple sensors
apart from manufacturing and industrial purposes include the cryogenics field, superconductor research & development, semiconductor development and scientific research.
Different thermocouple types (e.g. K, T, N, J, etc) are made from different combinations of metals. For example, a J Type is made from Iron and another slightly different copper-nickel alloy and the K Type thermocouple has a Nickel-Chromium positive conductor and a Nickel-Aluminum negative conductor.
The AKCP J and K Type thermocouple adapters are specially designed for not only connecting the AKCP K Type Thermocouple
temperature sensor to the securityProbe and securityProbe 5E base units, but also allow you to integrate other J and
K Type thermocouple sensors into these base units.
When the AKCP Thermocouple sensor, or any other J or K type sensor is plugged into either type adapter and the RJ-45 LAN cable is connected to the Intelligent Sensor port on either the base unit or the E-sensor8 expansion module, the base unit will auto detect the sensor. A built-in graph option is included on all securityProbes for graphing temperature variations over a period of time.
A thermocouple is a temperature measuring device consisting of two conductors of dissimilar metals or alloys that are connected only at the ends. When the ends are at different temperatures, a small voltage is produced in the wire that can be related directly to the temperature difference between the ends. If the temperature at one end is known, the temperature at the other end can be determined.
Thermocouple wire or extension grade wire is used to connect the thermocouple to the sensing or control instrumentation. The conditions of measurement determine the type of thermocouple wire and insulation to be used. Temperature range, environment, insulation requirements, response, and service life should be considered when selecting a wire type. There are two common types of thermocouple wire, Type J and Type K.
Type J (Iron/Constantan™)
Type J thermocouples are used in vacuum, oxidizing, inert or reducing atmospheres. Iron element oxidizes rapidly at temperatures
exceeding 1000°F (538°C), and therefore heavier gauge wire is recommended for longer life at these temperatures.
Type K (Chromel™/Alumel™)
Type K thermocouples are used in oxidizing, inert or dry reducing atmospheres. Exposure to vacuum is limited to short time
periods. Must be protected from sulfurous and marginally oxidizing atmospheres. Reliable and accurate at high temperatures.
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