Combustion vessel CAL4K-4

This new bomb vessel was introduced in 2022 and incorporates the latest technology in electronic temperature sensing and mechanical design. It is compatible to all 3K-4 and 3K-5 bomb vessels, but it is just a little smarter. It has a new Thread locking mechanism for easy closing and sealing, and it has temperature sensors and smart electronics sealed into the base and walls. The vessel is completely removable for easy sample management, cooling, cleaning and maintenance. The vessel body is stainless steel (on request 316 for halogen) and a pressed on aluminium sleeve which acts as a heat sink and temperature equalizer. This sleeve performs the task of the traditional water and stirrer. The mass of the new 4K-4 vessel was increased by 30% which results in higher energy release of samples. The 4K-4 vessel can be used in any of the DDS calorimeters and coolers for effective routine sample determination. The speed of a determination depends on the type of calorimeter it is used in, the cooling method, the number of vessels, and other system variables. The sensors are embedded in the vessel walls. The electronics are located in the bottom of the vessel and are vacuum encapsulated to prevent any liquid or dust from affecting the temperature measurement. The temperature is measured with platinum sensors, which are near linear, and the readings are linearised to become absolute linear. This is a major advantage as the vessel can be fired at any temperature and remains perfectly calibrated. The temperature measuring range is 5 to 70 Celsius. A typical determination rises the vessel temperature by approximately 10C.