Scope of application Automatic heat value of petroleum products tester (calorimeter) for electric power, coal, paper, petrochemical, cement, farming, medical research, teaching and other industries and sectors measuring the calorific value of coal, oil and other combustibles Function characteristics 1,instrument configuration ampoule exclusive capsule national standards test for detection of bio-diesel and other light oil volatile, the accuracy is greatly improved. Is an alternative to the calorific value of traditional instrument on the volatile oil sample test results deviation is too large device of choice. (Customer when ordering, please specify the test sample) 2, heat capacity and stability: the use of semiconductor refrigeration and special heating devices, automatic control of the outer cylinder temperature, allowing the system to work at a set temperature point, the circulating water in accordance with the spiral waterway flowing carefully designed to ensure that each point of the temperature difference in temperature to reach the national standard (± 0.1 ℃), so that the outer cylinder and the cylindrical cover form a stable barrier layer between the inner tube and the external environment, to avoid influence of the external environment (such as temperature, air), etc., to ensure that the test results are accurate and reliable. 3,outer cylinder and the inner cylinder of recycled water, the standby tank, thermostat water tank tests are independent of each other, to ensure stable temperature of the outer tube, the outer tube also avoids impurities into the circulating water. 4,using semiconductor refrigeration, reasonable clamshell structure, layout, no complicated transmission mechanism and compressors, equipment operation, low failure rate, low noise.