"1 measurement range: 1600-32000 kcal / kg 2. To ensure the measurement precision, relative standard deviation: < 0.2% absolute error: for cement raw material: parallel error is less than or equal to 63 kJ / kg (15 kcal / kg) and coal: parallel error is less than or equal to 125 kJ / kg (30 kcal / kg) 3 of time: usually 12-15 minutes, which is less than 18 minutes 4 conditions of use: ambient temperature 2-39 degrees Celsius, relative temperature < 80%; power supply 190-240v, 50Hz best ambient temperature 20 degrees C ~ 30 C 5 instrument power consumption: < 50W 6 instrument dimensions: 37 * 39 * 50cm; microcomputer controller 16 * 33 * 37cm; pressure reducer 14 * 15 * 20cm. PRODUCT FEATURE Dy-4000 type series multi heat meter not only solve the original heat determination instrument operation is complex and demanding environment, problem of high failure rate, but also solve the raw determination of calorific value of ignition due to the difficult, high precision problem