The ANTECH CHF400 Series Precision Twin Cell Sample Calorimeters feature a thermostatically controlled calorimeter body that houses two identical cylindrical or rectangular cells, one “sample” and one “reference”. Both cells have the same construction and the same heat transfer properties. The CHF400 Series are available in a variety of volume sizes:
Model CHF400-0780: 7.8 litre chamber
Model CHF400-1500: 15 litre chamber
Model CHF400-2000: 20 litre chamber
Model CHF400-2500: 25 litre chamber
Model CHF400-5300: 53 litre chamber
Model CHF400-6000: 60 litre chamber
Model CHF400-7200: 72 litre chamber
The ANTECH CHF400 Series Heat Flow Calorimeter is a comprehensive non-destructive assay system for the high accuracy measurement of heat output. The system consists of a single trolley, onto which dual chambers are mounted, constructed of enclosing boxes of aluminium plate and insulation panels to provide a highly thermostatically controlled measurement region. A plug extraction carriage allows for the easy loading of samples into the system, with an ergonomic design and mode of operation. An operator PC is mounted on the end of the instrument trolley, along with an electronics enclosure containing all power and control electronics.
When a sample is added, an array of thermopile temperature sensors measure the difference between the temperature of the sample cell and the temperature of the reference cell across a common reference point.
Differential measurements are made by measuring the temperature increase in the sample cell in comparison with that of the reference cell. The differences in temperature are directly related to the heat generation rate of the sample. Coupled with the large amount of thermal insulation, this method significantly reduces variations due to ambient drift and increases the sensitivity of the system. The high sensitivity of the systems provides the calorimeters with excellent low levels of detection.
A local computer or optional built-in PC displays the temperature data of the two cells in real time and records the data for further analysis. Remote data analysis can be carried out via an Ethernet link. The software also predicts when the system will return to equilibrium and finish the measurement to enable time-efficient measurement planning and effectively reduce measurement time. The system is mounted in a self contained, fully mobile unit for easy transportation but can be securely locked in place for the duration of the measurement process.