Calomaster
	Plug and Calo with Calomaster
	Calomaster is a new approach to reaction calorimetry that allows you to use existing reactor equipment for heat flow calorimetry. Calomaster monitors changes in temperature between a reactor's jacket and contents to calculate the heat flow via the jacket wall.
	Calomaster is a brick sized unit in a ruggedized aluminum enclosure that mounts in a fume hood or sits on a benchtop. It interfaces either with the reactors circulating bath or its own thermocouples to provide reactor jacket and reactor content's temperature data. Using this temperature data, a real time algorithm makes decisions about the energy flow into the reactor. The temperatures, calculated differential energy, and calculated total energy flow are then charted for viewing during the experiment and logged for further analysis.
	Calomaster tunes itself to your reaction system by means of its autotuning algorithm for simple setup. Viewing and calculation options are accessible at run time via an intuitive touch screen interface. Included PC software allows desktop analysis, archiving, and printing of the calorimetry and temperature data once the experiment is complete.
	Calomaster is ideal for labs doing process scaleup and optimization work where calorimetry data can be acquired in the course of other experiments. Calomaster is also useful for reaction kinetics or safety studies where a dedicated calorimeter is not available. For a cost effective way to add reaction calorimetry to your existing lab equipment, check out the Calomaster today. For more information contact Munyak Engineering.
		Calomaster prototype front view: The enclosure is brushed aluminum for basic chemical resistance and contains all components except a power supply. Note the touchscreen user interface that allows real time display of temperature and calorimetry data. The cable coming out of the box is for attachment to a db-9 serial connection. Below the cable is a 5V DC power supply jack.
		Calomaster real time data charting screen: This is the normal screen seen during operation. The screen acts like a strip chart and shifts the x axis time points periodically forward as data starts to scroll off the right side. Menu items allow changes to the x and y axis scaling, display of event data (an event is an exotherm or endotherm), and tuning parameters. A separate offline data screen shows all the data from the current experiment. The individual data trace colors are user settable from a configuration screen.
		Real time exotherm display: Calomaster has detected an exotherm based on its user settable tuning parameters. The jacket temperature (Tj, pink trace) shows a slight drop in temperature as the controller attempts to maintain the reactor contents (Tr, blue trace) at isothermal conditions. The lower green trace shows the Tr-Tj temperature delta and the darker green trace is the computed Tr-Tj baseline used for determining the energy flux through the jacket wall. The y scale setting of from -10C to 75C prevents greater resolution from being displayed on this chart. To see more detail, the y scale setting could be changed.
		Real time exotherm display, delta energy: This screen shows uncalibrated delta energy during the exotherm. The delta energy is calculated for every temperature point and displayed on the real time chart. The value in the lower right corner is the total uncalibrated energy for this exotherm. Another charting option displays this value versus time. To get calibrated energy values, the electrical calibration heater can be used to correlate a measured temperature differential versus time to a known overall energy value.
		Real time exotherm display, zoomed: The minimum y scale setting has been changed from -10C to 50C to show more detail on the Tj and Tr temperature traces. The chart could also be set to just show the Tr-Tj data trace along with its computed baseline value.
		Event detail screen: An "event" is either an automatically detected or user specified endo or exotherm. The Event Details screen shows pertinent details for each event. Events can be specified as references, such as from a calibration heater, or can be calibrated based on reference events. Qflow represents the uncalibrated energy flow through the wall, while dTr is the overall change in Tr temperature. The U value refers to the calculated overall wall heat transfer coefficient.
		Calomaster desktop analysis software screen: Data from the Calomaster is transferred to a desktop pc for archiving via a memory card. The desktop analysis software can then be used for review, display, and printing of experimental data. It also will reprocess the data with different tuning parameters and manual commands for post experiment studies.
	Munyak Engineering Home