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Introduction
One of the DryVap™ Concentrator System’s versatilities is that it can run a different method for each of its six stations simply by selecting the run conditions on the Master Control Panel, placing a sample into the station, then pressing the start button for that station.
NOTE: If you are running multiple methods concurrently, or the DryVap system is being shared with more than one operator, care must be taken to keep track of the master control settings that each sample is processed on, as the front panel information for the method cannot be verified once the Master Control knobs have been changed. This information is not lost to the user and can be obtained through the serial port connection of the DryVap system.
Additional Systems Optimization Information
In addition to displaying the Master Control settings and Station States, the System Monitor tab reports the running time duration for the Dry, Heat and Sparge States of a sample run, along with the total time for processing the sample, when the Finish State is reached. Understanding the typical processing time for sensor tripped states (thermocouple for the heat state and optical endpoint sensor in the sparge state); the user will know when to take action to correct abnormally long running states. For example, if the duration time of the sparge state doubled, the user would check the performance of the parameters effecting evaporation during the sparge state. (Vacuum and nitrogen gas flow).
Sparge Heat Indicator Lights
Sparge Heat is an immersion heater feature that is incorporated in the run method through the DryVap software (DryVap Programmer). Sparge Heat can be considered to be a target temperature heat mode and is used primarily to speed up evaporation of the solvent during the sparge state. Sparge Heat can also be in place of the heat power settings and used as target temperature warming of a sample when boiling is not desired. In DryVap Monitor there is a Sparge Heat indicator light for the Sparge State and also for the Heat State.
Action and Error
DryVap Monitor’s System Monitor tab also displays any user interaction such as PAUSE, RINSE or CALIBRATE and any Error Conditions like OVER TEMP and, TIME OUT or ABORT.
Conclusion
The System Monitor tab from DryVap Monitor provides comprehensive system status and activity at a glance.
Using a Direct to GC Vial concentrator tube with the DryVap saves time and improves recoveries. The Direct to GC Vial eliminates the transfer step from concentrator tube to GC vial, minimizing sample loss and improving recoveries. 