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Theory of Operation
ALS Thermostat Operation
underneath the special sample tray where it is evenly distributed and streams
back into the sample tray area. From there it is again drawn into the ALS
thermostat. This “recycle” mode assures a very efficient cooling/heating of
the sample vials.
In cooling mode the opposite side of the Peltier element will become very hot
and to maintain the performance of the elements they have to be cooled
down. This is done with large heat exchangers in the back of the ALS
thermostat. Four fans blow air from left to right through the instrument to
remove the heated air. The fan speed is controlled according to the
temperature of the Peltier elements.
During cooling condensation will appear in the heating/cooling module. The
condensed water will be guided out of the ALS thermostat.
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