Hardware features
16
Sample pump and stirrer
The pump and stirrer keep the sample in suspension and continually circulate the sample
and dispersant through the wet cell.
The stirrer, located in the middle of the tank, agitates the sample/dispersant mixture to
make sure it is adequately dispersed before a measurement. The pump in the base of the
tank circulates the sample through the wet cell located in the measurement area of the
optical bench.
The pump and stirrer speed is controlled by the Mastersizer software.
Warning!
Never put fingers into the tank when the pump/stirrer shaft is in operation.
Caution!
Never operate the pump/stirrer at more than half speed with the tank empty.
Ultrasonic transducer
The ultrasonic transducer helps disperse samples. The power of the transducer is con-
trolled through the Mastersizer software.
Warning!
Due to the possible risk of sonication of the blood and its unknown effects,
never put fingers in the tank when the ultrasonic transducer is in operation.
Ultrasonic transducers have a recommended usage lifetime. The Mastersizer software
monitors this usage and will indicate, in the notification field, when the ultrasonic trans-
ducer is near to, or has reached, its recommended usage time. When an ultrasonic trans-
ducer warning is shown contact your Malvern representative for information on how to
order a replacement transducer.
Note: The Ultrasonics will switch off automatically after 20 minutes continuous
use.
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