Hardware features
27
Warning!
Never put fingers into the beaker while the pump/stirrer rotates.
Caution!
Never operate the pump/stirrer at more than half speed with the tank empty.
Ultrasonic transducer
The ultrasonic transducer (not shown) within the pump head is used to help disperse
samples. The power of the transducer and the ultrasonic timer are controlled sing the
Mastersizer Application software.
Warning!
Due to the possible risk of sonication of the blood and its unknown effects,
never place fingers in the beaker when the ultrasonic transducer is in operation.
Ultrasonic transducers have a recommended usage lifetime. Mastersizer's software mon-
itors usage and indicates the status of this in the notification field. When an ultrasonic
transducer warning appears, contact Malvern Instruments to order a replacement.
Note: The Ultrasonics will switch off automatically after 20 minutes continuous
use.
Status indicator
The status indicator shows the operational state of the dispersion unit:
l
Blue — full intensity
The dispersion unit is operating correctly and the cell has been loaded into the
optical bench, i.e. the dispersion unit is “active”.
l
Blue — pulsing
The dispersion unit is operating correctly, but its cell has not been loaded into the
optical bench, i.e. the dispersion unit is at “standby”. If communication has failed
with the optical unit, the dispersion unit will also be on standby, but the optical
unit indicator will be off.
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