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5.5 Manual Cleaning Unit (MCU)/ Automatic Cell Cleaning Device
Optional item if fitted.
There are two optional Cleaning Units available. Both allow routine cleaning of the Sample
Glass Tube. They are different in the way they are operated. The Automatic Cell Cleaning
Device is driven pneumatically, while the Manual Cell Cleaning Unit has to be operated by
hand. The cleaning mechanism is identical: a wiper moves through the Sample Glass Tube
and removes deposits from the Sample Glass Tube surface. This unit facilitates cleaning
of the cell without the need of removing the Cell Cap. Regular use of this device can
reduce difficulties in operation of the monitor due simply avoiding of the Sample Glass
Tube and all the inconvenience this can cause.
Figure 5. Automatic Cell Cleaning
Device, pneumatically operated
Figure 6. MCU DH77780 Manual Cell
Cleaning Unit, manually operated
5.5.1 Flow rate regulation on MCU, Auto Clean System
Flow rate is regulated by using a small O-Ring inside the cleaning device. There is a groove
for an O-Ring.
(For more information, see section 10.3 Flow).
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