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4.10 Basic Functions
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The vial cassettes rotate clockwise for positioning and sample collecting.
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The Holder for Single Cannula maneuver the cannula into one of two
collection positions, an inner and outer position.
•
The Holders for Dual and Quadruple cannulae have fixed positions for 2
(dual), 3 or four cannulae (quadruple).
•
The vial cassettes are maneuvered to the low position for the change of
collecting vials.
•
The vial cassettes are in upper position for collecting sample(s).
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When the vial cassettes are lifted to the high position, fractions are
collected directly in the bottom of the vials. In this way, a very high
degree of precision is achieved and fractions smaller than a falling
droplet can be collected in a reproducible manner. When fraction are
collected in vials fitted with a septum, some of the liquid may be lost
against the septum upon withdrawal of the piercing needle such that the
quantity collected in each vial may vary depending on the rate of flow.
Change of fractions is controlled by time intervals, or by external signals.
•
The cassette magazine is temperature-controlled by means of a
thermoelectric cooler with a fan.
4.11 Safety Devices
Keep finger and other objects away from moving parts in the cooling
compartment. Be careful when handling cannulae and collecting accessories.
WARNING:
Moving parts can cause injury and/or damage the collector.