CELL-DYN
®
3200 System Operator’s Manual
13-15
9140181H—October 2001
Section 13
Sample Loader
Figure 13.8 Rack Movement
Mixing and Aspiration Stations
A pneumatic-actuated mechanism advances the rack one position at a time through
the mixing and aspiration stations. As the rack advances through the Mixing
Stations, sensors detect if a tube is at Mixing Station #1 or Mixing Station #2.
If a tube is detected at either station, the Mixer descends, grabs one or both tubes,
and mixes for approximately 40 seconds. Each tube is mixed twice, once at each
mixing station. After being mixed at the second Mixing Station the tube advances
to the Aspiration Station where it is vented and aspirated.
When the 6th tube is at Station 3 (aspiration), the next rack on the load side is
pushed forward in preparation for processing. Racks continue moving to the
preparation position until either the load side is empty or the unload side is full.
After the last tube in a rack has been processed, the rack continues moving until it
reaches the left edge of the Sample Loader. At this point, the rack is pushed to the
most forward position of the unload side to make room for the next racks.
1 Rack Advance
2 Unload Side
3 Racks are pushed
away from the
Analyzer
4 Load Side
5 Racks are pushed
toward the Analyzer
6 Aspiration Needle
7 Mixing Block
8 Station 1
9 Station 2
10 Station 3
11 Bar Code Reader
1
1
4
2
3
5
6
7
8
9
10
11
