Abbott CELL-DYN 3200 System Operator's Manual page 581

Section 13
Sample Identification
CELL-DYN ® 3200 System Operator's Manual
9140181H—October 2001
Each rack must have a legible bar code label. If a rack has no bar code label or if
the label cannot be read by the Bar Code Reader, the Sample Loader stops, and the
message Loader Fault 153: rack barcode read failure is
displayed on the bulletin line. No samples have been aspirated at this point.
The rack bar code label identifies each rack by number. The system tracks the rack
number and tube position for each sample placed in the rack from the bar code
reader signal.
The Sample Loader provides sample identification using an LED-based Bar Code
Reader at Station 3 (tube spinning/aspiration). As each tube reaches Station 3, the
sample tube is rotated and the bar code reader is turned ON to read the bar code
label on the tube. If no bar code label is present or the label is unreadable, the
sample is identified by the rack number and tube position, in the format RxTx, on
the RUN screen and in the DATA LOG.
Operation of the Sample Loader with non-bar-coded samples is allowed. However,
the use of bar code labels is recommended for positive sample identification. Refer
to Section 5: Operating Instructions; Subsection: Using The Work List for a
discussion of using the Work List with and without bar code labels for sample
identification.
Normally, non-bar-coded samples should not be removed from the racks until all
samples have been processed since the rack and tube number of each sample is
important for positive sample identification.
If the rack being processed (under the Tower Cover) must be removed before
processing is completed (for example, the system must be re-initialized to clear a
Fatal Fault condition), make a note of which tube was under the Aspiration Needle
before removing the rack. Follow the guidelines below:
1. Make sure the Sample Loader has stopped and the Aspiration Needle has
retracted. Remove the Tower Cover if necessary.
2. If a fault occurred, correct the situation and press [CLEAR FAULT].
3. If bar code labels are used for identification:
a. Check the Work List to determine if the entries corresponding to the
processed samples have been deleted, indicating a match occurred and
the data was sent to the Data Log. It is permissible to remove those
samples before returning the rack to the starting position.
b. Move the remaining tubes to the front of the rack and place the rack in
the starting position.
c. Go to step 5.
4. If rack and tube numbers are used for identification:
a. Check the Work List to determine if the entries corresponding to the
processed samples, based on rack and tube number, have been deleted,
indicating a match occurred and the data was sent to the Data Log. It is
permissible to remove those samples before returning the rack to the
starting position.
Sample Loader
13-17