Abacus
4
Service Manual
24
3. OPERATION OF THE FLUIDIC SYSTEM
This section describes the main fluidic steps of
ABACUS 4
measurement cycle. The
instrument’s Fluidic Schematic is shown in Section 2.2. of this manual. The following figures
show total measurement flow diagram and detailed descriptions of processes for understanding
the fluidic system work.
The following steps are introduced in this section:
1. Flow diagram of measurement
2. Initialization process
3. Sampling process
4. Needle washing process
5. LyseEOS Diluting process
6. MIX/RBC Diluting process
7. Lysing process
8. Counting process
9. Chamber draining process
10. Cleaning process
11. Shutdown process
In the detailed process description figures, the active tube is filled with black color, while an
arrow ( ) shows the direction of the flow. Moving mechanic parts have another arrow indicating
direction of movement. Only opened (On) valves are mentioned in this section while all the other
valves are closed (Off).
ABACUS 4
employs a software waste full checking feature. Software integrates volume of the
reagents used, and gives a message when this volume reaches the preset tank capacity.
