Background Count Is Outside Acceptable Limits - Abbott CELL-DYN 3200 System Operator's Manual

Section 10
CELL-DYN ® 3200 System Operator's Manual
9140181H—October 2001
Table 10.4 Non-Functional Fault Conditions (Continued)

Background count is outside acceptable limits

– – – - Probable Cause – – – –
1. Debris is present in the system.
2. The reagents are cold — less than
° °
59 F (15 C).
3. The reagents are contaminated.
4. Diluent/Sheath filter is dirty.
5. Syringes are the source of
contamination.
6. The Shear Valve is dirty.
Troubleshooting and Diagnostics
– – – - Corrective Action – – –
1. In the second SPECIAL PROTOCOLS
MENU screen, perform an [AUTO
CLEAN] cycle to clean the system.
When the cycle is completed, run a
Background count.
2. Allow the reagents to warm to room
temperature and then repeat the
Background count.
3. Replace the appropriate reagent
according to the directions given in
Troubleshooting Reagent Problems
cited earlier in this section.
4. Replace Diluent/Sheath filter.
5. Clean the appropriate syringe.
6. Clean the Shear Valve. Repeat the
Background count.
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