Maintenance 125
Abnormal cuvettes
A list containing abnormal cuvettes is printed as part of the cell blank. The list contains
marks indicating abnormality. Cuvettes on the list are not used for analysis. Abnormal
cuvettes have the following characteristics:
• Cuvettes exceeding the cell standard value (set in the System Parameters System
window) are marked "H" or "L."
• Cuvettes exceeding the cell breakup limit value (set in the System Parameters
Settings window) are marked "N."
• Cuvettes exceeding the skip absorbance value (set in the System Parameters Settings
window) are skipped (marked E), and therefore not used for analysis.
• Cuvettes exceeding the lamp energy voltage limits are skipped (marked U or D), and
therefore not used for analysis.
• Abnormal cuvettes remain registered as abnormal until a future measurement
determines that they can be used.
Reference value
The reference value (the average value of the measurements of all cuvettes) remains the
same until the next measurement.
Cleaning the analyzer and rack handler exterior panels
Materials required:
• Lint-free towel
• 10% solution of bleach (5% sodium
hypochlorite) and water
Time: 10 minutes
Analyzer mode: READY
BIOHAZARD
Wear personal protective equipment.
Use universal precautions.
1. Put the analyzer and rack handler (if applicable) in Standby mode.
2. Turn off the 30-A power switch at the back of the system.
WARNING
Turn off the main power switch at the back of the analyzer, to avoid catching the
toweling in the cooling fans.
3. Close the analyzer cover.
4. Prepare a 10% solution of bleach and DI water.
5. Dampen lint-free towels with the solution and wipe the following exterior surfaces:
• top cover
• side panels
• front panel
• bear panel using deionized water, wipe the exteriors again.
6. Turn on the 30-A power switch at the back of the system.
7. Return the system to the Operating mode and the rack handler to the ON mode (if
applicable).
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