Siemens ADVIA 2400 - Inspecting and cleaning the mixing rods and mixer wash cups

Maintenance 107
Inspecting and cleaning the mixing rods and mixer wash cups
Materials required:
• Lint-free towel
• Deionized water
• Cotton-tipped applicators
Time: 5 minutes
Analyzer mode: STANDBY
BIOHAZARD
Wear personal protective
equipment.
Use universal precautions.
Figure 5-3. Mixing rods
1) Dilution Mixer
2) Reagent Mixer 1
3) Reagent Mixer 2
1. Visually inspect each mixing rod and mixer wash cup for cleanliness.
2. Clean any dirty mixing rods or wash cups to avoid contamination of the mixers
which results in carryover:
a. Set the analyzer to Standby.
CAUTION
Do not use excessive force while cleaning, to avoid bending the mixing rods.
b. Holding the mixing rods in one hand, wipe each rod with lint-free towels
moistened with deionized water.
3. Inspect the mixing wash cups for cleanliness, then clean if dirty:
a. Pour deionized water into the mixer wash cup.
CAUTION
Do not apply excessive force while cleaning, to avoid damaging the sensor.
b. With a lint-free towel and foam-tipped applicator, clean the mixer wash cup.
4. After cleaning, ensure that no threads or fibers are left on the mixing rods.