Luminex MAGPIX Installation and Hardware User (IVD) - Manual (Page 63)

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Operational and Maintenance Procedures
4. Clean the sample probe using either a bath sonicator or a 10 mL syringe. If you are
using a bath sonicator, place the tip of the sample probe in the bath sonicator for 2 to 5
minutes. If you are using a syringe, force distilled water through the tip of the sample
probe to its large end. This dislodges any debris clogging the tip.
5. Replace the sample probe and tightly screw in the probe fitting.
6. Use the software to perform an automatic probe height adjustment.
NOTE: Perform an automatic probe height adjustment any time the probe
is reinstalled after removal.
Performing a Visual Inspection
Inspect MAGPIX weekly. Make sure the instrument is idle, so there are no moving parts.
Open the MAGPIX side access door and fluid compartment door and visually inspect for
leaks, corrosion, and other signs of improper function. Check all visible tubing
connections.
Calibrating and Verifying MAGPIX
Calibration, with a follow-up verification, is another weekly procedure that can be
performed using the xPONENT for MAGPIX software. Refer to the Luminex IVD
xPONENT for MAGPIX Software User Manual or online help for instructions.
Removing Clogs
If you frequently use MAGPIX to test concentrated serum or other debris-ridden samples,
Luminex recommends that you perform a clog removal routine weekly. Otherwise, you can
perform this procedure as needed. See Luminex IVD xPONENT for MAGPIX Software
User Manual for instructions. Run the alcohol flush command, substituting sodium
hydroxide (NaOH) for alcohol.
To remove clogs:
1. Replace the alcohol in the alcohol well of the off-plate reagent block with a 0.1N
sodium hydroxide solution.
2. Run the alcohol flush command.
WARNING: Sodium hydroxide is extremely caustic. If it comes into contact
with skin, it can burn and cause tissue damage without causing
pain. Always wear gloves and goggles when working with sodium
hydroxide.