Luminex 200 System User Manual - Manual (Page 40)

Syringe Seal
WARNING: The syringe arm does not deactivate when changing the
plunger; injury could result if the system is not unplugged.
1. Turn the power switch on the back of the analyzer to the off position.
2. Open the door on the front center of the analyzer to gain access to the syringe. The
syringe is the glass cylinder with a metal plunger inside, shown in the following graphic.
FIGURE 9. Frontal view of a Luminex system with door open and
syringe exposed
3. At the base of the syringe, loosen the thumbscrew by turning it counter-clockwise six
quarter-turns.
4. Turn on the analyzer and immediately watch the syringe pump.
5. Within a few seconds, the syringe arm will go down, then start going up again. As soon
as it begins traveling upward, turn off the analyzer.
CAUTION: Do not turn off the analyzer as the arm is going down. The
syringe pump valve will not be in the correct position, allowing
sheath fluid to drain out of the valve when you remove the
syringe.
6. If the base of the plunger did not come out of the arm when it cycled, loosen the
thumbscrew a little more and very lightly attempt to lift the plunger away from the base. If
the problem persists, contact Luminex Technical Support.
7. Unscrew the syringe from the top of its housing.
8. Pull the plunger out of the syringe.
9. Remove and replace the plunger seal and the black "O" ring.
10. Replace the plunger into the glass syringe.
Luminex ® 200 ™ System User Manual
28
For In Vitro Diagnostic Use