Troubleshooting
Problems during Sample Preparation
Sample doesn’t flow in the chamber
Especially with new (unused) sample chambers you may
encounter an issue with the sample not being completely pulled
through by capillary forces. In this case, it is usually helpful to
lightly tap the chamber on a fixed surface (Fig. 30).
Figure 30. Filling the sample chamber more quickly by lightly
tapping it
Air bubbles in the chamber
Bubbles may form while the chamber is being filled (Fig. 31). This
can often interfere with accurate measurement. In order to
remove any bubble(s), the chamber should be rinsed out (as
described under Maintenance) and then refilled .
Figure 31. Loaded chamber with an air bubble
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