Metrohm NIRS XDS MasterLab Analyzer - Manual (Page 45)

▪▪▪▪▪▪▪ 43
The vacuum lifting device is easily controlled by
blocking or releasing the hole on the wand.
Cover the hole to pick up the tablet. To release
the tablet, uncover the hole and the tablet may
be set down.
The height of the projections may be set for the
tablet type in use. For thin tablets, the screws
(4) on the bottom of the tablet unloading tray
may need to be screwed inward, to provide
more lift.
There is a jam nut on each screw. This nut may
require loosening before adjustment. Be sure to
tighten slightly after adjustment, to maintain
the setting.
Various tablet tray styles are available. Please
contact us for custom trays for specific tablets.
It is important that no light “leak” around the
tablet perimeter, as this will adversely affect the
spectral results.
5.8 Iris Adapter
The Iris Adapter is normally used only in reflectance. The reason for this is twofold. First, the tablet
transmission reference, when mounted on the sample carriage, does not leave room for the Iris
Adapter. Second, the Iris Adapter does not provide sufficient light blocking around a tablet, when
used in transmission. Therefore, use the Iris Adapter for vials and other reflectance measurements.