The Bruker MAS sample changer is designed to allow the acquisition and processing of MAS data from up to 20 samples without operator intervention. The sample changer is mounted on top of the sample transfer tube and controlled via the insert and eject pneumatic lines of the MAS controller. To install the device, remove the upper sleeve of the sample transfer tube and place the sample changer on top of the tube. Connect the air lines as indicated in figure 3.4.
The
rotors are stacked in the sample changer (with the rotor caps upward) and
after ejection are gathered in the collection tray. The rotor collection
tray may be removed and emptied, and additional rotors may be inserted
into the sample changer while the system is in operation, allowing
for indefinite operation with only infrequent operator intervention. In
order to distinguish the samples, numbered rotor barrels are available.
Figure
3.4. Installation of the MAS sample changer.