Instruction Manual

Operating with VR NxT
VR NxT| Instruction Manual 1.0 02-2019|VRNXTinstr1EN|© 2019 Menarini Silicon Biosystems SpA 31
4. At the end of the program, open the rotor chamber.
NOTICE: Do not open the rotor chamber while the program is running and the status LED is steady.
5. Move the closed holder in the holder rack.
6. Close the rotor chamber.
7. Move the holder rack with the closed holder under the biosafety cabinet class II.
8. Push the bottom of the holder clips to open the closed holder.
9. Lift the cap and throw it in the biohazard waste disposal container.
NOTICE: To avoid the liquid leakage, handle the cap with care.
Note: A small liquid drop may be present out of the tube (e.g. see the image below). In this case, the output volume is
guaranteed anyway.
10. Take each tube with the tweezers (see "Remove the tubes from the holder" on page22), move it to a common tube
storage rack and close it (see "Close the removed tubes" on page22).
Stop the volume reduction process
Stop manner and consequences
NOTICE: When you stop a process prior to completion, the volume reduction could be insufficient.
During sample processing two kinds of stops are possible: the controlled stop and the quick stop. After both stops, the
sample recovery procedure must be performed (see "Recover the samples" on the next page).
The stop manner characteristics are the following:
Stop
manner
When it is necessary What happens Consequences
Controlled
stop
You realize the samples in the closed
holder have not been prepared
properly.
The rotor slows down gently and
stops with the closed holder in
the correct position.
Samples are preserved and the
closed holder can be easily
removed.
Quick
stop
l A malfunction occurs (for
example, the instrument jumps or
makes a strange noise).
l You notice an anomaly in the
rotor chamber (for example, the
closed holder opens
accidentally).
The rotor stops immediately
with the closed holder in its
current position.
If the closed holder is in a wrong
position, it cannot be easily
removed.
The instrument will try to move
the closed holder in the correct
position at the next start.
NOTICE: Sample could be lost.