PyroTec™ PRO Hardw are User’s Manual, V1.2
47
RT-MN024-1.2 02/21
Limits of the
Clot Detection
The following critical situation may occur if the sample has not been centrifuged properly.
Sample not completely
aspirated
A – Theoretical liquid level after
aspiration.
1)
There are floating particles in the sam-
ple. The tip aspirates liquid.
2)
During aspiration (in the worst case
shortly before the end of the aspira-
tion process), a particle clogs the tip
(see arrow).
The liquid surface is expected to be at
level (A) after aspiration.
3)
The tip retracts and the exit signal ap-
pears within the limit (L).
No error message will be generated though
the tip is clogged.
Though a certain amount of liquid has been aspirated, the expected difference of the liq-
uid surface level before and after aspiration is too small for proper functioning of the clot
detection.
IMPORTANT
For that reason it is very important that the samples are properly centrifuged and handled
carefully to avoid floating particles.
5.4.3 Lower DiTi Eject Option
The lower DiTi eject option enables disposable tip ejection at a lower position.
With the optional cover DiTi waste and the DiTi waste slide, it reduces risk of projection
from elevated positions and thus minimizes contamination risks.
The rocker spreads over the corresponding number of tips.
5.4.4 Carriers and Racks
What Are
Carriers and
Racks?
Carriers are supports that hold racks - which contain tubes or other containers and are
placed at precisely definable positions on the worktable.
Example of typical carrier/rack/container assembly
A
Carrier (can slide on worktable)
B
Rack (here: Tube rack)
C
Container (here: Tube)
