PyroTec™ PRO Hardw are User’s Manual, V1.2
46
RT-MN024-1.2 02/21
If There Is a
Clot Detected
The clot detection generates an error message during retraction of the tip in two situa-
tions. In both situations, a clot sticking to the tip or clogging the tip is the most possible
cause for the non-appearance of the exit signal within the limit.
Clot Sticking to
the Tip
Situation 1:
A clot sticking to the tip may be the cause for the delayed exit signal.
Clot Detected
1)
The tip is beyond the limit (L) and
there is still no exit signal.
2)
When the exit signal appears, the
tip is out of the limit.
An error message will be generated.
Expected
Volume not
Aspirated
Situation 2:
Alternatively, a clogged tip or other problems may be the cause for the fact that no or too
little liquid is aspirated.
No liquid aspirated
1)
There is an attempt to aspirate liquid,
but the liquid level remains the same
(e.g. because the tip is clogged).
The liquid surface is expected to be at
level (A) after aspiration.
2)
The tip retracts and there is no exit sig-
nal within the limit (L).
An error message will be generated.
This error situation is only given when larger volumes in relation to the geometry of the
vessel are to be aspirated. At very low volumes the expected difference of the liquid sur-
face level before and after aspiration is not sufficient for the detection.
A
Theoretical liquid level after aspiration
