Chapter 3
System description
3.2.4 Pipetting system
The aspiration and dispensing of samples and reagents is carried out
by two pipetting units with special Teflon coated pipetting needles.
Left pipetting unit
Used for patient samples, controls, sample diluent and calibrators.
The pipetting needle is primed/cleaned in wash station 1 (see Fig.
3.2-1).
Right pipetting unit
Used for reagents. The pipetting needle is primed/cleaned in wash
station 2 (see Fig. 3.2-1).
The pipetting units are software-controlled and automatically
positioned in the appropriate pipetting area.
Note: There is 1 Pipettor on MAGLUMI 1000
Fig. 3.2.4-1: Pipetting needles for left and right pipetting unit are identical.
To ensure correct aspiration, the liquids to be pipetted must
have no foam on the surface!
Clot detection
The left pipetting unit contains a special system allowing clots to be
detected in patient samples. Upon detection or aspiration of a clot ,
the left pipetting unit moves immediately to the left wash station and
the pipetting needle is then primed/cleaned. The pipetting process of
the right pipetting unit is ended for this determination. The system will
automatically start the next determination. In the event of a positive
clot detection, the sample is flagged in the
[Daily Lab-Journal]
as a
machine error (*), the note “failed” appears next to the measuring
result, and the sample must be manually restarted.
Page 3-14
Operating instructions