Aspirating the sample

When a clean pipette is available, the needle assembly goes down and pushes the sample tube over the needles. The necessary blood volume is drawn from the sample tube into a tube (T3) until the blood sensor is triggered.

When the blood sensor is triggered, the piston of the Westergren pipette is pulled up to aspirate the sample into the pipette. During this fill motion the diluter syringe is driving the diluent via the nozzle into the blood stream.

Loep

NOTE:
If the Starrsed ST is set to bidirectional communication with a HOST and ESR measurement is not required for this sample, the message "No ESR!" is shown on the display. The sample will not be aspirated and may be removed from the needle unit.

Aspirating the sample

See Also