When {TAIL ~ the capacitive liquid level sensing system} ascertains a desired aspiration position of the probe tip 150 relative to the serum level 152 in the sample tube 15, the sensing system provides a sensor signal to initiate aspiration of a sample of the serum 20 from {HEAD ~ the sample tube} 15 into the probe 12 
When { TAIL ~ the capacitive liquid level sensing system } ascertains a desired aspiration position of the probe tip 150 relative to the serum level 152 in the sample tube 15 , the sensing system provides a sensor signal to initiate aspiration of a sample of the serum 20 from { HEAD ~ the sample tube } 15 into the probe 12
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH