PerkinElmer OilExpress 4, User Manual

Page: 60 / 152

60 . OilExpress 4 System User's Guide
13. The liquid presence sensor detects the presence of the front of the liquid moving
through the tubing from the fill cup, and sensor LED changes from red to green. The
time taken for the liquid to reach the sensor is used by the OilExpress 4 software to
calculate parameters, such as the time required for the FCM to draw the sample into the
flow cell (if required) and the adaptive cleaning settings.
Only 700 µl of sample is dispensed to the cell.
14. When the sample is detected, if required the FCM draws the sample into the flow cell.
15. The sample spectrum is collected.
The autosampler status is
Idle
. The spectrometer status is
Scanning
.
16. The autosampler positions VersaTip 2 over Fill Cup 1.
NOTE: For some low-viscosity samples, VersaTip 1 may remain in Fill Cup 1 until after the
sample scan has been completed.
17. When the spectrum has been collected, the FCM draws the sample to its internal waste
container.
The spectrometer status is
Idle
. The liquid presence sensor LED changes from green to
red.