PerkinElmer OilExpress 4, User Manual

Page: 42 / 152

42 . OilExpress 4 System User's Guide
Autosampler Safety Shield and Stop Button
The front of the autosampler is protected by a safety shield. In normal operation, this should
be down before an action requiring the autosampler is initiated from OilExpress 4 software.
After clicking
Start Analysis
, users should only perform actions that require the opening of
the safety shield when prompted to by a message in the software
–
such as when prompted
to load further sample racks or to replace tip boxes during a batch.
Opening the safety shield, or pressing the red stop button on the front of the autosampler,
during an autosampler operation stops the autosampler. A dialog is displayed (Figure 19)
asking you to remove any tips that are fitted to the VersaTips, and then confirm this action
by selecting the
Disposable tips have been removed from the 4-tip arm
check box.
Figure 19 Autosampler suspended dialog
CAUTION
Failure to remove disposable tips from the VersaTips may lead to a
collision that could cause damage to your autosampler.
When you click
OK
, the autosampler will not move until you perform an action in either
OilExpress 4 or WinPREP software. You may need to use the Flush controls on the
Autosampler Control screen to clean and air dry the fluid lines and flow cell, before you start
a new analysis.
WARNING
When the autosampler is NOT in operation (for example, if the FT-IR is
scanning and the autosampler Status is Idle), opening the safety shield
OR pressing the red stop button, WILL NOT pause the autosampler. A
dialog will not be displayed, and the autosampler may move at any time.