Bio-Rad BioFrac™ Fraction Collector - Manual (Page 59)

Advanced Collection Screen
User Guide | 51
Advanced Collection Screen
The Advanced Collection screen is used to turn threshold and windows collection
on or off and to set threshold and delay parameters (see Figure 20 , Table 15 , and
Table 16 ). Threshold parameters are displayed only when threshold is turned on.
From this screen, the threshold level and UV detector input voltage (100 mV or 1 V)
can be entered and the user can specify whether non-peak fractions are to be
collected or not. A bubble filter time constant can also be entered. During threshold
collection the bubble filter function suppresses unwanted fraction advances due to
air bubbles passing through the UV detector. See Appendix A, Bubble Filter Time ,
on page 83, for more information about the bubble filter function.
When windows collection is turned on, the Table function key, F3, is used to display
the Collection Windows Table screen (see Collection Windows Table Screen on
page 54 ). The Collection Windows Table screen is used to enter all collection
windows parameters. If you are collecting by threshold and windows, turn on
threshold before entering the Collection Windows Table screen.
Fig. 20. Advanced Collection screen.
Table 15. Advanced Collection screen parameters
Parameter Function
Windows Menu for turning Collection by Windows on or off.
Threshold Menu for turning Collection by Threshold on or off.