Bio-Rad BioFrac™ Fraction Collector - Manual (Page 16)

1 | Introduction
8 | BioFrac Fraction Collector
Drophead Consists of the drop former, a photodiode cell
for drop counting, and a clear glass tube that
protects the photodiode cell from splashes. The
inlet tubing is connected to the drop former,
which provides uniform drop size. The drop
former accepts 1/4-28 fittings. An optional drop
former is available that has been optimized for
small-volume drop dispensing (25 µl drops).
Diverter valve The diverter valve minimizes spillage during
drophead movement. The BioFrac diverter
valve is designed to have a minimal internal
volume and is 100% flushed in order to
minimize loss of chromatographic resolution.
Lock pin The height adjustment lock pins, located on
either side of the front of the control module,
are used to secure the drophead height.
Feature Description