Chapter 5
Maintenance
Page 5-12
MAN 0494
ill 8704
The ferrule connections
to
the
syringe
and
sample needle
are re-usable between
tube changes, unless they have become damaged - refer to their respective sections.
Measurement block flowcell cleaning
With the measurement block tubing connections removed, the flowcell can then be
removed for cleaning. Follow the process below:
Note:
The measurement block flowcell is a critical optical component. Utmost
care must be taken on all aspects of the cleaning procedure.
1.
Unscrew the sample needle (bottom
) connection first, followed by the
syringe (top
) connection.
ill 8705
2.
Loosen screw
, then with an M3 Allen key, remove the two screws
, and
remove the measurement block top plate
.
3.
Insert a clean 0.45mm interdental brush into the central channel of the flow-
cell.
B
C
A
C
D
E
MAN0494-1 (Zetasizer APS Basic Guide).book Page 12 Friday, August 9, 2013 2:08 PM