Dionex ASE 150, Operator'S Manual

Page: 62 / 176

ASE 150 Operator’s Manual
54
Doc. 065207-02 9/08
3.8 Performing Routine Maintenance
This section describes routine maintenance procedures that the user can perform.
All other ASE 150 maintenance procedures must be performed by qualified
Dionex personnel.
3.8.1 Daily Maintenance
•
Check the gas supply to the instrument.
•
Fill the solvent reservoir, if needed.
•
Perform a rinse cycle. After filling the solvent reservoir, always run
two rinse cycles (see
Section 3.5 ) to clear the solvent lines of air.
•
Empty the waste bottle, if needed.
•
Check for leaks.
•
Pull out the drip tray holder below the waste collection vessel
compartments (see
Figure 2-1 ). If the drip tray contains liquid,
remove it from the holder, dispose of the liquid, and reinstall the tray.
3.8.2 Periodic Maintenance
NOTE The
EXTRACTION COUNTERS
screen indicates the
number of extractions the ASE 150 has performed
(see
Section C.2.5 ).
•
Replace the PEEK seals (P/N 061687, pkg. of 50) inside the cell end
caps after approximately 50 extractions (see
Section 5.2 ).
•
Replace the external O-rings (P/N 049457, pkg. of 50 Teflon O-rings;
P/N 056325, pkg. of 50 Viton O-rings) in the cell end caps and rinse
cells after approximately 50 to 75 extractions (see
Section 5.3 ).
(Viton O-rings are for use in high temperature applications, such as
dioxin extraction.)
•
Verify that the tips of the three needles that extend from the bottom of
the needle mechanism are straight and not damaged or worn. To view
the needles, open the collection vessel compartment door and toggle
the needle switch to the
UP
position (see Figure 3-10 ).