Metrohm 828 IC Dual Suppressor - Manual (Page 37)

3.6 Routine operation
828 IC Dual Suppressor/ 8.828.1003 Instructions for Use
29
When you change the eluent you should first rinse the separation
column without connecting the 828 IC Dual Suppressor. Pump the
eluent through the system for about 5 min.
If you change the eluent type, particularly when changing from a
strong to a weak eluent, then it may take longer to equilibrate the
suppressor.
4 The system is now ready to carry out an analysis
Stop sequence
1 Switch off system
• Shut down the system with Control/Shutdown hardware. On
the 828 IC Dual Suppressor the current to the suppressor cell
and the vacuum pump are switched off.
If the IC Dual Suppressor is to be used again within a few days
then no further measures are necessary.
The following steps are only necessary if the suppressor will not be
used for more than one week.
2 Rinse suppressor
• Before switch-off let the system run with pure water for 15 min
(1 mL/min); the suppressor must be working.
3 Switch off suppressor
• Shut down the system with Control/Shutdown hardware. On
the 828 IC Dual Suppressor the current to the suppressor cell
and the vacuum pump is switched off.
• Switch off the suppressor at mains switch 16.
Seal the inlet of the CO
2
absorber cartridge when the 828 IC Dual
Suppressor is not to be used for a longer period.
4 Storage
These measures are only necessary when the IC Dual Suppressor
will not be used for a long time.
• Remove the connections from the following inlets and outlets:
"To Detector" 7, "From Column" 8 and "To Waste" 12 and
seal them with the original closures supplied with the
instrument.