Specifications

1100 Series LC System
Recommended Maintenance Schedule
Pumps
ITEM TYPICAL SCHEDULE ACTIONS/COMMENTS
P
TFE frits in purge valve Every month Before re-installation of the purge valve, always check the
gold seal and replace if deformed.
Solvent inlet filter Every 6 months Never use the system without a filter installed.
Piston seals, outlet gold seal, Every 12 months When piston seals are exchanged, check the surface of the piston for
plastic cap, wash seal, scratches and deposits. Never re-install a used piston seal.
gasket wash seal
Piston, cartridge active inlet Every 24 months Pistons can be cleaned with alcohol or toothpaste. After exchanging the
valve, outlet ball valve active inlet valve cartridge, pump several mL until the system is stable.
Autosampler
ITEM TYPICAL SCHEDULE ACTIONS/COMMENTS
Guard column Every 100-500 injections Change the guard after 25-50 injections for dirty samples, 100-250
injections for most samples, and 500 injections for very clean samples.
Piston seal, isolation seal, Every 24 months
stator face
Column
ITEM TYPICAL SCHEDULE ACTIONS/COMMENTS
Needle and needle seat, Every 12 months Make sure you use rotor seals of the correct material depending on
rotor seal the operating pH.
Column inlet fittings Every 5-10 column changes PEEK fittings make changing inlet fittings fast and easy. SS fittings are
reliable and can be used at higher pressure.
Detectors
ITEM TYPICAL SCHEDULE ACTIONS/COMMENTS
DAD and MWD Detectors Exchange standard A noisy baseline may indicate it is time to change the lamp. Low light
lamps after 1000 hours. intensity can be caused by a dirty flow cell.
Exchange long-life
lamps after 2000 hours.
Flow cell
Check cleanliness Low light intensity can be caused by a dirty flow cell.
every 6 months
VWD Detectors Exchange lamp Low light intensity can be caused
after 1000 hours by a dirty flow cell.
IFlow cell Check cleanliness
every 6 months