Maintenance Schedule - Gilson PLC 2050 User Manual

Maintenance Schedule

Gilson recommends performing periodic inspection and maintenance of components
of PLC 2050/2250/2500 Purification Systems to ensure operational performance. the
recommended inspection and maintenance periods are listed below, but are only general
guidelines. the frequency of the maintenance will vary depending on the system usage and
type of sample injected.
NOTICE
follow all guidelines listed in this table to avoid damaging the plC purification System.
Operation
Verify the cleanliness of all liquid containers.
• Clean and rinse the gradient valve and all other switching valves with suitable solution.
• Perform maintenance any time an aqueous solution with strong buffers is used.
• Clean all parts in contact with solvents or samples with suitable solutions. rinse thoroughly
using a mix of water and alcohol.
• Perform maintenance any time an aqueous solution with strong buffers is used.
replace the detector deuterium lamp when efficiency is unreliable.
• Check the suitable tightening of fittings and the proper state of tubing (not kinked, damaged,
etc.).
• Perform maintenance any time solvent leaks or air bubbles are observed.
Check that the fan is operational.
Clean the pump check valves. refer to
Clean the pump piston rods (manually). refer to
Perform maintenance any time the pump head is disassembled.
• Check the efficiency of the detector deuterium lamp. refer to the UV-VIS Detector Service
Guide.
• Perform maintenance any time higher noise levels or decreased sensitivity is observed in the
chromatogram.
Clean the detector flow cell. refer to the UV-VIS Detector Service Guide.
• replace the tubing and associated fittings (except the preformed, SS tubing).
• replace damaged tubing and fittings any time damage is observed.
replace the pump seals. refer to
• replace the pump check valves. refer to
page 65.
• Perform maintenance any time abnormal pressure, flow rate fluctuation, or noisy baselines
occur.
Maintenance Schedule
Clean or replace a pump Check Valve
Clean the pump pistons
replace a pump Seal on page 62
Clean or replace a pump Check Valve
PLC 2050/2250/2500 PurifiCation SyStemS
on page 65.
on page 67.
on
| uSer'S GuiDe
Frequency
Daily
as needed
as needed
as needed
Weekly
monthly
Quarterly
Quarterly
Quarterly
Quarterly
yearly
yearly
yearly
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