Troubleshooting Table - Gilson PLC 2050 User Manual

Troubleshooting Table

the following table details some basic symptoms, possible causes, and potential solutions
for issues related to PLC 2050/2250/2500 Purification Systems. if the problem persists
after all remedies have been attempted, contact Gilson customer service. refer to
Customer Service on page 19.
SymPtom(S)
Leakage or air bubbles.
The pump makes
abnormal noises.
Inaccurate or irregular
flow rates.
Lack of solvent suction.
Inaccurate gradient
forming.
Abnormal pressure
fluctuation.
Noise on the data system.
Abnormal overpressure.
Leakage near the pump
heads or cleaning discs.
72
troubLeShootinG
Fluidics and Pumping
PoSSibLe CauSe(S)
The fittings are not
sufficiently tightened.
The motor or motor
driver is damaged or not
properly installed.
The system belt or pulleys
are damaged.
The fittings are not
sufficiently tightened.
Improper state of tubing
or fitting.
The fluid path is partially
or totally blocked.
The piston rods are dirty.
The pump piston seals are
worn.
The pump check valves
are dirty or damaged.
The pump check valves
are dirty or damaged.
Improper state of tubing
or fitting.
The fluid path is partially
or totally blocked.
Worn pump piston seals.
|
PLC 2050/2250/2500 PurifiCation SyStemS
remeDy
Tighten the fittings.
Stop the pump.
Switch off the system.
Tighten the fittings and
check the state of the tubing.
Replace the fittings and/or
the tubing, if damaged.
Clean the fluid path.
Check and/or clean all parts
in contact with solvents or
samples (gradient valve,
piston rods, seals, check
valves, etc.). Replace the
consumable parts (seals,
check valves, etc.), if
damaged.
Check and/or clean and/
or replace the pump check
valves.
Determine the overpressure
location by isolating
different parts of the fluid
path.
Check the state of tubing.
Replace the tubing, if
damaged.
Clean the fluid path.
Replace the pump piston
seals.
referenCe
Refer to page 57
Refer to page 60.
Refer to page 59.
Refer to page 65.
Refer to page 60.
Refer to page 62.
Continued on Page 73