Büchi Labortechnik AG
Help with faults | 8
Operation Manual Pure Chromatography Instruments
79/102
8 Help with faults
8.1 Faults, possible causes and solutions (general)
Malfunction Possible cause Solution
The instrument
does not power up
Power is not being supplied to
the system
u Verify that the power cord is
plugged in.
u Make sure that the voltage,
amperage and frequency
meet the instrument
specifications.
u Make sure that both power
switches are switched on.
u Verify that the fuse wire is
not broken and fuses are
correctly installed in the
instrument.
System shuts down
automatically
Major fluctuations in line
power are present
u Connect system to a
Uninterrupted Power Supply
line.
The touch screen is
not responsive
The touch screen is out of cali-
bration
u Recalibrate the touch
screen.
8.2 Faults, possible causes and solutions (cartridge)
Malfunction Possible cause Solution
Cartridge is not de-
tected
RFID tag is not facing the RFID
reader
u Turn cartridge so that RFID
tag faces RFID reader.
RFID tag is bad u Use new cartridge.
8.3 Faults, possible causes and solutions (solvent delivery)
Malfunction Possible cause Solution
No solvent flow Empty solvent bottle u Refill the solvent bottle.
Pump not primed u Prime the pump.
u Remove the check valve and
clean it by sonicating the
check valve in IPA.
u If sonication does not work
replace the check valve with
a new check valve.
Air bubbles in solvent line u Prime the pump.
Pump seals worn out u Replace the pump seals.
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