Hitachi CHROMASTER 5160 Instruction Manual page 130

No. Symptom
7 Liquid doesn't flow.
8 A leak error occurs
Cause
1) Looseness of the piping joint.
2) Clogging of the solvent filter.
3) Negative pressure depending on
the position of the solvent bottle.
4) Impurities or clogs in the flow
path.
1) The liquid leaked.
2) Dirt attached to the leak sensor.
NOTE: The whirring sound of the pump during operation varies
depending on such operating conditions as flow rate
and pressure. Although the whirring sound may
become larger anywhere in the high-pressure range, it
is not a symptom of abnormality.
4 - 14
Measure
1) Tighten the joint manually.
2) Wash the solvent filter.
3) Place the solvent bottle in
the same height as the
instrument.
4) Wash the piping, the mixer,
and the inside of the
degassing unit enough.
When using the solution
which is salt-induced
precipitation type, wash with
distilled water enough, and
replace with the target
solvent completely.
1) Clean up the leaked liquid
in the drain tray. Wipe the
liquid attached to the leak
sensor off. Readjust the
height of the leak sensor
(refer to 4.2.1).
2) Wipe the liquid attached to
the leak sensor off.
Readjust the height of the
leak sensor (refer to 4.2.1).