Hitachi CHROMASTER 5160 Instruction Manual page 930

4.2.3 Cleaning
4.2.4 Waste solution tube
4.2.5 Liquid Leak Sensor
(2) When using a saline solvent
When a saline solvent is used as a mobile phase, salt may
precipitate in the flow path to clog it or scratch the seal face
of valve. After using such a solvent, wash the flow path
adequately with distilled water.
(3) When using an organic solvent
When the instrument using an organic-solvent mobile
phase will not be operated for 1 week or longer, wash the
sample line adequately with a solvent capable of dissolving
all samples injected into the line and their chemical
constituents, and replace the contents with the organic
solvent.
(1) Clean the wash port periodically. If the port is
contaminated, reproducibility of analytical results may be
degraded and/or carry-over may increase.
(2) Clean the immersion filter for detergent periodically.
(Refer to 5.11) If the filter is clogged, the detergent will not
flow and performance may become poor.
The waste tubes in the system are made of materials having a
high chemical resistance (EPDM: ethylene propylene diene
monomer). For these tubes, however, be careful about use of
solvents such as benzene, chloroform, hexane, toluene, xylene,
THF (tetrahydrofuran) and acids.
If the above solvents are used, periodically check the tubes and
their joints. After shutdown, be sure to wash them with a
solvent capable of dissolving the used solvent.
The Chromaster 5210 autosampler is equipped with a liquid leak
sensor. Refer to the following procedure and perform periodic
operation check to detect liquid leakage correctly.
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