Hitachi CHROMASTER 5160, Instruction Manual

Page: 937 / 1022

4.4 Troubleshooting
4.4.1 Troubleshooting Table
If an abnormal phenomenon is encountered, reference should
be made to the following table.
Table 4-2 Troubleshooting
No. Symptom Cause Remedy
a. Improper measuring
conditions are entered or
operation was wrong.
a. Perform correct operation
according to the message
(Refer to 4.5).
1 Error is
indicated on the
display.
b. Abnormal operation of the
mechanism.
b. Check to see if anything is in
the path of the mechanism.
Also check whether the flow
path is clogged or not.
a. .The liquid leaks. a. Wipe off liquid leakage from the
drain reservoir. Wipe off liquid
leakage from the leak sensor.
2 The liquid leaks.
b. The leak sensor is
contaminated.
b. Wipe off contamination from
the leak sensor.
a. Air is trapped in the flow path
(syringe, tube, etc.). Or the
detergent in the flow path is
not deaerated sufficiently.
a. Repeat the WASH operation
several times to get rid of air.
Fill the flow path with the
deaerated detergent (refer to
3.4.2)
b. The injection port leaks. b. Check the lock nut and
retighten if loose. Or replace
the port seal.
c. The syringe valve leaks. c. Check that the fixing screws
are tightened properly (not
tightened unevenly).
Or replace the valve seal or
stator.
d. The injection valve leaks. d. Check that the fixing screws
are tightened properly (not
tightened unevenly).
Replace the tube seal or stator.
e. The tubing in the flow path
leaks or is clogged.
e. Check the flow path setscrew
and retighten if loose.
Make sure the tip of tube is not
deformed or the ferrule is not
crushed.
f. The syringe leaks or its inside
is contaminated.
f. Check the fixing screw and
retighten if loose. Clean or
replace the syringe or its tip.
3 Reproducibility
of analytical
result is poor.
g. The sample volume is too
small.
g. Increase the sample volume.
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