Periodic Maintenance; Liquid Leak Check; Washing The Flow Path - Hitachi ChromasterUltra Rs 6270 Instruction Manual

5.2 Periodic Maintenance

5.2 Periodic Maintenance
No.
1

Liquid leak check

2

Washing the flow path

3 Cleaning
4 Waste solution tube
5 Liquid leak sensor
6 Drain tray
7 Wash pump check
5.2.1 Liquid Leak Check
5.2.2 Washing the Flow Path
Part No.
S264000
775-1365
Estimated periodic maintenance is based on full operation of 8
hours daily and 20 days monthly with standard assay.
Check Item
Visually check that liquid is not leaking through any tube.
The flow path should be washed on a periodic basis. Bubbles will
be formed if the flow path between the syringe and needle is
contaminated; these bubbles will adversely affect the analytical
reproducibility of the system.
(1) When using an aqueous detergent
At the end of measurement, wash the flow path with distilled
water. If contamination is heavy, fill the syringe with detergent
and leave it overnight. After cleaning the syringe, rinse it with
distilled water. If the instrument will not be used for a week or
longer, wash the flow path adequately with distilled water and
keep the syringe filled with distilled water. In particular, the
syringe and sample loop should be washed carefully to
remove contaminants. And prevent the inside of flow path
from drying out. If the flow path dries out though
contaminated, decontamination may become impossible.
Table 5-1 Recommended Neutral Detergents
Detergent
Concentration
(brand)
Extran® 20 to 50 times
Rinsing liquid Not diluted
Frequency
Daily
As required
As required
Daily
Monthly
As required
Daily
Precaution
Dilute the detergent with ion-
exchanged water or distilled
water when using phosphorus-
free neutral detergent (Extran
MA03, etc.).
5 - 8
Procedure
Refer to 5.2.1
Refer to 5.2.2
Refer to 5.2.3
Refer to 5.2.4
Refer to 5.2.5
Refer to 5.2.6
Refer to 5.2.7