Hitachi CHROMASTER 5160, Instruction Manual

Page: 354 / 1022

4.3.2
4.3.2 Periodic Maintenance/Checkup
For ensuring reliable routine operations through prevention of a
trouble, periodic checkup must be carried out, referring to Table
4-1. This table lists the items of periodic maintenance/checkup.
Table 4-1 Periodic Maintenance/Checkup
No. Check Item Interval Check Procedure Remarks
1 Drain tray Every day Before analysis, check the drain
tray for contamination. If dust or
contaminant is stuck to the tray,
cleaning is required. Dust or contaminant
on the drain tray may
cause the leak sensor
to malfunction.
2 Lighting of
lamp
Every day Check that the “D2 LAMP” LED is
lit.
3 Check for
absorbance
Every day Activate the auto zero function
and check if ABS indication
becomes zero.
4 Life of light
source lamp Every month 1) Judge whether the lamp has
reached the end of its service
life by checking for poor
energy and for arrival at the
maximum allowable total ON-
time.
2) Judge whether the lamp has
reached the end of its service
life by checking for significant
baseline fluctuations
(excessive drift or noise).
See 4.4.2.
5 Wavelength
accuracy
Every year Check each wavelength using the
bright lines at 486 and 656 nm of
the D
2
lamp and the bright line at
254 nm of the Hg lamp.
Refer to 4.4.1.
4 - 9