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4 Maintenance
This section contains instructions on how to clean the sample chamber when a sample
is spilt, how to run the performance check to see if the instrument is operating normally,
and on replacing consumables.
Give consideration to the environment in which the instrument is to be operated. Keep
the instrument and surrounding area clean so that the spectrophotometer may be used
in a stabilized condition over a long period.
Note1: The operating procedure varies with the type of instrument. Operation is
described by instrument type. Read the portion relevant to your instrument.
Note2: It is recommended that the validation program (optional) is used for the
performance check.
4.1
Cautions for Routine Operation
(1)
Before operating the instrument, allow the instrument to warm-up for at least 15
minutes after turning the power on.
(2)
Do not place anything on the instrument.
(3)
When measurement is complete, remove the sample from the sample chamber.
4.2
Cleaning the Sample Chamber
If a sample is spilt in the sample chamber, quickly wipe up the spillage with gauze or
similar material, remove the sample chamber, and clean it using the following
procedure.
CAUTION:
Use ethanol to clean the sample chamber. Do not use other types of
organic solvent as this may remove the instrument paint.
(1)
Removing the sample chamber
a) Open the sample chamber lid and loosen the two fixing screws on the front
underside of the sample chamber by hand (see Fig. 3.1 or Fig. 3.3).
b) Pull the sample chamber toward you a little and lift to remove the sample
chamber holder along with the cell holders.
(2)
Cleaning the sample chamber
<<
When the sample is soluble in water
>>
Wipe up the spilt sample with gauze or similar material. Remove any trace of the
spillage with gauze soaked in water. Finally, remove moisture content with gauze
soaked in ethanol and allow to dry.
<<
When the sample is insoluble in water
>>
Wipe up the spilt sample with gauze or similar material. Remove any trace of the
spillage with gauze soaked in ethanol and allow to dry.