Maintenance; Cautions For Routine Operation; Cleaning The Sample Compartment - Jasco V-630 Hardware Manual

5 Maintenance

Pay attention to the instrument operating environment and always keep it clean so that the
instrument can be used in a stabilized condition over a long period.
This section contains instructions on how to clean the sample compartment when a sample is
spilt, and on replacing consumables.
It is recommended that the validation program be used for checking the performance of the
instrument.

5.1 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) After completing measurements, remove the sample from the sample compartment.

5.2 Cleaning the Sample Compartment

If a sample is spilt in the sample compartment, quickly wipe up the spillage using gauze or a
similar material, remove the cell holder, and clean it using the following procedure.
CAUTION:
Use ethanol to clean the sample compartment. Do not use other types
of organic solvent as this may remove the instrument paint.
(1) Removing the standard cell holder
a) Open the sample compartment lid and loosen the two fixing screws located on the front
underside of the sample compartment by hand (see Fig. 4.1 or Fig. 4.3).
b) Pull the standard cell holder toward you a little and lift to remove it.
(2) Cleaning the standard cell holder
<<When the sample is soluble in water>>
Wipe up the spilt sample using gauze or a similar material. Remove any trace of the spillage
with gauze soaked in water. Finally, remove any moisture with gauze and then allow drying.
<<When the sample is insoluble in water>>
Wipe up the spilt sample using gauze or a similar material. Remove any trace of the spillage
with gauze soaked in ethanol. Finally, remove any moisture with gauze and then allow drying.
(3) Remounting the standard cell holder
a) Locate the standard cell holder over the two positioning pins on the main unit certainly
and move it toward to the back.
b) Ensure that light is incident upon the center of the cell holder. To check it visually, set the
wavelength to 500 nm and place a piece of white paper in front of the cell holder.
c) Firmly tighten the two fixing screws of the bottom of the standard cell holder.
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