Biobase BK-AutoHS96, User Manual, Page: 51 / 55

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6.3 Monthly maintenance

After turning off the instrument, clean the sample pump adapter with a
through needle, and then wipe the end of the adapter and the outer wall
with a cotton swab dipped in alcohol.
6.4 Annual maintenance

Clean the instrument platform, various carriers andouter cases

Clean the rails of both robotic arms.

Check if all the screws are well fixed. If there are loose screws, please tighten
thempromptly.

Check the elastic positioning device on each carrier and replace the
deformedpositioning spring.

Clean the dosing pump adapter with a needle, and then wipe the end
and outer wall ofthe adapter with a cotton swab dipped in alcohol.

Check if that the equipment is properly grounded.

Run "equipment self-test", the loading arm and grasping arm run
smoothly withoutabnormal noise, and the oscillation heating module
oscillation reset is normal.

Check the air tightness of the dosing pump.

Calibrate the dosing pump accuracy.

Verify the heating performance of the oscillating heating module.

Verify the cooling performance of the cooling module.
Note

Annual equipment maintenance must be performed by a
BIOBASEafter- sales service engineer.

When the product needs to be reused after out of device for a long
time, there may be problems such as inaccuracy, please contact
after-sales service engineer by BIOBASE for calibration and use.
6.5 Exception maintenance
In the event of a serious accident (such as: forgetting to place the corresponding
container before running the equipment, which caused liquid splash directly on
system internal parts or other samples during operation), it is necessary to
immediately use 75% ethanol for cleaning to avoid cross-contamination.
6.6 Precaution
During maintenance and repairs,please observe the following precautionary guidelines:
clean
：

Turn off the instrument and main power switch, and unplug the instrument.
Wear lab clothes and disposable gloves, and use a dry, clean cloth to wipe off
any liquid remaining on the surface of the instrument. Clean the instrument
surface with a disposable rag dipped in 75% ethanol..
6.7 Decontamination
In order to protect the safety of maintenance personnel, the Fully Automated
Nucleic Acid Extraction System must be cleaned in accordance with standard
laboratory practices (GLP) before maintenance If the Fully Automated Nucleic