ASSIST PLUS – Operating instructions V02 Maintenance
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6 Maintenance
WARNING
Always turn off power and disconnect the ASSIST PLUS from the mains
when carrying out maintenance work.
6.1 Cleaning
The materials used on the exterior of the ASSIST PLUS support regular cleaning
intervals. Clean the external components with a lint-free cloth lightly soaked with mild soap
solution in distilled water or with a 70 % dilution of Isopropyl or Ethanol. Never use acetone
or other solvents. If solvents are used during pipetting clean the waste bin frame, including
the ledge where the tips are ejected, with water.
6.2 Decontamination
From regular use ASSIST PLUS should not come into direct contact with liquids. If
aerosols or biohazardous fluids splash on the surfaces, they must be decontaminated in
accordance to good laboratory practice.
Take out the Waste bin (9
) to the front. Lift up and remove the waste bin frame and the
magnetically attached Sensor reflector (8
). Remove the decks by holding the front and
the back of the Tip rack deck (6) or holding the Deck (7) on the right and left side,
respectively.
Wipe the clean instrument surface with a lint-free cloth, lightly soaked e. g. with the
following disinfectants:
• Ethanol 70%
• Microcide SQ 1:64
• Glutaraldehyde solution 4%
• Virkon solution 1-3%
Follow the instructions provided with the disinfectants.
The aluminum Decks and the Waste bin with frame can be autoclaved at 121°C, 1 bar
overpressure for 20 minutes.
C
AUTION
Do not autoclave the sensor reflector because it will be damaged.
The sensor reflector may be decontaminated by spraying and wiping it with 70% Ethanol
and after a short treatment time (1-2 minutes) wiping it dry.
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