Hach-Lange DR 2800 eco - Manual (Page 107)

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Section 7 Maintenance
DANGER
Only qualified personnel should conduct the tasks described
in this section of the manual.
7.1 Cleaning the instrument and cuvettes/cells
7.1.1 Spectrophotometer
• Do not expose the instrument to extremes of temperature
(heating; direct sunlight, other sources of heat).
• All-round unobstructed ventilation of the instrument must be
assured at all times.
• The instrument must not be operated or kept in extremely
dusty, damp or wet locations.
• Keep the surface of the instrument, the cell compartments and
all accessories clean and dry at all times. Splashes or spills on
and in the instrument should be cleaned up immediately (switch
off and unplug the instrument first).
• When the instrument is switched off and unplugged, clean the
enclosure, the cell compartments and all accessories with a
soft damp cloth. A mild soap solution can also be used.
In view of the sensitivity of the mechanical components, great
care should be taken when cleaning the round cuvette
compartment.
• Dry the cleaned parts carefully with a soft cotton cloth.
Important Note: Under no circumstances should the instrument or
the display or the accessories be cleaned with solvents such as
white spirit, acetone, etc.
7.1.2 Display
• Take care not to scratch the display. Do not touch the screen
with ball pens, pencils or similar pointed objects.
• Clean the display with a soft, lint-free and oil-free cotton cloth.
Diluted window cleaner liquid can also be used.
7.1.3 Cuvettes/cells (DR 2800 only)
7.1.3.1 Glas cuvette
• Clean glass cuvettes with cleaning agents and water.
• Afterwards, rinse the cuvettes several times with tap water and
then thoroughly with deionized water.
Important Note: Glass cuvettes that have been used for organic
solvents (such as chloroform, benzene, toluene, etc.) must be
rinsed with acetone before being treated with cleaning agents. In
addition, another rinse with acetone is necessary as a final
treatment step before the cuvettes are dried.