Section 7 Maintenance

CAUTION

Potential Chemical, Biological Eye and Skin Hazards.

Only qualified personnel should conduct the tasks described in this section of the manual.

Important Note: Remove any cuvettes/cells that are still in the instrument and dispose of them or their contents using an approved disposal method.

7.1 Cleaning requirements

CAUTION

Potential Pinch, Eye, Burn and Chemical Hazards. Always disconnect power from the instrument before attempting any cleaning operations.

Important Note: Under no circumstances should the instrument, display or the accessories be cleaned with solvents such as white spirit, acetone, etc.

7.1.1 Spectrophotometer

Clean the enclosure, cuvette/sample cell compartments and all accessories with a soft damp cloth. A mild soap solution can also be used. Do not get excess water in the cuvette/sample cell compartments. Do not insert a brush or sharp object into Cell Compartment #1 to avoid damaging the mechanical components.

Dry the cleaned parts carefully with a soft cotton cloth.

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/sample cells

CAUTION

Potential Chemical/ Biological Exposure Hazards.

Use proper laboratory practices whenever there is a risk of chemical exposure.

1.After performing a procedure, clean glass cuvettes/sample cells with cleaning agents.

2.Afterwards, rinse the cuvettes/sample cells several times with tap water and then thoroughly with deionized water.

Important Note: Glass cuvettes/sample cells 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/sample cells are dried.

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Hach DR 5000 user manual Maintenance, Cleaning requirements, Spectrophotometer, Display, Cuvettes/sample cells