Cleaning And Maintenance; Maintenance; Cleaning - kruss DR201-95 Instruction Manual

Digital handheld refractometer

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5 Cleaning and maintenance

5.1

W A R N I N G

➢ Servicing work may only be carried out by expert A.KRÜSS employees.

➢ Do not clean the device under flowing water or completely immerse it as

damage could thus be caused.

5.2

Note

Improper cleaning can damage the device

➢ Aggressive and abrasive cleaning agents can damage the refractometer.

➢ Avoid strong bases and acids. They damage the plastic housing.

➢

Do not clean the measurement prism with mechanical means (scraper,

tweezers, ...) to avoid damaging it.

Observe the following to ensure safe and reliable operation of the device:

▪

Correct cleaning of a refractometer is a basic requirement for precise

determination of the refractive index.

▪

The device should be cleaned before and after each use.

▪

If the cleaning procedure is carried out incorrectly, a very thin layer of the previous

sample may remain, which causes sample carry-over. An incorrect refractive index

will subsequently be measured for the next sample.

 Details of

cleaning procedures

Instruction Manual DR201-95

available at the A.KRÜSS campus.

Page 21 of 30

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