Resistance Of Plastics; Service Life (For Centrifuges According To Machinery Directive) - Sigma 4-5KRL Manual

3.6.7

Resistance of plastics

NOTE
3.6.8

Service life (for centrifuges according to Machinery Directive)

WARNING
NOTE
Version 11/2017, Rev. 1.7.1 of 08/12/2022 • sb
Translation of the original operating manual,
Chemical influences have a strong effect on the polymeric chains of
plastics, and, therefore, on their physical properties. Plastic parts can be
damaged if solvents, acids, or alkaline solutions are used.
•
Refer to the resistance data (see chapter 11.5 - "Resistance data")!
The rotors and accessories have a limited service life.
•
Perform regular checks (at least once per month) for safety reasons!
•
Pay special attention to changes, such as corrosion, cracks, material
abrasion, etc.
•
After 10 years, they must be inspected by the manufacturer.
•
After 50,000 cycles, the rotor must be scrapped for reasons of safety.
•
If other data concerning the service life are engraved on the rotor or
bucket, these data shall apply accordingly. For example, a bucket with
the engraving "max. cycles = 10,000" has a service life of 10,000
cycles, and a rotor with the engraving "Exp. date 01/27" must be
scrapped in January 2027 at the latest (see figure).
•
If a specification concerning the maximum number of cycles and a
specification concerning the service life (i.e. a date) are provided, the
specification that occurs first shall apply.
Fig. 6: Different service life – engraving on the bucket/rotor
•
Refer to the table of the service life of rotors and accessories (see
chapter 11.4 - " Table of the service life of rotors and accessories ")!
Refrigerated Centrifuge for Robot Use Sigma 4-5KRL
Refrigerated Centrifuge for Robot Use Sigma 4-5KRL IVD
3 Safety
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