51
Chapter 7
– Maintenance
Stains due to low water
quality
Stains due to foreign rust
particles
Avoiding stains
Stains on instruments or in the HD 450/HD 450
Injection
may be due to
low water quality.
To prevent stains on the instruments or in the washing chamber, we
recommend that the entire rinsing be done with fully demineralized
water (FD water).
All parts of the HD 450/HD 450
Injection
that come into contact with
water are made of rust-free materials. This excludes the HD 450/HD
450 Injection as a source of rust stains.
If any such rust stains appear, it is from a foreign source. It is often
enough to have one rusty instrument for rust to be transferred onto the
inside of the HD 450/HD 450
Injection
or to other instruments.
Inadequate water quality due to heavy metal or
chloride contamination may lead to stains and rust.
Maintenance
■
www.HD450support.de
■ Allow only authorized persons to perform the maintenance.
(Process) Validation
The operator of the practice is responsible for ensuring the error-free
functioning of the cleaning and disinfection process as well as
reproducible results.
This is a stipulation that comes from e.g. the medical product supplier
regulations (Art. 4 para. 2 MPBetreibV), the guidelines of the DGKH,
DGSV, AKI and the recommendations of the Robert Koch Institute.
This stipulation is also valid internationally.
The basis for this is the DIN EN ISO 15883, which also applies in
Germany.
Please be aware of the national regulations and stipulations that apply for
you. If in doubt, please contact an authorized representative.
Reproducible cleaning and disinfection results can be ensured via batch
checks, routine checks and/or periodic inspections (e.g. a validation).
