Miele G 7883 Operating And Installation Instructions page 32

Effects of Processing Chemicals
Soiling
Effects
The following substances can damage
the elastomer components (hoses and
seals) and, in some cases, the plastic
components of the lab washer:
– oils, waxes, aromatic and
unsaturated hydrocarbons,
– softeners,
– cosmetics, hygiene and skin care
products such as creams (analysis
and filling sections).
The following substances can cause
excessive foaming during washing and
rinsing:
– agents such as disinfection agents,
dish detergents, etc.
– reagents for analysis, e.g. for
microtitration plates,
– cosmetics, hygiene and skin care
products such as creams (analysis
and filling sections).
– foaming substances in general, for
instance tensides.
The following substances can cause
corrosion of the stainless steel in the
wash compartment and accessories:
– hydrochloric acid,
– other substances that contain
chloride, e.g. sodium chloride, etc.
– conc. sulphuric acid,
– chromic acid,
– iron particles.
32
Action
– Retrofit the lab washer with more
grease-resistant elastomers.
– Depending on what the lab washer is
used for, periodically wipe the lower
door seal with a lint-free cloth or
sponge.
Clean the wash compartment and
accessories without a load using the
ORGANICA program.
– To process the load, use the
program "OIL" (if available) or use the
special program with metering of
tenside cleaners..
– First rinse the load with a sufficient
quantity of water.
– Select a wash program with one or
more short pre-rinses with cold or
warm water.
– Taking the specific application into
account, add an antifoaming agent,
one without silicone oils if possible.
– First rinse the load with a sufficient
quantity of water.
– Let the load drip dry before putting it
on the carts, baskets and inserts and
placing in the lab washer.