Limitations On Aqueous Cleaners; Recommended Cleaning Agent; Maintenance; Maintenance / Care - Renfert Easyclean Manual Del Usuario

Do not fill potentially explosive substances and flam-
mable solvents
• falling under the hazardous goods/material
classification according to the Ordinance
Regulating Flammable Liquids("Vfb"): AI, B, AII,
AIII
• or marked in compliance with the EEC directives
by symbols and safety warnings E or R 1, R2
• or R 3 for potentially explosive substances
• or F+, F or R 10, R 11 or R 12 for flammable
substances
into the stainless steel tank for ultrasonic treatment.
e
xcePtion
In compliance with the general regulations on the pro-
tection of labour, certain limited volumes of flammable
liquids (max. 1 litre) can be used in an ultrasonic
cleaning unit under the following conditions: these
liquids must be filled into a suitable separate vessel
(e.g. beaker) with sufficient ventilation; this vessel
(beaker) can then be put into the stainless steel tank
which is filled with non-flammable liquid (water with a
few drops of interlacing agent).
8.2 Limitations on aqueous
cleaners
Do not use aqueous cleaning media with pH values in
the acid range (pH < 7) directly in the ultrasonic tank
if fluoride (Fˉ), chloride (Clˉ) or bromide (Brˉ) ions can
be taken in by the removed dirt or through the clean-
ing chemical. These can destroy the stainless-steel
tank by crevice corrosion within a very short period of
ultrasonic operation.
A
cids And AlkAline solutions
Other media which can destroy the stainless-steel
tanks when used in high concentrations or with high
temperatures during ultrasonic operation are: nitric
acid, sulphuric acid, formic acid, hydrofluoric acid
(even diluted). (Completeness of list not guaranteed.)
w -
Ashing uP liquid And household detergents
Washing-up liquid and household detergents may
contain small amounts of chloride.
Usually, the amount is so low, they need not be de-
clared on the packaging and therefore go undetected.
Nevertheless, this small amount is enough to dam-
age the ultrasonic cleaner's stainless steel tank and
basket by causing rust, pitting corrosion and deterio-
ration.
Therefore, use only detergents specified in
Chapt. 8.3.
e
ntrAinment of chemicAl suBstAnces
The above limitations for the use of chemicals in an
ultrasonic bath also apply for the aforementioned
chemicals when these are brought into an aqueous
(particularly distilled water) bath through entrainment
or from the removed dirt.
A -
cid resistAnt tAnk
For the ultrasonic treatment with the above men-
tioned media use an acid-resistant tank (available as
accessory equipment).
d
isinfectAnts
The limitations of use also apply to the standard
cleaners and disinfectants if these contain the above
mentioned compounds.
s
Afety regulAtions
Observe the safety warnings indicated by the manu-
facturer of the chemicals (e.g. goggles, gloves, R and
S phrases).
8.3 Recommended cleaning
agent
go 2011 s
Peed
Plaster and Alginate Remover, ready for use
Easily cleans
• mixing bowls
• plastic prostheses
• impression trays
• casts
• instruments
• auxiliaries
for dental plasters, plaster-bonded investments and
alginates – even in areas hard to get to. Adding ultra-
sound and keeping the bath temperature at 40–50°C
speed up the cleaning process.

9. Maintenance

9.1 Maintenance / Care

Pull the mains plug before carrying out any
maintenance works!
Rinse thoroughly with water after servicing,
maintenance work and disinfection.
m
AintenAnce
The present ultrasonic cleaning unit is maintenance-
free.
Check the casing and the mains cable for damage
regularly in order to prevent electrical accidents.
c
Are of cAsing
Residues of cleaning agents can be wiped off with a
household cleaner or standard descaler depending
on the nature of the residues.
Do not put the unit in or under water!
d
isinfection
If the unit is used for medical and sanitary purposes it
is necessary to disinfect the transducer tank and the
surfaces regularly (standard surface disinfectants).
- 9 -
EN
EN