Switching Off The Power Unit; Cleaning And Maintaining The Power Unit; Material Compatibilities - Cheyenne POWER UNIT I Instrucciones De Uso

6.5

Switching off the power unit

Switching off PU I:
 Press the OFF button.
The display and Power LED go
out.
Switching off PU II:
 Switch the On/Off switch to the
"O" position.
The display goes out.
7 Cleaning and maintaining
the Power Unit
CAUTION
Risk of short circuits and risk of mild
electric shocks
If the Power Unit is cleaned while the
voltage is connected, there is a risk of
minor electric shock and electronic
damage to the Power Unit or power
supply plug.
 Disconnect the Power Unit from the
voltage supply before all cleaning and
service work.
26 EN
ATTENTION
Damage caused by fluid
If cleansers or disinfectants enter the
Power Unit of the power supply plug,
a short-circuit can occur. The electrical
and mechanical components can also
corrode.
 Never immerse the Power Unit or
power supply plug in cleansers or dis-
infectants.
 Never run Power Unit or power supply
plug in autoclaves or ultrasonic baths.
 Pay attention to compatibility of mate-
rials when selecting cleaning agents
and disinfectants (see the following
chapter 7.1).
7.1

Material compatibilities

 Check the compatibility of the cleanser
and/or disinfectant in an inconspicuous
area before cleaning the Power Unit.
 Use a mild soapy solution that is
permitted in your country to clean
the Power Unit, or a 50% aqueous
1-propanol solution.
 Use a mild disinfectant that is permitted
in your country to disinfect the Power
Unit, or a 70% aqueous 2-propanol
solution.
Based on the following material compat-
ibilities, you can assess which cleaning
agents and disinfectants are suitable.
The surfaces of the Power Unit are resis-
tant to:
• Weak acids (e.g. boric acid ≤ 10 %, acetic
acid ≤ 10 %, citric acid ≤ 10 %)
• Aliphatic fluorocarbons (e.g. pentane,
hexane)
• Ethanol
• Most inorganic salts and their aqueous
solutions (e.g. sodium chloride, calcium
chloride, magnesium sulphate)
The surfaces of the Power Unit are not
resistant to:
• Strong acids (e.g. hydrochloric acid ≥ 20 %,
sulphuric acid ≥ 50 %, nitric acid ≥ 15 %)
• Oxidizing acids (e.g. peracetic acid)
• Lyes (e.g. caustic soda, ammonia and all
substances with a pH value > 7)
• Aromatic/halogenized
(e.g. phenol, chloroform)
• Acetone and benzene
Cheyenne Power Unit I & Power Unit II
fluorocarbons