08
Thermo Fisher Scientific
User Guide STP420D/STP420ES
How to use this user guide
Symbols Used
Symbols Used
The User Guide is written for routine users of the STP420, and their
supervisors. It is divided into a number of chapters that tell you how
to operate the STP420, and appendices which give you further infor-
mation. Familiarise yourself with the contents of the User Guide, and
especially the section Safety Precautions below, before you start your
daily routine work.
The User Guide uses the following symbols for important safety
and operational information:
Notes:
Special instructions regarding the operation of the instrument
Warning or CaUtion
Warning or Caution: Special precautionary measures to prevent
damage to the equipment. Observe these carefully, to prolong
the life of the instrument.
G
eneral
D
anGer
Observe the Us er Guide strictly when this symbol is visible.
Never override the safety features built in to the instrument.
B
iohazarD
There is potential danger from biological material.
C
hemiCal
hazarD
Harmful chemicals are used with the instrument. Refer to
the material safety data sheets for the chemicals used. Always
act with common sense and in accordance with local labora-
tory procedures. Take suitable precautions.
h
ot
surfaCe
Some of the instrument’s surfaces become hot during use. They
are marked with this warning symbol. Touching these surfaces
might cause burns.
How to Use this
User guide