Notes On Safety Conventions And Icons - Endress+Hauser FQG61 Technical Information & Operating Instructions

Radiation Source Container FQG61/FQG62
Notes on safety conventions
and icons
Endress+Hauser
In order to highlight safety-relevant or alternative operating procedures in the manual, the following
conventions have been used, each indicated by a corresponding icon in the margin.
Symbol Meaning
#
Warning!
A warning highlights actions or procedures which, if not performed correctly, will lead to
personal injury, a safety hazard or destruction of the instrument.
"
Caution!
Caution highlights actions or procedures which, if not performed correctly, may lead to
personal injury or incorrect functioning of the instrument.
!
Note!
A note highlights actions or procedures which, if not performed correctly, may indirectly
affect operation or may lead to an instrument response which is not planned.
0
Device certified for use in explosion hazardous area
If the device has this symbol embossed on its nameplate, it can be installed in an explosion
hazardous area or a non-explosion hazardous area, according to the approval.
Explosion hazardous area
-
Symbol used in drawings to indicate explosion hazardous areas.
– Devices used in hazardous areas must possess an appropriate type of protection.
Safe area (non-explosion hazardous area)
.
Symbol used in drawings to indicate, if necessary, non-explosion hazardous areas.
– Devices used in hazardous areas must possess an appropriate type of protection. Lines
used in hazardous areas must meet the necessary safety-related characteristic quantities.
%
Direct voltage
A terminal to which or from which a direct current or voltage may be applied or supplied.
&
Alternating voltage
A terminal to which or from which an alternating (sine-wave) current or voltage may be
applied or supplied.
)
Grounded terminal
A grounded terminal, which as far as the operator is concerned, is already grounded by
means of an earth grounding system.
*
Protective grounding (earth) terminal
A terminal which must be connected to earth ground prior to making any other connection
to the equipment.
+
Equipotential connection (earth bonding)
A connection made to the plant grounding system which may be of type e.g. neutral star or
equipotential line according to national or company practice.
Radioactivity
Marks containers for radioactive materials and areas in which radioactive material is
present.
5