2 For your safety
1
About this document
1.1
Function
This instruction provides all the information you
need for mounting, connection and setup as
well as important instructions for maintenance,
fault rectification, the exchange of parts and the
safety of the user. Please read this information
before putting the instrument into operation and
keep this manual accessible in the immediate
vicinity of the device.
1.2
Target group
This operating instructions manual is directed to
trained personnel. The contents of this manual
must be made available to the qualified person-
nel and implemented.
1.3
Symbols used
Information, note, tip: This symbol indi-
cates helpful additional information and
tips for successful work.
Note: This symbol indicates notes to
prevent failures, malfunctions, damage
to devices or plants.
Caution: Non-observance of the infor-
mation marked with this symbol may
result in personal injury.
Warning: Non-observance of the
information marked with this symbol may
result in serious or fatal personal injury.
Danger: Non-observance of the infor-
mation marked with this symbol results
in serious or fatal personal injury.
Ex applications
This symbol indicates special
instructions for Ex applications.
•
List
The dot set in front indicates a list with
no implied sequence.
1 Sequence of actions
Numbers set in front indicate successive
steps in a procedure.
Battery disposal
This symbol indicates special informa-
tion about the disposal of batteries and
accumulators.
18
2
For your safety
2.1
Authorised personnel
All operations described in this documentation
must be carried out only by trained, qualified
personnel authorised by the plant operator.
During work on and with the device, the requi-
red personal protective equipment must always
be worn.
2.2
Appropriate use
The LFC is a sensor for point level detection.
You can find detailed information about the area
of application in chapter " Product description".
Operational reliability is ensured only if the inst-
rument is properly used according to the speci-
fications in the operating instructions manual as
well as possible supplementary instructions.
2.3
Warning about incorrect use
Inappropriate or incorrect use of this product
can give rise to application-specific hazards,
e.g. vessel overfill through incorrect mounting or
adjustment. Damage to property and persons or
environmental contamination can result. Also,
the protective characteristics of the instrument
can be impaired.
2.4
General safety instructions
This is a state-of-the-art instrument complying
with all prevailing regulations and directives. The
instrument must only be operated in a techni-
cally flawless and reliable condition. The opera-
tor is responsible for the trouble-free operation
of the instrument. When measuring aggressive
or corrosive media that can cause a dangerous
situation if the instrument malfunctions, the
operator has to implement suitable measures to
make sure the instrument is functioning properly.
The safety instructions in this operating
instructions manual, the national installation
standards as well as the valid safety regulations
and accident prevention rules must be observed
by the user.
For safety and warranty reasons, any invasive
work on the device beyond that described in the
operating instructions manual may be carried
out only by personnel authorised by the manu-
facturer. Arbitrary conversions or modifications
LFC • Transistor (PNP)