Operating instructions
1 For your safety
1.1 Authorised personnel
All operations described in this operating instru-
ctions manual must be carried out only by trained
specialist personnel authorised by the plant opera-
tor.
During work on and with the device the required
personal protection equipment must always be
worn.
1.2 Appropriate use
LFV200 is a sensor for level detection.
You can nd detailed information on the application
range of LFV200 in chapter "Product description".
1.3 Warning about misuse
Inappropriate or incorrect use of the instrument can
give rise to application-specic hazards, e.g. vessel
overll or damage to system components through
incorrect mounting or adjustment.
1.4 General safety instructions
This is a high-tech instrument requiring the strict
observance of standard regulations and guidelines.
The user must take note of the safety instructions in
this operating instructions manual, the country-
specic installation standards as well as all prevai-
ling safety regulations and accident prevention rules.
The instrument must only be operated in a
technically awless and reliable condition. The
operator is responsible for trouble-free operation of
the instrument.
During the entire duration of use, the user is obliged
to determine the compliance of the required
occupational safety measures with the current valid
rules and regulations and also take note of new
regulations.
LFV200
1.5 CE conformity
LFV200 is in CE conformity with EMC (89/336/
EWG), fulls NAMUR recommendation NE 21 and
NE 23 and is in CE conformity with NSR (73/23/EG).
Conformity has been judged according to the
following standards:
EMC:
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Emission EN 61326: 1997 (class B)
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Susceptibility EN 61326: 1997/A1:1998
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LVD: EN 61010-1: 2001
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2 Product description
2.1 Configuration
The point level sensor is available with transistor
output or contactless electronics switch.
Scope of delivery
The scope of delivery encompasses:
LFV200 point level sensor
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Test magnet
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Documentation
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this operating instructions manual
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WHG certicate
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2.2 Principle of operation
Area of application
LFV200 is a point level sensor with tuning fork for
level detection.
It is designed for industrial use in all areas of
process technology and is used in liquids.
Fault monitoring
The electronics module of LFV200 continuously
monitors via frequency evaluation the following
criteria:
Strong corrosion or damage on the tuning fork
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loss of vibration
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Line break to the piezo drive
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For your safety
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