Storage And Transport; Mounting; General Instructions - SICK LFV 200 Manuel De Mise En Service

condition).
Functional principle
The tuning fork is piezoelectrically energised
and vibrates at its mechanical resonance
frequency of approx. 1100 Hz. When the tuning
fork is submerged in the product, the frequency
changes. This change is detected by the integ-
rated electronics module and converted into a
switching command.
2.3

Storage and transport

Packaging
Your instrument was protected by packaging
during transport. Its capacity to handle normal
loads during transport is assured by a test
based on ISO 4180.
The packaging consists of cardboard. This
material is environment-friendly and recyclable.
Dispose of the packaging material via specia-
lised recycling companies.
3

Mounting

3.1

General instructions

Switching point
In general, LFV 200 can be installed in any
position. The instrument only has to be mounted
in such a way that the tuning fork is at the height
of the desired switching point.
Keep in mind that the swichting point can vary
dependent on the installation position.
The switching point refers to the medium water
(1 g/cm³/0.036 lbs/in³). Please keep in mind that
the switching point of the instrument shifts when
the medium has a density differing from water.
LFV 200 • Tuning Fork
2
1
3
Abb. 30: Vertical mounting
1 Switching point in water
2 Switching point with lower density
3 Switching point with higher density
1
2
Abb. 31: Horizontal mounting
1 Switching point
2 Switching point (recommended mounting position,
particularly for adhesive products)
Moisture
Abb. 32: Measures against moisture penetration
Handling
Do not hold LFV 200 on the tuning fork. Bending
the vibrating element will destroy the instrument.
3 Mounting
15