VEGA VEGAFLEX 52P (Profibus PA) - Manual (Page 4)

4 VEGAFLEX 51P and 52P
Product description
1 Product description
1.1 Function
High frequency microwave impulses are
guided along a steel rope. When reaching
the product surface, the microwave impulses
are reflected. The running time of the im-
pulses is processed by the integrated elec-
tronics and outputted as level.
The sensors measure the levels of all kinds of
solids. Density, conductivity, dust generation
and dielectric constant of the product do not
influence the measurement. Also, the chang-
ing features of a solid do not influence the
measured value.
Lime, cement, cereals, plastic granules, flour,
gravel - VEGAFLEX microwave sensors
solve difficult application problems in solids.
The level is also detected reliably in products
with varying moisture content or fluctuating
dielectric constant. High, narrow vessels or
steep material cones in which non-contact
measuring principles did not deliver optimum
measuring results, can be measured without
problem with VEGAFLEX.
VEGAFLEX 51 and 52 differ mainly in the
thickness of the measuring cable.
VEGAFLEX 51 has a cable with 4 mm diam-
eter and is available up to a length of
10 m.
The cable of VEGAFLEX 52 has a diameter of
8 mm and can have a length of up to 20 m.
Due to the stronger cable it is suitable for
solids subjected to higher extracting forces.
• Measuring range up to 20 m with low min.
distance.
• Up to 32 sensors (Ex area: 8 sensors) can
be connected via one two-wire cable.
• Two-wire sensor, supply and digital meas-
uring signal via one two-wire cable.
• Unaffected by application conditions such
as:
- dust and noise generation
- humidity changes
- varying products
- buildup
• Adjustment without vessel filling or empty-
ing.
• Unaffected by vessel material, e.g. metal,
concrete, plastic etc.
• Measuring cable or gravity weight must not
be insulated from the vessel.