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VEGAPULS 69
The ultimate bulk
solids level sensor
COVER ARTICLE
V
EGA, the market leader in solids ra-
dar level for over 10 years, recently
introduced the new VEGAPULS 69
- a non-contact sensor delivering the full
performance spectrum in bulk solids level
measurement.
“What sets the VEGAPULS 69 apart”, says
John Groom, managing director of VEGA
Instruments SA, “is the performance of this
new generation radar sensor. It has the ca-
pability to meet the most diverse tasks; from
level gauging downmine shafts, tomeasure-
ment in small hoppers or bulk containers,
and it even reacts fast enough for level or
position control on conveyor cars”. He adds,
“This new innovation takes radar level tech-
nology very close to being a universal bulk
solids level measurement sensor”.
Good focusing is a critical factor for accu-
rate and reliable measurement. A radar sen-
sor can only measure the level correctly if a
proper level echo is present.This is especially
true for solids – if the noise (i.e. the jumble of
interfering signals) is as strong the level echo
itself, a consistent performance from a non-
contact sensor is very difficult to achieve.
The beamangle of
the emitted radar
energy – and thus
also the focusing
– is dependent on
two factors: trans-
mission frequency
and effective an-
tenna aperture.
This means that,
with an antenna
of the same size,
considerably bet-
ter focusing is
achieved with a
higher frequency.
TheVEGAPULS 69
operates with a transmission frequency of 79
GHz and an antenna aperture of 75 mm. A
beam angle of just 4 ° is achieved with this,
making measurement more certain and reli-
able.The focused 79 GHz beam simply avoids
any internal installations and build-up on the
vessel wall and the result is highly reliable
measurement data.
By comparison, a radar sensor with a
transmission frequency of 26 GHz and an
antenna of the same size has an aperture
angle of approximately 10 °.The wider beam
generates more false echoes as it strikes the
internal fixtures and build-up on the vessel
wall, making a precise measurement more
difficult.
The VEGAPULS 69 offers high frequency,
optimum signal focusing – ideal for narrow
containers and eliminating false signals,
resulting in higher measurement accuracy
and reliability, even over long measuring
ranges. With an accuracy of ± 5 mm it is
sensitive enough
to detect the small-
est of level reflec-
tions. Difficult bulk
solids, for example very dusty, uneven
surface profiles like fine ash, cement, flour,
coal, plastic powders biomass and wood
chips, can be measured confidently using
this contactless technology, with no signal
loss and minimal false echoes.
“If you want to find out more about our lat-
est offering, contact us for a demonstration
with a battery powered device or to arrange
a trial in your application”, John Groom of-
fers. “We’re asking you ‘Is it time to focus
on your bulk solids level measurement?’. If
so, our team of sales engineers and staff is
here to help and advise you every step of the
way”. He concludes, “You might find that the
VEGAPULS 69 is a game changer for contact-
less level measurement of bulk solids”.
Enquiries: Chantal Groom.
Vega Instruments SA
Tel: 27 11 795 3249 or
email:
info.za@vega.comor
visit:
www.vega.com/zaFEATURES:
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2015/03/23 09:41:34AM
37
April ‘15
Electricity+Control