Vega VEGAPULS 67 User manual
Product information
Radar
Level measurement in bulk solids
VEGAPULS 67
VEGAPULS SR 68
VEGAPULS 68
VEGAPULS 69
Document ID: 29427
2
Contents
Radar - Level measurement in bulk solids
29427-EN-160312
Contents
1 Measuring principle............................................................................................................................................................................................... 3
2 Type overview......................................................................................................................................................................................................... 4
3 Instrument selection.............................................................................................................................................................................................. 6
4 Selection criteria.................................................................................................................................................................................................... 7
5 Housing overview .................................................................................................................................................................................................. 8
6 Mounting................................................................................................................................................................................................................. 9
7 Electronics - 4 … 20 mA/HART - two-wire......................................................................................................................................................... 11
8 Electronics - 4 … 20 mA/HART - four-wire ........................................................................................................................................................ 12
9 Electronics-ProbusPA .................................................................................................................................................................................... 13
10 Electronics-FoundationFieldbus ..................................................................................................................................................................... 14
11 Electronics-Modbus,Levelmasterprotocol .................................................................................................................................................... 15
12 Operation .............................................................................................................................................................................................................. 16
13 Dimensions........................................................................................................................................................................................................... 18
Take note of safety instructions for Ex applications
Please note the Ex specic safety information that you can nd at www.vega.com and that comes with each instrument. In hazardous areas
you should take note of the appropriate regulations, conformity and type approval certicates of the sensors and power supply units. The sen-
sors must only be operated on intrinsically safe circuits. The permissible electrical values are stated in the certicate.
3
Measuring principle
Radar - Level measurement in bulk solids
29427-EN-160312
1 Measuring principle
MeasuringprincipleVEGAPULS67,SR68,68
Extremely short microwave pulses are emitted by the antenna system in
the direction of the measured product, reected by the product surface
and received back again by the antenna system. They propagate at
the speed of light. The time from emission to reception of the signals is
proportional to the level in the vessel.
A special time stretching procedure allows reliable and precise measure-
ment of the extremely short times.
The VEGAPULS 67, SR 68, 68 radar sensors work with low emitted
power in the K-band frequency range.
MeasuringprincipleVEGAPULS69
The instrument emits a continuous radar signal via its lens-shaped
antenna. This signal is frequency modulated with a sawtooth form. The
emitted signal is reected by the medium and received by the antenna as
echo.
The frequency of the received signal always deviates from the actual
emitted frequency. The frequency dierence is calculated by special
algorithms in the sensor electronics. It is proportional to the level in the
vessel.
The VEGAPULS 69 operates with low emitted power in the W-band
frequency range.
Optimizedforbulksolids
Due to the very good signal focussing, internal silo installations or
buildup on the vessel wall do not inuence the measurement. A high
sensitivity electronics adapted to the requirements of bulk solids meas-
urement enables reliable level measurement of dierent products up to
120 m. The measuring principle is unaected by strong dust generation,
lling noise, air ow due to pneumatic lling and temperature uctuations.
Advantages
Non-contact radar technology is characterized by extremely high accura-
cy. The measurement is inuenced neither by uctuating product features
nor by changing process conditions such as temperature, pressure or
strong dust generation. The user-friendly adjustment without vessel lling
and emptying saves time.
Inputvariable
The measured variable is the distance between the process tting of the
sensor and the product surface. The reference plane is the seal surface
of the ange.
3
42
1
Fig. 1: Data of the input variable
1 Reference plane
2 Measured variable, max. measuring range
3 Antenna length
4 Utilisable measuring range
4
Type overview
Radar - Level measurement in bulk solids
29427-EN-160312
2 Type overview
VEGAPULS67 VEGAPULSSR68 VEGAPULS68
Applications Bulk solids Bulk solids under extremely dicult pro-
cess conditions
Bulk solids under extremely dicult pro-
cess conditions
Max. measuring range 15 m (49.21 ft) 30 m (98.43 ft) 75 m (246.1 ft)
Antenna/Material Completely encapsulated plastic horn an-
tenna/PP
Horn or parabolic antenna/316L Horn or parabolic antenna/316L
Processtting/Material Mounting strap/316L or ange/PP Thread G1½/316L according to DIN 3852-
A or ange/316L
Thread G1½/316L according to DIN 3852-
A or ange/316L
Process temperature -40 … +80 °C (-40 … +176 °F) -40 … +250 °C (-40 … +482 °F) -196 … +450 °C (-321 … +842 °F)
Process pressure -1 … +2 bar/-100 … +200 kPa
(-14.5 … +29.0 psig)
-1 … +100 bar/-100 … +10000 kPa
(-14.5 … +1450 psi)
-1 … +160 bar/-100 … +16000 kPa
(-14.5 … +2320 psi)
Deviation ±2 mm ±2 mm ±2 mm
Frequency range K-band K-band K-band
Signal output • 4 … 20 mA/HART - two-wire
• 4 … 20 mA/HART - four-wire
• Probus PA
• Foundation Fieldbus
• Modbus, Levelmaster protocol
• 4 … 20 mA/HART - two-wire
• 4 … 20 mA/HART - four-wire
• Probus PA
• Foundation Fieldbus
• Modbus, Levelmaster protocol
• 4 … 20 mA/HART - two-wire
• 4 … 20 mA/HART - four-wire
• Probus PA
• Foundation Fieldbus
• Modbus, Levelmaster protocol
Indication/Adjustment • PLICSCOM
• PACTwa re
• VEGADIS 81
• VEGADIS 82
• PLICSCOM
• PACTwa re
• VEGADIS 81
• VEGADIS 82
• PLICSCOM
• PACTwa re
• VEGADIS 81
• VEGADIS 82
Approvals • ATEX
• IEC
• FM
• CSA
• ATEX
• IEC
• Shipbuilding
• FM
• CSA
• ATEX
• IEC
• Shipbuilding
• FM
• CSA
5
Type overview
Radar - Level measurement in bulk solids
29427-EN-160312
VEGAPULS69
Applications Bulk solids under extremely dicult process
conditions
Max. measuring range 120 m (393.7 ft)
Antenna/Material Horn antenna/PP or lens antenna/PEEK
Processtting/Material Mounting strap/316L, ange/PP, ange/316L
Process temperature -40 … +200 °C (-40 … +392 °F)
Process pressure -1 … 3 bar/-100 … 300 kPa
(-14.5 … 43.5 psig)
Deviation ±5 mm
Frequency range W-band
Signal output • 4 … 20 mA/HART - two-wire
• 4 … 20 mA/HART - four-wire
• Probus PA
• Foundation Fieldbus
• Modbus, Levelmaster protocol
Indication/Adjustment • PLICSCOM
• PACTwa re
• VEGADIS 81
• VEGADIS 82
Approvals • ATEX
• IEC
• Shipbuilding
• FM
• CSA
6
Instrument selection
Radar - Level measurement in bulk solids
29427-EN-160312
3 Instrument selection
Application areas
VEGAPULS67
The VEGAPULS 67 is a sensor for continuous level measurement of
bulk solids under simple process conditions. It is suitable for smaller
silos and vessels. The VEGAPULS 67 is an economical solution through
its versatile and simple mounting options. The encapsulated antenna
system ensures maintenance-free permanent operation even with strong
contamination.
VEGAPULSSR68
The VEGAPULS SR 68 is a sensor for continuous measurement of bulk
solids even under dicult process conditions. It is particularly suitable for
level measurement in high silos and large bunkers. The VEGAPULS SR
68 is an economical solution thanks to the simple setup and the reliable,
maintenance-free operation.
VEGAPULS68
The VEGAPULS 68 is a sensor for continuous measurement of bulk sol-
ids also under dicult process conditions and large measuring ranges.
The sensor is ideal for level measurement in high silos, large bunkers,
stone crushers and in the furnace. The VEGAPULS 68 with dierent
antenna versions and materials is the optimum solution for virtually all
applications and processes. Through the wide temperature and pressure
range, the sensor can be used universally and enables a simple plan-
ning.
VEGAPULS69
The VEGAPULS 69 is a sensor for continuous measurement of bulk
solids under dierent process conditions. The sensor is ideal for level
measurement in very high silos, large bunkers and segmented vessels.
The very good signal focussing ensures a simple setup and a reliable
measurement. The VEGAPULS 69 can be equipped with an encapsulat-
ed plastic antenna or a lens antenna integrated in the metal ange. This
allows optimumg adaptation to dierent application areas.
Applications
Measurementwithangemounting
For mounting VEGAPULS 67 on a socket, an appropriate compression
ange for DN 80 (ASME 3" or JIS 80) as well as a suitable adapter ange
are available.
r
rr...
/
13
/
12
Fig. 6: Flange mounting of VEGAPULS 67
Measurement setups with mounting strap
The mounting strap enables simple mounting on the vessel wall or silo
top. It is suitable for wall, ceiling or boom mounting. Especially in open
vessels this is a very easy and eective way to align the sensor to the
bulk solid surface.
Fig. 7: VEGAPULS 67 with mounting strap
Measurement with swivelling holder
If mounting in the centre of the silo is not possible, the sensor can be
directed to the vessel center by using the optional swivelling holder. The
following illustration shows a simple way to determine the required angle
of inclination.
d
a
α
Fig. 8: VEGAPULS SR 68 or VEGAPULS 68 with swivelling holder
7
Selection criteria
Radar - Level measurement in bulk solids
29427-EN-160312
4 Selection criteria
VEGAPULS67 VEGAPULS
SR 68
VEGAPULS68 VEGAPULS69
Vessel Small to medium-size vessels ● ● ● ●
Medium-size to large vessels – ●●●
Large vessel – – ● ●
Very large vessels – – ● ●
Process Simple process conditions ● ● ● ●
Extremely dicult process conditions –● ● –
Installation Threaded ttings –● ● -
Flange connections ● ● ● ●
Mounting strap ●– – ●
Antenna Swivelling holder ● ● ● ●
Plastic horn antenna ●– – ●
Metal horn antenna – ● ● -
Metal encapsulated lens antenna – – – ●
Parabolic antenna – ● ● –
Suitabilityforindustry-specic
applications
Aggregates and mining industry ● ● ● ●
Chemical ● ● ● ●
Power generation – ●●●
Foodstus ● ● ● ●
Metal production ● ● ● ●
Oshore –● ● –
Paper ● ● ● ●
Petrochemical – ● ● –
Pharmaceutical – ● ● –
Environment and recycling industry ● ● ● –
Cement industry ● ● ● ●
8
Housing overview
Radar - Level measurement in bulk solids
29427-EN-160312
5 Housing overview
Plastic PBT
Protection rating IP 66/IP 67 IP 66/IP 67
Version Single chamber Double chamber
Application area Industrial environment Industrial environment
Aluminium
Protection rating IP 66/IP 67, IP 66/IP 68 (1 bar) IP 66/IP 67, IP 66/IP 68 (1 bar)
Version Single chamber Double chamber
Application area Industrial environment with increased me-
chanical stress
Industrial environment with increased me-
chanical stress
Stainlesssteel316L
Protection rating IP 66/IP 67 IP 66/IP 67, IP 66/IP 68 (1 bar) IP 66/IP 67, IP 66/IP 68 (1 bar)
Version Single chamber, electropolished Single chamber, precision casting Double chamber, precision casting
Application area Aggressive environment, food processing,
pharmaceutical
Aggressive environment, extreme mechani-
cal stress
Aggressive environment, extreme mechani-
cal stress
9
Mounting
Radar - Level measurement in bulk solids
29427-EN-160312
6 Mounting
Mounting examples
The following illustrations show mounting examples and measurement
setups.
Plastic granules
Fig. 16: Level measurement in a plastic granules silo with VEGAPULS 67
Plastic granules and powder are often stored in high, narrow silos which
are lled pneumatically. Typical conditions are lling noise, material cones
and poor reective properties.
The high sensitivity of the VEGAPULS 67 sensor guarantees ample
performance reserves for reliable level measurement even with widely
varying product surface geometries.
Fine lime
Fig. 17: Level measurement in a lime silo with VEGAPULS SR 68
Due to the extreme dust generation during the lling of powders, a
non-contact measurement with ultrasonics is virtually impossible. The
VEGAPULS SR 68 is the ideal solution since microwaves are unaected
by dust generation and the lling stream.
The VEGAPULS SR 68 radar sensor is the ideal measuring instrument
for this application. With a swivelling holder it can be optimally aligned to
the product surface.
Clinker silo
Fig. 18: Level measurement in a clinker silo with VEGAPULS 68
Clinker is an additive for concrete and is stored in large silos or bunkers.
Its abrasive properties as well as extreme dust generation during lling
place heavy demands on the level measurement.
The VEGAPULS 68 sensor is the optimum solution for level measure-
ment. Its parabolic antenna powerfully focuses the microwaves, thus
generating a strong useful signal. Interference from struts or installations
is excluded.
10
Mounting
Radar - Level measurement in bulk solids
29427-EN-160312
Cement silo
Fig. 19: Level measurement in a cement silo with VEGAPULS 69
Cement is stored in high and very slender silos. The abrasive properties
as well as the extreme dust generation during lling make high demand
on the level measurement.
The VEGAPULS 69 sensor is the optimum solution for level measure-
ment. The high emitting frequency and its antenna powerfully focus the
microwaves, thus generating a strong useful signal. Interference from
struts or installations is excluded.
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11
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