Level measurement
of bulk solids
Radar
VEGAPULS 68
Product Information
Contents
Contents
1
2
3
4
5
6
7
8
Description of the measuring principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Type overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical connection
4.1 General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Connection cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.4 Connection of the cable screen and grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.5 Wiring plans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjustment
5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Adjustment with the indicating and adjustment module PLICSCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 Adjustment with PACTware™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.4 Adjustment with other adjustment programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Product code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2
Radar – Level measurement of bulk solids
29427-EN-060407
Take note of safety instructions for Ex applications
With Ex applications, please note the Ex-specific safety information on our homepage www.vega.com\services\downloads
and in the documentation that comes with every instrument. In hazardous areas you should take note of the appropriate
regulations, conformity and type approval certificates of the sensors and power supply units. The sensors must only be
operated on intrinsically safe circuits. The permissible electrical values are stated in the certificate.
Description of the measuring principle
1
Description of the measuring principle
Measuring principle
Extremely short microwave pulses with low emitted power are
transmitted by the antenna system to the measured product, reflected by the product surface and received by the antenna system. Radar waves travel 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 ensures reliable
and precise measurement of the extremely short transmission
periods.
1.1
Application examples
Clinker silo
The latest microprocessor technology and the proven software
ECHOFOX select the level echo from among a large number of
false echoes and measure it precisely.
By simply entering the vessel dimensions, a level-proportional
signal is generated from the distance. It is not necessary to fill
the vessel for setup and adjustment.
Wide application range
The VEGAPULS 68 radar sensor is particularly suitable for measurement of bulk solids, but can also be used for liquids. Its mechanical configuration as well as its electronics were optimised
for this application. Thanks to special horn and parabolic antennas and the increased dynamic range of the receiver, levels in
measuring ranges up to 60 m (197 ft), optionally also up to 70 m
(230 ft) can be detected. A reliable measurement is possible with
dielectric values from 1.6.
Versions for real-world applications
Adaptable sensors are required for the widely varying product
characteristics and mounting situations. That is why VEGAPULS
68 is available with thread and flange fittings as well as swivelling
holder. An integrated connection for air rinsing is also available.
This prevents dirt from collecting on the antenna. An optional
temperature adapter extends the application range to product
temperatures up to 200 °C (392 °F). Mounting on VEGAPULS
68 is very easy and requires no additional work on the measurement loop.
Fig. 1: 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 filling place heavy demands on the level measurement.
VEGAPULS 68 is the optimum solution for level measurement. Its
parabolic antenna powerfully focuses the microwaves, generating a strong useful signal. Interference from struts or installations
is excluded.
Unaffected by product properties
Fluctuations in product composition or even complete product
changes do not influence the measuring result. A fresh adjustment is not necessary.
Instrument selection
29427-EN-060407
VEGAPULS 68 radar sensors are available with horn and parabolic antennas. This yields a variety of instrument-specific beam
angles and measurement characteristics. Selection of a suitable
antenna depends on the respective application. For detailed selection you can use the tools "Finder" and "Configurator" on our
website or contact our respective agency.
Radar – Level measurement of bulk solids
3
Description of the measuring principle
Plastic granules
The efficient VEGAPULS 68 has high dynamics. It thus delivers
reliable measuring results even with high pulp densities, temperatures up to 95 °C, steam generation and buildup.
Fig. 2: Level measurement in a silo with plastic granules with VEGAPULS 68
Plastic granules and powder are often stored in high, narrow silos
which are filled pneumatically. Typical conditions are filling noise,
material cones and poor reflective properties.
The high sensitivity of VEGAPULS 68 provides sufficient power
reserves for a reliable level measurement even with widely varying product surface geometries.
Bleaching tower
Fig. 3: Level measurement in a bleaching tower with VEGAPULS 68
4
29427-EN-060407
Through multi-stage bleaching, cellulose is brought to the degree
of whiteness necessary for white papers. Uniform, steady filling of
the bleaching tower is decisive for the quality of the bleaching
process.
Radar – Level measurement of bulk solids
Type overview
2
Type overview
VEGAPULS 68 with horn antenna
VEGAPULS 68 with parabolic antenna
Solids
Solids
70 m (230 ft)
70 m (230 ft)
Process fitting:
Thread, swivelling holder, flange
Swivelling holder, flange
Material:
316L, Hastelloy C22 plated, Hastelloy C22
316L, Hastelloy C22 plated, Hastelloy C22
Process temperature:
-40 … +200 °C (-40 … +392 °F)
-40 … +200 °C (-40 … +392 °F)
Process pressure:
-1 … 40 bar/-100 … 4000 kPa
(-14.5 … 580 psi)
-1 … 6 bar/-100 … 600 kPa
(-14.5 … 87 psi)
Signal output:
4 … 20 mA/HART two-wire, four-wire, Profibus PA,
Foundation Fieldbus
4 … 20 mA/HART two-wire, four-wire, Profibus PA,
Foundation Fieldbus
29427-EN-060407
Preferred application:
Measuring range:
Radar – Level measurement of bulk solids
5
Type overview
Indicating and adjustment
module
PLICSCOM
Housing
Plastic
Stainless steel
Aluminium
Aluminium
(double chamber)
4 … 20 mA/
HART
4 … 20 mA/
HART four-wire
Profibus PA
Foundation
Fieldbus
Thread
Flanges
Flange for swivelling holder
Horn antenna
Parabolic antenna
FM
CSA
Electronics
Process fitting
Sensors
Approvals
Gas explosion protection
Dust explosion protection
29427-EN-060407
6
Radar – Level measurement of bulk solids
Mounting information
3
Mounting information
Measuring range
The reference plane of the sensor measuring range is the seal
surface of the thread or flange. All information relating to the
measuring range as well as the internal signal processing relate
to the reference plane.
In vessels with conical bottom it can be advantageous to mount
the sensor in the center of the vessel, as measurement is then
possible down to the lowest point of the vessel bottom.
Note:
If the medium reaches the antenna, buildup can be
caused which can lead to faulty measurements later on.
1
2
3
4
100%
Fig. 6: VEGAPULS 68 on a vessel with conical vessel bottom - Medium solid
0%
Fig. 4: VEGAPULS 68 - Measuring range (operating range) and max. measuring
distance
1
2
3
4
full
empty (max. measuring distance)
Measuring range
Reference plane
Pressure/Vacuum
The process fitting must be sealed if there is gauge or low pressure in the vessel. Before use, check if the seal material is resistant against the measured product. The max. permissible pressure is stated in the "Technical data" or on the type label of the
sensor.
Fig. 7: VEGAPULS 68 on a vessel with conical vessel bottom - Medium liquid
Socket
Socket pieces should be dimensioned such that the antenna end
protrudes at least 10 mm (0.4 in) out of the socket.
If you cannot keep this distance, a false echo storage should be
carried out during setup. This applies particularly if buildup on the
vessel wall is expected. In such case, we recommend repeating
the false echo storage later on with existing buildup.
2
1
ca. 10 mm
Installation position
When mounting VEGAPULS 68, keep a distance of at least
200 mm to the vessel wall. If the sensor is installed in the center
of dished or spherical vessel tops, multiple echoes can arise.
These can, however, be faded out by an appropriate adjustment.
Fig. 8: Recommended socket mounting
If the reflective properties of the medium are good, you can mount
VEGAPULS 68 on sockets higher than the antenna length. You
will find recommended values for socket heights in the following
illustration. The socket end should be smooth and burr-free, if
possible also rounded.
29427-EN-060407
> 200 mm
Fig. 5: Mounting VEGAPULS 68 on round vessel tops
1
2
Reference plane
Vessel center or symmetry axis
Radar – Level measurement of bulk solids
7
h max.
Mounting information
d
d
1½"
50 mm/2"
80 mm/3"
100 mm/4"
150 mm/6"
h max.
200 mm
250 mm
300 mm
500 mm
800 mm
Fig. 9: Deviating socket dimensions
Sensor orientation
With liquids, align the sensor as close to vertical as possible to
achieve optimum measuring results.
Fig. 12: Radar sensors on traverse crane
Inflowing material
Do not mount the instruments in or above the filling stream. Make
sure that you detect the product surface and not the inflowing
product.
Fig. 10: Orientation in liquids
The version with swivelling holder is recommended for optimum
orientation to solids.
Vessel installations
The radar sensor should be installed at a location where no installations cross the radar signals.
Vessel installations such as, for example, ladders, limit switches,
heating spirals, struts, etc. can cause false echoes that get superimposed on the useful echo. Make sure when planning your
measuring site that the radar sensor has a "clear view" to the
measured product.
If there are existing vessel installations, a false echo storage
should be carried out during setup.
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures. Small, inclined sheet metal baffles above the installations
scatter the radar signals and prevent direct interfering reflections.
Fig. 13: Inflowing material
Foam generation
Through the action of filling, stirring and other processes in the
vessel, dense foams which considerably damp the emitted signals may form on the product surface.
If foams lead to measurement errors, you should use the biggest
possible radar antennas or low frequency radar sensors, e.g.
VEGAPULS 65, 66 (C-band).
VEGAFLEX sensors with guided microwaves are not influenced
by foam generation and are particularly suitable for such applications.
Fig. 11: Cover smooth profiles with deflectors
8
29427-EN-060407
Material heaps
Large material heaps are detected with several sensors, which
can be mounted on e.g. traverse cranes. For this type of application, it is best to direct the sensor perpendicularly to the solid
surface.
Radar – Level measurement of bulk solids
Electrical connection
4
Electrical connection
4.1
General requirements
The supply voltage range can differ depending on the instrument
version. The exact range is stated in the "Technical data".
Take note of country-specific installation standards (e.g. the VDE
regulations in Germany) as well as prevailing safety regulations
and accident prevention rules.
In hazardous areas you should take note of the appropriate regulations, conformity and type approval certificates of the sensors and power supply units.
4.2
Voltage supply
General
Power supply and current signal are carried over the same twowire connection cable. The requirements on the power supply are
stated in the Technical data of this Product Information manual.
4 … 20 mA/HART two-wire
The VEGA power supply units VEGATRENN 149AEx, VEGASTAB 690, VEGADIS 371 as well as VEGAMET signal conditioning instruments are suitable for power supply. When one of these
instruments is used, a reliable separation of the supply circuits
from the mains circuits acc. to DIN VDE 0106 part 101 is ensured
for VEGAPULS 68.
4 … 20 mA/HART four-wire
Power supply and current output are carried on two separate
connection cables.
screened cable acc. to the bus specification. Make sure that
the bus is terminated via appropriate terminating resistors.
For the power supply, an approved installation cable with PE
conductor is also necessary.
In Ex applications, the corresponding installation regulations must be noted for the connection cable.
4.4
Connection of the cable screen and
grounding
If screened cable is necessary, the cable screen must be connected on both ends to ground potential. If potential equalisation
currents are expected, the connection on the evalutation side
must be made via a ceramic capacitor (e.g. 1 nF, 1500 V).
Profibus PA, Foundation Fieldbus
In systems with potential separation, the cable screen is connected directly to ground potential on the power supply unit, in
the connection box and directly on the sensor.
In systems without potential equalisation, connect the cable
screen directly to ground potential only at the power supply unit
and at the sensor - do not connect to ground potential in the
connection box or T-distributor.
4.5
Wiring plans
Single chamber housing
The standard version can be operated with an earth-connected
current output, the Exd version must be operated with a floating
output.
Display
The instrument is designed in protection class I. To maintain this
protection class, it is absolutely necessary that the ground conductor be connected to the internal ground conductor terminal.
I2C
Profibus PA
Power is supplied by a Profibus DP/PA segment coupler or a
VEGALOG 571 EP input card.
Foundation Fieldbus
Power supply via the H1 Fieldbus cable.
4.3
1
2
5
6
7
8
1
Fig. 14: Connection HART two-wire, Profibus PA, Foundation Fieldbus
1
Power supply and signal output
Connection cable
29427-EN-060407
General
The sensors are connected with standard cable without screen.
An outer cable diameter of 5 … 9 mm ensures the seal effect of the
cable entry.
4 … 20 mA/HART two-wire and four-wire
If electromagnetic interference is expected which is above the
test values of EN 61326 for industrial areas, screened cable
should be used. In HART multidrop mode the use of screened
cable is generally recommended.
Profibus PA, Foundation Fieldbus
The installation must be carried out acc. to the appropriate bus
specification. VEGAPULS 68 is connected respectively with
Radar – Level measurement of bulk solids
9
Electrical connection
Double chamber housing - two-wire
I2C
1
2
1
Fig. 15: Connection HART two-wire, Profibus PA, Foundation Fieldbus
1
Power supply and signal output
Version IP 66/IP 68, 1 bar
+
1
2
Fig. 16: Wire assignment, connection cable
1
2
br (+) and bl (-) for power supply or to the processing system
Screen
Double chamber housing - 4 … 20 mA/HART four-wire
L1 N
1
1
2
4...20mA
3
IS
GND
4
/L
/N
PE
4 ... 20 mA
2
Fig. 17: Connection 4 … 20 mA/HART four-wire
1
2
Voltage supply
Signal output
29427-EN-060407
10
Radar – Level measurement of bulk solids
Adjustment
5
Adjustment
5.1
Overview
VEGAPULS 68 can be adjusted with the following adjustment
media:
l the indicating and adjustment module PLICSCOM
l an adjustment software acc. to FDT/DTM standard, e.g.
PACTware™ and PC
and, depending on the signal output, also with:
l a HART handheld (4 … 20 mA/HART)
l the adjustment program AMS (4 … 20 mA/HART and Foundation Fieldbus)
l the adjustment program PDM (Profibus PA)
l a configuration tool (Foundation Fieldbus)
The entered parameters are generally saved in VEGAPULS 68,
optionally also in PLICSCOM or in the adjustment program.
5.2
Adjustment with the indicating and adjustment module PLICSCOM
Setup and indication
PLICSCOM is a pluggable indication and adjustment module for
plics® sensors. It can be placed in four different positions on the
instrument (each displaced by 90°). Indication and adjustment
are made via four keys and a clear, graphic-capable dot matrix
indication. The adjustment menu with language selection is
clearly structured and enables easy setup. After setup,
PLICSCOM serves as indicating instrument: through the screwed
cover with glass insert, measured values can be read directly in
the requested unit and presentation.
Depending on the hardware version of PLICSCOM or the respective sensor electronics, an integrated backlight can be switched
on via the adjustment menu.1)
-
confirm selected menu
edit parameter
save value
l
[->] key to select:
- menu change
- list entry
- editing position
l
[+] key:
- modify value of a parameter
l
[ESC] key:
- interrupt input
- jump to the next higher menu
5.3
Adjustment with PACTware™
PACTware™/DTM
Independent of the signal output 4 … 20 mA/HART, Profibus PA
or Foundation Fieldbus, the VEGAPULS 68 sensors can be operated directly on the instrument via PACTware™. An instrument
driver for the respective VEGAPULS 68 is necessary for the adjustment with PACTware™. All currently available VEGA DTMs
are composed as DTM Collection with the current PACTware™
version on a CD. They are available for a protective fee from our
respective VEGA agency. In addition, this DTM Collection incl.
PACTware™ can be downloaded free-of-charge in the basic version via the Internet.
To use the entire range of functions of a DTM, incl. project documentation, a DTM licence is required for that particular instrument family. This licence can be bought from the VEGA agency
serving you.
Connecting the PC directly to the sensor
PLICSCOM adjustment
VEGACONNECT 3
PACTwareTM/
2
1
1.1
3
>PA<
1
=
~
2
3
Fig. 18: Indicating and adjustment elements
29427-EN-060407
1
2
3
LC display
Indication of the menu item number
Adjustment keys
Key functions
Power supply
Fig. 19: PC connected directly to the sensor
1
2
3
RS232 connection
VEGAPULS 68
I²C adapter cable for VEGACONNECT 3
To adjust with PACTware™, a VEGACONNECT 3 with I²C adapter cable (art. no. 2.27323) as well as a power supply unit is necessary in addition to the PC and the suitable VEGA-DTM.
l
[OK] key:
- move to the menu overview
1)
This function is for instruments with StEx, WHG or ship approval as well as country-specific approvals such as those acc. to FM or CSA,
available at a later date.
Radar – Level measurement of bulk solids
Connecting the PC to the signal cable (4 … 20 mA/HART)
11
Adjustment
5.4
=
4
~
2
Power supply
3
PACTwareTM/
VEGACONNECT 3
PDM
For VEGA PA sensors, device descriptions are also available as
EDD for the adjustment program PDM. The device descriptions
are already implemented in the current versions of PDM. For older versions of PDM they are available as a free-of-charge download from the Internet.
AMS
For VEGA FF sensors, device descriptions are also available as
DD for the adjustment program AMS™. The device descriptions
are already implemented in the current version of AMS™. For
older versions of AMS™, a free-of-charge download is available
via Internet.
1
Fig. 20: Connecting the PC to the signal cable
1
2
3
4
Adjustment with other adjustment programs
RS232 connection
VEGAPULS 68
HART adapter cable for VEGACONNECT 3
HART resistance 250 Ohm
To adjust with PACTware™, a VEGACONNECT 3 with HART
adapter cable (art. no. 2.25397) as well as a power supply unit
and a HART resistor with approx. 250 Ohm is required in addition
to the PC and the suitable VEGA DTM.
Note:
With power supply units with integrated HART resistance (internal resistance approx. 250 Ohm), an additional external resistance is not necessary. This applies,
e.g. to the VEGA instruments VEGATRENN 149A, VEGADIS 371, VEGAMET 381. Also standard Ex separators are most of the time equipped with a sufficiently high
current limitation resistor. In such cases, VEGACONNECT 3 can be connected in parallel to the
4 … 20 mA cable.
Connecting the PC to the signal cable (4 … 20 mA/HART
four-wire)
Power supply
4
2
5
3
1
PACTware TM /
VEGACONNECT 3
Fig. 21: Connecting the PC to the signal cable
1
2
3
4
5
RS232 connection
VEGAPULS 68
HART adapter cable for VEGACONNECT 3
HART resistance 250 Ohm
4 … 20 mA processing
12
29427-EN-060407
To adjust with PACTware™, a VEGACONNECT 3 with HART
adapter cable (art. no. 2.25397) and a HART resistor with approx.
250 Ohm is required in addition to the PC and the suitable VEGA
DTM.
Radar – Level measurement of bulk solids
Technical data
6
Technical data
General data
316L corresponds to 1.4404 or 1.4435
Materials, non-wetted parts
- Housing
- Seal ring between housing and housing cover
- Inspection window in housing cover for PLICSCOM
- Ground terminal
plastic PBT (Polyester), Alu-die casting powder-coated, 316L
NBR (stainless steel housing), silicone (Alu/plastic housing)
Polycarbonate (UL746-C listed)
316Ti/316L (1.4571/1.4435)
Materials, wetted parts
- Process fitting
- Antenna
- Antenna cone
- seal, antenna system
316L, Hastelloy C22, Hastelloy C22 plated
316L, 316L electropolished, Hastelloy C22
PTFE (TFM 1600 PTFE)
FKM (Viton), Kalrez 2035, 6230, 6375
Weight with horn antenna
- Process fitting - Thread
- Process fitting - Flange
- Process fitting - Swivelling holder with flange
2.0 … 2.8 kg (4.4 … 6.2 lbs), depending on thread size and housing
4.2 … 15.4 kg (9.3 … 34 lbs), depending on flange size and housing
5.2 … 16.4 kg (11.5 … 35.2 lbs), depending on the flange size and housing
Weight with parabolic antenna
- Process fitting - Thread
- Process fitting - Flange
- Process fitting - Swivelling holder with flange
2.8 … 3.6 kg (6.2 … 13.7 lbs), depending on thread size and housing
5.0 … 16.2 kg (11 … 35.7 lbs), depending on the flange size and housing
6 … 17.2 kg (13.2 … 37.9 lbs),depending on the flange size and housing
Output variable
4 … 20 mA/HART
Output signal
4 … 20 mA/HART
Resolution
Fault signal
Current limitation
1.6 µA
current output unchanged; 20.5 mA; 22 mA; <3.6 mA (adjustable)
22 mA
Load
- Two-wire instrument - 4 … 20 mA/HART
- Four-wire instrument - 4 … 20 mA/HART
Integration time (63 % of the input variable)
Fulfilled NAMUR recommendation
see load diagram in Power supply
max. 500 Ohm2)
0 … 999 s, adjustable
NE 43
Profibus PA
Output signal
digital output signal, format acc. to IEEE-754
Sensor address
Current value
Integration time (63 % of the input variable)
126 (default setting)
constantly 10 mA; ±0.5 mA
0 … 999 s, adjustable
Foundation Fieldbus
Output
- Signal
- Physical layer
digital output signal, Foundation Fieldbus protocol
acc. to IEC 61158-2
Channel Numbers
- Channel 1
- Channel 2
- Channel 3
Transmission rate
Current value
Integration time (63 % of the input variable)
Primary value
Secondary value 1
Secondary Value 2
31.25 Kbit/s
10 mA; ±0.5 mA
0 … 999 s, adjustable
Input variable
29427-EN-060407
Parameter
Min. distance from antenna end
Max. measuring range
2)
distance between process fitting and product surface
400 mm (15.7 in)
70 m (230 ft)
With inductive load, ohmic share at least 25 Ohm/mH.
Radar – Level measurement of bulk solids
13
Technical data
Accuracy (similar to DIN EN 60770-1)
Reference conditions acc. to DIN EN 61298-1
- Temperature
- Relative humidity
- Atmospheric pressure
+18 … +30 °C (+64 … +86 °F)
45 … 75 %
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psi)
Characteristic curve deviation and measurement characteristics3)
Average temperature coefficient of the zero signal (temperature error)
Resolution, general
Frequency
Interval
Adjustment time4)
0.06 %/10 K
max. 1 mm
K-band
>typ. 4 s
>4 s (dependent on the parameter adjustment)
Received average emitted power reaching an object directly in front of the antenna
- Distance 1 m
108 nW per cm² (108x10-9 W/cm²)
- Distance 5 m
4.3 nW per cm² (4.3x10-9 W/cm²)
Beam angle with horn antenna, depending on the antenna diameter
- ø 40 mm (1.6 in)
22°
- ø 48 mm (1.9 in)
18°
- ø 75 mm (3 in)
10°
- ø 95 mm (3.7 in)
8°
Accuracy with horn antenna
see diagram
30 mm
15 mm
1,0 m
70 m
-15 mm
-30 mm
Fig. 22: Accuracy VEGAPULS 68 with horn antenna
Beam angle with parabolic antenna
Accuracy with parabolic antenna
4°
see diagram
40 mm
15 mm
2,0 m
70 m
-15 mm
-40 mm
Fig. 23: Accuracy VEGAPULS 68 with parabolic antenna
Ambient conditions
3)
4)
14
-40 … +80 °C (-40 … +176 °F)
-20 … +70 °C (-4 … +158 °F)
-20 … +60 °C (-4 … +140 °F)
Relating to the nominal range, incl. hysteresis and repeatability, determined acc. to the limit point method.
Time required to output the correct level (with max. 10 % deviation) after a sudden level change.
Radar – Level measurement of bulk solids
29427-EN-060407
Ambient, storage and transport temperature
- without indicating and adjustment module
- with indicating and adjustment module
- Version IP 66/IP 68 1 bar with connection cable PE
Technical data
Process conditions
Note the nominal pressure stage of the flange and temperature
derating acc. to the operating instructions manual!
Vessel pressure - Horn antenna
- without swivelling holder
- with swivelling holder
-1 … 40 bar/-100 … 4000 kPa (-14.5 … 580 psi)
-1 … 1 bar/-100 … 100 kPa (-14.5 … 14.5 psi) not sealing
Vessel pressure - Parabolic antenna
- without swivelling holder
- with swivelling holder
-1 … 6 bar/-100 … 6000 kPa (-14.5 … 87 psi)
-1 … 1 bar/-100 … 100 kPa (-14.5 … 14.5 psi) not sealing
Process temperature (measured on the process fitting), depending on the seal of the antenna system
- FKM (Viton)
-40 … +130 °C (-40 … +266 °F)
- FKM (Viton) with temperature adapter
-40 … +200 °C (-40 … +392 °F)
- Kalrez 2035, 6230
-15 … +130 °C (+5 … +266 °F)
- Kalrez 2035, 6230 with temperature adapter
-15 … +200 °C (+5 … +392 °F)
- Kalrez 6375
-20 … +130 °C (-4 … +266 °F)
- Kalrez 6375 with temperature adapter
-20 … +200 °C (-4 … +392 °F)
Vibration resistance
mechanical vibrations with 4 g and 5 … 100 Hz5)
Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar
Cable entry/plug 6)
- Single chamber housing
l
or:
l
or:
- Double chamber housing
1x closing cap ½ NPT, 1x blind plug ½ NPT
l
1x plug (depending on the version), 1x blind plug M20x1.5
l
1x cable entry M20x1.5 (cable-ø 5 … 9 mm), 1x blind stopper
M20x1.5; plug M12x1 for VEGADIS 61 (optional)
or:
l
or:
l
Spring-loaded terminals
1x cable entry M20x1.5 (cable-ø 5 … 9 mm), 1x blind stopper M20x1.5
1x closing cap ½ NPT, 1x blind stopper ½ NPT, plug M12x1 for VEGADIS 61 (optional)
1x plug (depending on the version), 1x blind stopper M20x1.5; plug
M12x1 for VEGADIS 61 (optional)
for wire cross sections up to 2.5 mm²
Electromechanical data - version IP 66/IP 68, 1 bar
Cable gland
- Single chamber housing
l
or:
- Double chamber housing
l
1x closing cap ½ NPT, 1x blind plug ½ NPT
l
1x IP 68 cable entry M20x1.5; 1x blind stopper M20x1.5; plug M12x1
for VEGADIS 61 (option)
or:
29427-EN-060407
l
5)
6)
1x IP 68 cable entry M20x1.5; 1x blind stopper M20x1.5
1x closing cap ½ NPT, 1x blind stopper ½ NPT, plug M12x1 for VEGADIS 61 (optional)
Tested acc. to the regulations of German Lloyd, GL directive 2
Depending on the version M12x1, acc. to DIN 43650, Harting, Amphenol-Tuchel, 7/8" FF; note plug protection.
Radar – Level measurement of bulk solids
15
Technical data
Connection cable
- Configuration
-
four cores, one suspension cable, one breather capillary, screen braiding,
foil, mantle
0.5 mm²
<0.036 Ohm/m
>1200 N (270 pounds force)
5 m (16.4 ft)
1000 m (3280 ft)
25 mm (with 25 °C/77 °F)
approx. 8 mm
Black
Blue
Blue
wire cross section
wire resistance
tensile load
Standard length
Max. length
Min. bending radius
Diameter
Colour - standard PE
Colour - standard PUR
Colour - Ex-version
Indicating and adjustment module
Power supply and data transmission
Display
Adjustment elements
through sensor via gold-plated sliding contacts (I²C bus)
LC display in full dot matrix
4 keys
Protection
- unassembled
- mounted into the sensor without cover
IP 20
IP 40
Materials
- Housing
- Inspection window
ABS
Polyester foil
Voltage supply VEGAPULS 68 - two-wire instrument
4 … 20 mA/HART
Voltage supply
- non-Ex instrument
- EEx ia instrument
- EExd ia instrument
15 … 36 V DC (14 … 36 V DC with VEGAMET)
15 … 30 V DC (14 … 30 V DC with VEGAMET)
20 … 36 V DC
Permissible residual ripple
- <100 Hz
- 100 Hz … 10 kHz
Load
Uss <1 V
Uss <10 mV
see voltage diagram
Ω
1000
750
3
500
2
1
250
4
15
16
18
20
22
24
26
28
30
32
34
36
V
Fig. 24: Voltage diagram VEGAPULS 68
1
2
3
4
HART load
Voltage limit EEx ia instrument
Voltage limit non-Ex-/Exd ia instrument
Voltage supply
29427-EN-060407
Profibus PA
Voltage supply
- non-Ex instrument
- EEx ia instrument
16
9 … 32 V DC
9 … 24 V DC
Radar – Level measurement of bulk solids
Technical data
Power supply by/max. number of sensors
- DP/PA segment coupler
- VEGALOG 571 EP card
max. 32 (max. 10 with Ex)
max. 15 (max. 10 with Ex)
Foundation Fieldbus
Voltage supply
- non-Ex instrument
- EEx ia instrument
9 … 32 V DC
9 … 24 V DC
Power supply by/max. number of sensors
- H1 Fieldbus cable/Voltage supply
max. 32 (max. 10 with Ex)
Voltage supply VEGAPULS 68 - four-wire instrument 4 … 20 mA
Four-wire instruments
Voltage supply
20 … 72 V DC, 20 … 253 V AC, 50/60 Hz
Power consumption
max. 4 VA; max. 2.1 W
Electrical protective measures
Protection
- Plastic housing
- Double chamber Alu-housing, four-wire instruments
- Alu and stainless steel housing, two-wire instruments
- Alu and stainless steel housing optional, two-wire instruments
Overvoltage category
Protection class
- two-wire, Profibus PA, Foundation Fieldbus
- four-wire
IP 66/IP 67
IP 66/IP 67
IP 66/IP 68 (0.2 bar)7)
IP 66/IP 68 (1 bar)
III
II
I
Approvals8)
ATEX ia
ATEX ia+d
ATEX D
IEC
FM
CSA
ATEX II 1G, 1/2G, 2G EEx ia IIC T5
ATEX II 1/2G, 2G EEx d ia IIC T5
ATEX II 1/2D IP6X T
IEC EEx ia IIC T5
FM Cl.I, Div2 (NI)+Cl.II, II, Div1 (DIP), FM Cl.I-III, Div 1 (IS), FM Cl.I-III, Div 1
(IS)+Cl.I-III, Div 1 Gr.C-G(XP)
CSA Cl.I, Div2 (NI)+Cl.II, II, Div1 (DIP), CSA Cl.I-III, Div 1 (IS), CSA Cl.I-III,
Div 1 (IS)+Cl.I-III, Div 1 Gr.C-G(XP)
CE conformity
EMC (89/336/EWG)
R & TTE directive
LVD (73/23/EWG)
Emission EN 61326: 1997 (class A), susceptibility EN 61326: 1997/A1:
1998
I-ETS 300-440 Expert opinion No. 0043052-02/SEE, Notified Body No.
0499
EN 61010-1: 2001
FCC conformity (only for USA/Canada)
Conformity
to part 15 of the FCC regulations
Environmental instructions
29427-EN-060407
VEGA environment management system9)
7)
8)
9)
certified acc. to DIN EN ISO 14001
Requirement to maintain the protection is the suitable cable.
Deviating data in Ex applications: see separate safety instructions.
You will find detailed information under www.vega.com.
Radar – Level measurement of bulk solids
17
Dimensions
Dimensions
~ 87mm (3 27/64")
116mm (4 9/16")
120mm (4 23/32")
112mm (4 13/32")
117mm (4 39/64")
M16x1,5
M20x1,5/
½ NPT
M20x1,5/
½ NPT
M20x1,5/
½ NPT
1
M20x1,5/
½ NPT
2
1
~ 116mm (4 9/16")
ø 84mm (3 5/16")
M20x1,5
3
4
3
4
46mm
(1 13/16")
G1½A/
1½ NPT
y
Fig. 25: Housing versions in protection IP 66/IP 67 and IP 66/IP 68, 0.2 bar (with
integrated PLICSCOM the housing is 9 mm/0.35 in higher)
1
2
3
4
2
Plastic housing
Stainless steel housing
Aluminium double chamber housing
Aluminium housing
mm
y
x
1½"
100
ø40
2"
120
ø48
3"
216
ø75
4"
430
ø95
inch
y
x
1½"
3 15/16"
4 23/32"
8 1/2"
16 59/64"
ø1 37/64"
ø1 57/64"
ø2 61/64"
ø3 47/64"
2"
3"
x
4"
118mm (4 41/64")
ø 84mm
(3 5/16")
ø 77mm
(3 1/32")
y
~ 69mm
(2 23/32")
ø 77mm
(3 1/32")
38mm (1 1/2")
~ 69mm
(2 23/32")
VEGAPULS 68 - horn antenna in threaded version with
rinsing air connection
22mm (55/64")
Housing versions in protection IP 66/IP67 and IP 66/IP 68,
0.2 bar
22mm (55/64")
7
Housing in protection IP 66/IP 68, 1 bar
x
~ 103mm
(4 1/16")
~ 105mm (4 9/64")
ø 84mm
(3 5/16")
ø 77mm
(3 1/32")
~ 150mm (5 29/32")
ø 84mm (3 5/16")
116mm (4 9/16")
120mm (4 23/32")
117mm (4 39/64")
M16x1,5
M20x1,5
M20x1,5
M20x1,5/
½ NPT
1
Fig. 28: VEGAPULS 68 - horn antenna in threaded version with purging air connection and reflux valve (option)
1
2
Standard
with temperature adapter
M20x1,5
2
3
VEGAPULS 68 - horn antenna in flange version
Fig. 26: Housing versions in protection IP 66/IP 68, 1 bar (with integrated
PLICSCOM the housing is 9 mm/0.35 in higher)
Stainless steel housing
Aluminium double chamber housing
Aluminium housing
2
x
k
D
118mm (4 41/64")
2
y
G1½A / 1½ NPT
22mm (55/64")
38mm (1 1/2")
1
46mm
(1 13/16")
22mm (55/64")
y
b
VEGAPULS 68 - horn antenna in threaded version
140mm (5 33/64")
d
1
60mm
(2 23/64")
1
2
3
mm
b
k
inch
4xø18
40
100
DN 40PN 40
5 29/32"
45/64" 4 21/64"
4xø45/64" 1 37/64" 3 15/16"
4xø18
48
120
DN 50 PN 40
6 1/2"
25/32" 4 59/64"
4xø45/64" 1 57/64" 4 23/32"
216
DN 80 PN 40
7 7/8"
15/16" 6 19/64"
8xø45/64" 2 61/64"
430
DN 100 PN 16
100
ø40
DN 80 PN 40
200
24
160
8xø18
75
2"
120
ø48
DN 100 PN 16
220
20
180
8xø18
95
3"
216
ø75
DN 150 PN 16
285
22
240
8xø22
95
430
DN 150 PN 16
4"
430
ø95
2" 150 lb
1½"
2"
3"
4"
y
8 1/2" ø2 61/64"
16 59/64" ø3 47/64"
x
Fig. 27: VEGAPULS 68 - horn antenna in threaded version
k
y
110
125
1½"
y
x
3 15/16" ø1 37/64"
4 23/32" ø1 57/64"
b
x
18
20
x
inch
D
d
150
165
y
x
1
2
D
DN 40 PN 40
DN 50 PN 40
mm
d
x
y
8 1/2"
8 21/32" 25/32" 7 3/32" 8xø45/64" 3 47/64" 16 59/64"
11 7/32" 55/64" 9 29/64" 8xø55/64" 3 47/64" 16 59/64"
4xø19,1
48
120
2" 150 lb
6"
3/4"
4 3/4"
4xø3/4"
1 57/64" 4 23/32"
3" 150 lb
190,5
23,9
152,4
4xø19,1
75
216
3" 150 lb
7 1/2"
15/16"
6"
4xø3/4"
2 61/64"
4" 150 lb
228,6
23,9
190,5
8xø19,1
95
430
4" 150 lb
9"
15/16"
7 1/2"
8xø3/4"
3 47/64" 16 59/64"
6" 150 lb
279,4
25,4
241,3
8xø22,4
95
430
6" 150 lb
11"
1"
9 1/2"
8xø7/8"
3 47/64" 16 59/64"
152,4
19,1
120,7
8 1/2"
Fig. 29: VEGAPULS 68 - horn antenna in flange version
1
2
Standard
with temperature adapter
Standard
with temperature adapter
29427-EN-060407
18
Radar – Level measurement of bulk solids
Dimensions
VEGAPULS 68 - horn antenna and swivelling holder
VEGAPULS 68 - parabolic antenna in flange version
max. 15
°
(19/32")
2
1
2
D
k
m (4 23
/32 ")
b
y
x
1½"
100
ø40
2"
120
ø48
3"
216
ø75
128mm
(5 3/64")
2 0m m
( 25/
32 ")
mm
4"
430
inch
y
x
1½"
2"
3"
3 15/16"
4 23/32"
8 1/2"
16 59/64"
ø1 37/64"
ø1 57/64"
ø2 61/64"
ø3 47/64"
4"
d
1 2 0m
2 0m m
( 25/
32 ")
ø95
ø 243mm (9 9/16")
y
y
x
b
k
d
x
mm
mm
D
b
k
d
inch
D
DN 50 / 2"
165
11,5
122,8
4xø19
DN 50 / 2"
6 1/2"
29/64" 4 53/64"
DN 80 / 3"
200
11,5
156,2
4xø21
DN 80 / 3"
7 7/8"
29/64"
6 5/32"
4xø53/64"
DN 100 / 4"
220
11,5
182,5
4xø22
DN 100 / 4" 8 21/32"
29/64"
7 3/16"
8xø55/64"
b
k
d
4xø3/4"
D
Fig. 30: VEGAPULS 68 - horn antenna and swivelling holder
Standard
with temperature adapter
b
k
inch
d
D
b
k
d
DN 40 PN 40
150
18
110
4xø18
DN 40PN 40
5 29/32"
45/64" 4 21/64"
4xø45/64"
DN 50 PN 40
165
20
125
4xø18
DN 50 PN 40
6 1/2"
25/32" 4 59/64"
4xø45/64"
7 7/8"
15/16" 6 19/64"
8xø45/64"
DN 80 PN 40
200
24
160
8xø18
DN 80 PN 40
DN 100 PN 16
220
20
180
8xø18
DN 100 PN 16
8 21/32"
25/32"
7 3/32"
8xø45/64"
DN 150 PN 16
285
22
240
8xø22
DN 150 PN 16
11 7/32"
55/64" 9 29/64"
8xø55/64"
152,4
19,1
120,7
4xø19,1
2" 150 lb
6"
3/4"
2" 150 lb
1
2
60mm
(2 23/64")
4 0m m
(1 37/
64 ")
D
140mm (5 33/64")
1
4 3/4"
4xø3/4"
3" 150 lb
190,5
23,9
152,4
4xø19,1
3" 150 lb
7 1/2"
15/16"
6"
4xø3/4"
4" 150 lb
228,6
23,9
190,5
8xø19,1
4" 150 lb
9"
15/16"
7 1/2"
8xø3/4"
6" 150 lb
279,4
25,4
241,3
8xø22,4
6" 150 lb
11"
1"
9 1/2"
8xø7/8"
Fig. 32: VEGAPULS 68 - parabolic antenna in flange version
VEGAPULS 68 - parabolic antenna in threaded version
1
2
Standard
with temperature adapter
2
2
4 0m m
(1 37/
64 ")
D
k
1 2 0m
b
m (4 23
/32 ")
22mm (55/64")
128mm
(5 3/64")
G1½A / 1½ NPT
1
118mm (4 41/64")
1
46mm
(1 13/16")
max. 15
°
(19/32")
22mm (55/64")
38mm (1 1/2")
VEGAPULS 68 - parabolic antenna and swivelling holder
d
1 3 0m
m (5 1
/8 ")
ø 243mm (9 9/16")
ø 243
mm (9
9/
16 ")
Fig. 31: VEGAPULS 68 - parabolic antenna in threaded version
1
2
Standard
with temperature adapter
d
inch
D
b
k
DN 50 / 2"
165
11,5
122,8
4xø19
DN 50 / 2"
6 1/2"
29/64"
4 53/64"
4xø3/4"
DN 80 / 3"
mm
200
11,5
156,2
4xø21
DN 80 / 3"
7 7/8"
29/64"
6 5/32"
4xø53/64"
DN 100 / 4"
8 21/32"
29/64"
7 3/16"
8xø55/64"
DN 100 / 4"
D
220
b
11,5
k
182,5
4xø22
d
Fig. 33: VEGAPULS 68 - parabolic antenna and swivelling holder
Standard
with temperature adapter
29427-EN-060407
1
2
Radar – Level measurement of bulk solids
19
Product code
8
Product code
VEGAPULS 68
Approval
XX without
CX ATEX II 1G, 1/2G, 2G EEx ia IIC T5
CK ATEX II 1G, 1/2G, 2G EEx ia IIC T5+ATEX II 1/2 D IP6X T 1)
DX ATEX II 1/2G, 2G EEx d ia IIC T5 2)
GX ATEX II 1/2 D IP6X T 1)
Version / Material
B with horn antenna ø40 mm / 316L
C with horn antenna ø48 mm / 316L
D with horn antenna ø75 mm / 316L
E with horn antenna ø95 mm / 316L
K with parabolic antenna ø245 mm / 316L
Process connection / Material
GD Thread G1½A PN40 / 316L
ND Thread 1½NPT PN40 / 316L
1C Swivelling holder with flange DN50/2" / 316L
1D Swivelling holder with flange DN80/3" / 316L
1E Swivelling holder with flange DN100/4" / 316L
FC Flange DN50PN40 Form C, DIN2501 / 316L
FD Flange DN80PN40 Form C, DIN2501 / 316L
FE Flange DN100PN16 Form C, DIN2501 / 316L
FK Flange DN150PN16 Form C, DIN2501 / 316L
AE Flange 2" 150lb RF, ANSI B16.5 / 316L
AI Flange 3" 150lb RF, ANSI B16.5 / 316L
AK Flange 4" 150lb RF, ANSI B16.5 / 316L
AM Flange 6" 150lb RF, ANSI B16.5 / 316L
Seal / Process temperature
2 FKM (Viton) / -40...130°C
3 Kalrez 6375 / - 20...130ºC
4 FKM (Viton) / -40...200°C
5 Kalrez 6375 / -20...200°C
Electronics
H Two-wire 4...20mA/HART®
V Four wire 4...20mA/HART® 2)
P Profibus PA
F Foundation Fieldbus
Housing / Protection
K Plastic / IP66/IP67
A Aluminium / IP66/IP68 (0.2 bar)
D Aluminium double chamber / IP66/IP68 (0.2 bar)
V Stainless steel 316L / IP66/IP68 (0.2bar)
Cable entry / Plug connection
M M20x1.5 / without
N ½NPT / without
Indicating/adjustment module (PLICSCOM)
X without
A top mounted
PS68.
1)
2)
Only in conjunction with Housing / Protection "A","D" or "V"
Only in conjunction with Housing / Protection "D"
29427-EN-060407
20
Radar – Level measurement of bulk solids
29427-EN-060407
Radar – Level measurement of bulk solids
21
29427-EN-060407
22
Radar – Level measurement of bulk solids
29427-EN-060407
Radar – Level measurement of bulk solids
23
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
Phone +49 7836 50-0
Fax +49 7836 50-201
E-Mail: info@de.vega.com
www.vega.com
You can find at www.vega.com
downloads of the following
l operating instructions manuals
l menu schematics
l software
l certificates
l approvals
and much, much more
29427-EN-060407