Vega VEGAPULS 68 User manual

Operating Instructions
VEGAPULS 68
Probus PA
Document ID: 29263

2
Contents
VEGAPULS 68 • Probus PA
29263-EN-190102
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 Safety label on the instrument .......................................................................................... 6
2.6 EU conformity................................................................................................................... 6
2.7 Fulllment of NAMUR recommendations ......................................................................... 6
2.8 Radio license for Europe .................................................................................................. 6
2.9 FCC and IC conformity (only for USA/Canada) ................................................................ 6
2.10 Installation and operation in the USA and Canada ........................................................... 7
2.11 Environmental instructions ............................................................................................... 7
3 Product description................................................................................................................. 8
3.1 Conguration.................................................................................................................... 8
3.2 Principle of operation...................................................................................................... 10
3.3 Packaging, transport and storage................................................................................... 10
3.4 Accessories and replacement parts ............................................................................... 11
4 Mounting................................................................................................................................. 13
4.1 General instructions ....................................................................................................... 13
4.2 Mounting preparations - Horn antenna........................................................................... 15
4.3 Mounting preparations - Parabolic antenna.................................................................... 16
4.4 Mounting instructions ..................................................................................................... 17
5 Connecting to power supply................................................................................................. 26
5.1 Preparing the connection ............................................................................................... 26
5.2 Connection procedure.................................................................................................... 27
5.3 Wiring plan, single chamber housing.............................................................................. 28
5.4 Wiring plan, double chamber housing ............................................................................ 30
5.5 Wiring plan, double chamber housing Ex d .................................................................... 32
5.6 Wiring plan - version IP 66/IP 68, 1 bar........................................................................... 34
5.7 Switch-on phase............................................................................................................. 34
6 Set up with the display and adjustment module PLICSCOM ............................................ 35
6.1 Short description ............................................................................................................ 35
6.2 Insert display and adjustment module............................................................................ 35
6.3 Adjustment system......................................................................................................... 36
6.4 Setup steps .................................................................................................................... 37
6.5 Menu schematic............................................................................................................. 50
6.10 Saving the parameterisation data................................................................................... 52
7 Set up with PACTware and other adjustment programs .................................................... 53
7.1 Connect the PC.............................................................................................................. 53
7.2 Parameter adjustment with PACTware............................................................................ 54
7.3 Parameter adjustment with PDM.................................................................................... 55
7.4 Saving the parameterisation data................................................................................... 55

3
Contents
VEGAPULS 68 • Probus PA
29263-EN-190102
8 Maintenanceandfaultrectication...................................................................................... 56
8.1 Maintenance, cleaning ................................................................................................... 56
8.2 Rectify faults................................................................................................................... 56
8.3 Exchanging the electronics module................................................................................ 57
8.4 Software update ............................................................................................................. 58
8.5 How to proceed if a repair is necessary.......................................................................... 58
9 Dismount................................................................................................................................. 59
9.1 Dismounting steps.......................................................................................................... 59
9.2 Disposal ......................................................................................................................... 59
10 Supplement ............................................................................................................................ 60
10.1 Technical data ................................................................................................................ 60
10.2 Probus PA..................................................................................................................... 66
10.3 Dimensions .................................................................................................................... 69
10.4 Industrial property rights................................................................................................. 83
10.5 Trademark ...................................................................................................................... 83
Safety instructions for Ex areas
Take note of the Ex specic safety instructions for Ex applications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions.
Editing status: 2018-12-18

4
1 About this document
VEGAPULS 68 • Probus PA
29263-EN-190102
1 About this document
1.1 Function
This operating instructions provides all the information you need for
mounting, connection and setup as well as important instructions for
maintenance, fault rectication, the exchange of parts and the safety
of the user. Please read this information before putting the instrument
into operation and keep this manual accessible in the immediate
vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained personnel.
The contents of this manual must be made available to the qualied
personnel and implemented.
1.3 Symbols used
Document ID
This symbol on the front page of this instruction refers to the Docu-
ment ID. By entering the Document ID on www.vega.com you will
reach the document download.
Information, tip, note
This symbol indicates helpful additional information.
Caution: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
Ex applications
This symbol indicates special instructions for Ex applications.
SIL applications
This symbol indicates instructions for functional safety which must be
taken into account particularly for safety-relevant applications.
• List
The dot set in front indicates a list with no implied sequence.
→ Action
This arrow indicates a single action.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

5
2 For your safety
VEGAPULS 68 • Probus PA
29263-EN-190102
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
only by trained, qualied personnel authorised by the plant operator.
During work on and with the device, the required personal protective
equipment must always be worn.
2.2 Appropriate use
VEGAPULS 68 is a sensor for continuous level measurement.
You can nd detailed information about the area of application in
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
used according to the specications in the operating instructions
manual as well as possible supplementary instructions.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
trary conversions or modications are explicitly forbidden.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specic hazards, e.g. vessel overll or damage to system
components through incorrect mounting or adjustment. Thus dam-
age to property, to persons or environmental contamination can be
caused. Also the protective characteristics of the instrument can be
inuenced.
2.4 General safety instructions
This is a high-tech instrument requiring the strict observance of stand-
ard regulations and guidelines. The user must take note of the safety
instructions in this operating instructions manual, the country-specic
installation standards as well as all prevailing safety regulations and
accident prevention rules. For safety reasons, only the accessory
specied by the manufacturer must be used.
Depending on the model, the emitting frequencies of all radar sensors
are either in the C or K band range. The low transmitting power lies far
below the internationally permitted limit values. When the instrument
is used correctly, it presents no danger to human health. It may be
operated without restriction outside of closed metallic vessels.
The instrument must only be operated in a technically awless and
reliable condition. The operator is responsible for the trouble-free
operation of the instrument. When measuring aggressive or corrosive
media that can cause a dangerous situation if the instrument malfunc-
tions, the operator has to implement suitable measures to make sure
the instrument is functioning properly.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the

6
2 For your safety
VEGAPULS 68 • Probus PA
29263-EN-190102
current valid rules and regulations and also take note of new regula-
tions.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed and their meaning read in this oper-
ating instructions manual.
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 EU conformity
The device fulls the legal requirements of the applicable EU direc-
tives. By axing the CE marking, we conrm the conformity of the
instrument with these directives.
You can nd the EU conformity declaration on our website under
www.vega.com/downloads.
2.7 FulllmentofNAMURrecommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
accepted as the standard in eld instrumentation.
The device fulls the requirements of the following NAMUR recom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE 43 – Signal level for fault information from measuring transduc-
ers
• NE 53 – Compatibility of eld devices and display/adjustment
components
For further information see www.namur.de.
2.8 RadiolicenseforEurope
The instrument was tested according to the latest issue of the follow-
ing harmonized standards:
• EN 302372 - Tank Level Probing Radar
It is hence approved for use inside closed vessels in countries of the
EU.
Use is also approved in EFTA countries, provided the respective
standards have been implemented.
For operation inside of closed vessels, points a to f in annex E of
EN 302372 must be fullled.
2.9 FCC and IC conformity (only for USA/Canada)
VEGAPULS sensors with all antenna versions are FCC and IC ap-
proved:
• FCC ID: O6QPULS68
• IC: 3892A-PS68

7
2 For your safety
VEGAPULS 68 • Probus PA
29263-EN-190102
Modications not expressly approved by VEGA will lead to expiry of
the operating licence according to FCC.
VEGAPULS 68 is in conformity with part 15 of the FCC regulations.
Take note of the respective operating regulations:
• This device may not cause interference, and
• The device must be resistant to interference signals, including
such that may cause undesired operating states of the device
2.10 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.
2.11 Environmental instructions
Protection of the environment is one of our most important duties.
That is why we have introduced an environment management system
with the goal of continuously improving company environmental pro-
tection. The environment management system is certied according
to DIN EN ISO 14001.
Please help us full this obligation by observing the environmental
instructions in this manual:
• Chapter "Packaging, transport and storage"
• Chapter "Disposal"

8
3 Product description
VEGAPULS 68 • Probus PA
29263-EN-190102
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Radar sensor
• Documentation
– Quick setup guide VEGAPULS 68
– Instructions for optional instrument features
– Ex-specic "Safety instructions" (with Ex versions)
– If necessary, further certicates
Information:
In this operating instructions manual, the optional instrument features
are described. The respective scope of delivery results from the order
specication.
The VEGAPULS 68 consists of the components:
• Horn or parabolic antenna
• process tting (depending on the version ange or thread)
• Optionally available with swivelling holder (only with ange), rins-
ing air connection, reux valve
• Housing with electronics, optionally available with plug connector,
optionally available with connection cable
• Housing cover, optionally available with display and adjustment
module PLICSCOM
The components are available in dierent versions.
Scope of delivery
Constituent parts

9
3 Product description
VEGAPULS 68 • Probus PA
29263-EN-190102
1
2
3
4
Fig. 1: VEGAPULS 68 - horn antenna and swivelling holder
1 Housing cover with integrated PLICSCOM (optional)
2 Housing with electronics
3 Swivellingholderwithange
4 Horn antenna
The type label contains the most important data for identication and
use of the instrument:
• Instrument type
• Article and serial number device
• Article numbers, documentation
• Technical data: Approvals, antenna type, process tting, process
seal/temperature, signal output, voltage supply, protection, protec-
tion class
With the serial number, you can access the delivery data of the instru-
ment via "www.vega.com", "VEGA Tools" and "Instrument search".
You can nd the serial number on the inside of the instrument as well
as on the type label on the outside.
This operating instructions manual applies to the following instrument
versions:
• Hardware version ≤ 1.10
• Software version ≤ 3.90
Type label
Scope of this operating
instructions

10
3 Product description
VEGAPULS 68 • Probus PA
29263-EN-190102
3.2 Principle of operation
VEGAPULS 68 is a radar sensor in K-band technology for continuous
level measurement of solids.
A version of VEGAPULS 68 is available for each area of application.
• The version with horn antenna is particularly suitable for measure-
ment of virtually all bulk solids in small silos and vessels.
• The version with parabolic antenna is particularly suitable for large
silos and vessels with up to 70 m (76 yd) measuring distance and
for measurement of solids with low dielectric gure.
VEGAPULS 68 is also suitable for applications in liquids.
The antenna of the radar sensor emits short radar pulses with a
duration of approx. 1 ns. These pulses are reected by the product
and received by the antenna as echoes. The transit time of the radar
pulses from emission to reception is proportional to the distance and
hence to the level. The determined level is converted into an appropri-
ate output signal and outputted as measured value.
Power supply via the Probus DP/PA segment coupler or VEGALOG
571 EP cards. A two-wire cable according to Probus specication
serves as carrier of both power and digital data transmission for mul-
tiple sensors. The instrument prole of VEGAPULS 68 corresponds to
prole specication version 3.0.
The GSD (instrument master les) and bitmap les necessary for
planning your Probus-DP-(PA) communication network are available
from the download section on the VEGA homepage "www.vega.com"
under "Services-Downloads-Software-Probus". There you can
also nd the appropriate certicates. In a PDM environment, an EDD
(Electronic Device Description) is also required to enable the full
range of sensor functions (also available as a download).A CD with
the appropriate les can be ordered via e-mail under [e-mail].
com or by phone from one of the VEGA agencies under the order
number "DRIVER.S".
The backlight of the display and adjustment module is powered by the
sensor. Prerequisite is a certain level of operating voltage.
The data for power supply are specied in chapter "Technical data".
The optional heating requires its own operating voltage. You can nd
detailed information in the supplementary instructions manual "Heat-
ing for display and adjustment module". This function is generally not
available for approved instruments.
3.3 Packaging, transport and storage
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 of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
Application area
Functional principle
Power supply and bus
communication
GSD/EDD
Packaging

11
3 Product description
VEGAPULS 68 • Probus PA
29263-EN-190102
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
• Not in the open
• Dry and dust free
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
• Storage and transport temperature see chapter "Supplement -
Technicaldata-Ambientconditions"
• Relative humidity 20 … 85 %
With instrument weights of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
3.4 Accessories and replacement parts
The display and adjustment module PLICSCOM is used for measured
value indication, adjustment and diagnosis. It can be inserted into the
sensor or the external display and adjustment unit and removed at
any time.
The integrated Bluetooth module (optional) enables wireless adjust-
ment via standard adjustment devices:
• Smartphone/tablet (iOS or Android operating system)
• PC/notebook with Bluetooth USB adapter (Windows operating
system)
You can nd further information in the operating instructions "Display
and adjustment module PLICSCOM" (Document-ID 36433).
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC. For
parameter adjustment of these instruments, an adjustment software
such as PACTware with VEGA DTM is required.
You can nd further information in the operating instructions "Interface
adapter VEGACONNECT" (Document-ID 32628).
Transport
Transport inspection
Storage
Storage and transport
temperature
Lifting and carrying
PLICSCOM
VEGACONNECT

12
3 Product description
VEGAPULS 68 • Probus PA
29263-EN-190102
The VEGADIS 81 is an external display and adjustment unit for VEGA
plics®sensors.
For sensors with double chamber housing the interface adapter
"VEGADIS adapter" is also required for VEGADIS 81.
You can nd further information in the operating instructions
"VEGADIS 81" (Document-ID 43814).
The protective cover protects the sensor housing against soiling and
intense heat from solar radiation.
You will nd additional information in the supplementary instructions
manual "Protective cover" (Document-ID 34296).
Flanges are available in dierent versions according to the following
standards: DIN 2501, EN 1092-1, ANSI B 16.5, JIS B 2210-1984,
GOST 12821-80.
You can nd additional information in the supplementary instructions
manual "Flanges according to DIN-EN-ASME-JIS" (Document-ID
31088).
Electronics module "VEGAPULS series 60" is a replacement part for
radar sensors of VEGAPULS series 60. A dierent version is available
for each type of signal output.
You can nd further information in the operating instructions "Elec-
tronics module VEGAPULS series 60" (Document-ID 30176).
The antenna impedance cone is a replacement part used for optimum
transmission of microwaves and for sealing against the process.
You nd further information in the mounting instructions "Antenna
impedance cone VEGAPULS 62 and 68" (Document-ID 31381).
The antenna covers can be retrotted to the VEGAPULS 68 radar
sensors. They prevent from dust accumulating on the antenna system.
You nd further information in the mounting instructions "Antenna cov-
ers VEGAPULS 68" (Document-ID 33543).
VEGADIS 81
Protective cover
Flanges
Electronics module
Antenna impedance cone
Antenna covers

13
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
4 Mounting
4.1 General instructions
Select an installation position you can easily reach for mounting and
connecting as well as later retrotting of a display and adjustment
module. The housing can be rotated by 330° without the use of any
tools. You can also install the display and adjustment module in four
dierent positions (each displaced by 90°).
Warning:
With threaded versions, the housing must not be used to screw in the
instrument! Applying tightening forces on the housing can damage its
internal parts.
Use the recommended cables (see chapter "Connecting to power
supply") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable gland. Rain and condensation water can thus drain o. This
applies mainly to outdoor mounting as well as installation in areas
where high humidity is expected (e.g. through cleaning processes) or
on cooled or heated vessels.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
Make sure that the degree of contamination specied in chapter
"Technical data" meets the existing ambient conditions.
Fig. 2: Measures against moisture ingress
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPTthread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Installation position
Screwing in
Moisture
Cableentries-NPT
thread
Cable glands

14
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
The reference plane for the measuring range of the sensors is the
lower edge of the ange or the seal surface of the thread.
1 32
100%
0%
4
Fig. 3: Measuring range (operating range), max. measuring distance and refer-
ence plane
1 full
2 empty (max. measuring distance)
3 Measuring range
4 Reference plane
Information:
If the medium reaches the antenna, buildup can form on it and cause
faulty measurements later on.
The emitted radar pulses of VEGAPULS 68 are electromagnetic
waves. They thus have electrical and magnetical components that are
perpendicular to each other. The polariation is dened by the direction
of the electrical component. With radar sensors, the polarisation can
be used to considerably reduce the eect of false echoes by turning
the instrument in the connection ange or mounting boss. The posi-
tion of the polarisation is marked on the instrument.
Measuring range
Polarisation

15
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
1
Fig. 4: Position of the polarisation of VEGAPULS 68
1 Marking hole
Make sure that all parts of the instrument coming in direct contact
with the process, especially the sensor element, process seal and
process tting, are suitable for the existing process conditions, such
as process pressure, process temperature as well as the chemical
properties of the medium.
You can nd the specications in chapter "Technical data" and on the
nameplate.
The instrument is suitable for standard and extended ambient condi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1.
4.2 Mounting preparations - Horn antenna
VEGAPULS 68 is also available in versions where the antenna has a
bigger diameter than the process tting (thread, ange). The antenna
must therefore be disconnected from the process tting before mount-
ing. Proceed as follows:
1. Loosen the hexagon socket screws (3) on the antenna socket
with an Allen wrench (size 3)
2. Remove the antenna (4)
Note:
The plastic cone may not be pulled out of the antenna socket.
3. Insert the antenna from below into the vessel socket and secure it
against falling o
4. Retighten the antenna with hexagon screws to the antenna
socket; torque max. 10 Nm (7.5 lbf ft)
Note:
The VEGAPULS 68 with rinsing air connection or antenna exten-
sion is provided with a notch on the antenna socket. This notch must
correspond to the marking on the hexagon of the process tting (the
marking species the position of the polarisation of the radar signal).
Suitability for the process
conditions
Suitability for the ambient
conditions

16
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
4
3
5
1
2
Fig. 5: Dismounting of the horn antenna
1 Marking
2 Notch
3 Hexagon screws on the antenna socket
4 Antenna
4.3 Mounting preparations - Parabolic antenna
VEGAPULS 68 is also available in versions where the antenna has
a diameter larger than the process tting (thread, ange). With such
versions the antenna must be disconnected from the process tting
before mounting. Proceed as follows:
1. Clamp VEGAPULS 68 with the ange, e.g. in a bench vice
2. Hold the connection piece (3) with a wrench (spanner size 22) on
the attenings
3. Loosen counter nut (2) with spanner size 36 completely in the
direction antenna
4. Loosen compression nut (1) with a wrench SW 41 completely in
the direction of the antenna
5. Remove the parabolic antenna (4) axially
6. Mount sensor ange on the adapter ange and fasten it tightly
7. Check if the O-ring seal is present on the connection piece and
make sure it is not damaged.
Note:
A damaged O-ring seal must be replaced: FKM article no. 2.28248,
FFKM (Kalrez 6375) article no. 2.27351
8. Remount the parabolic antenna (4)
9. Tighten compression nut (1) with SW 41, torque max. 50 Nm
10. Tighten counter nut (2) with SW 36, torque max. 40 Nm.
Note:
Take note for VEGAPULS 68 with rinsing air connection that the holes
in the antenna and in the process tting correspond. This ensures a

17
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
sucient air ow (the air is led through the holes to the feed system. A
rinsing of the parabolic antenna in total is not intended).
1
2
3
4
Fig.6:Dismounting,parabolicantenna
1 Compression nut
2 Counter nut
3 Connection piece
4 Parabolicantenna
4.4 Mounting instructions
The illustrations with the following mounting instructions show a
VEGAPULS 68 with horn antenna. The mounting instructions apply
analogously also to the version with parabolic antenna.
Mount the sensor at least 200 mm (7.874 in) away from the vessel
wall.
> 200 mm
(7.87
")
Fig. 7: Installation position
1 Reference plane
If you cannot maintain this distance, you should carry out a false
signal suppression during setup. This applies particularly if buildup on
the vessel wall is expected. In such cases, we recommend repeating
the false signal suppression at a later date with existing buildup.
To measure as much of the vessel volume as possible, the sensor
should be aligned so that the measuring beam reaches the lowest
level in the vessel. In a cylindrical silo with conical outlet, the easiest
way is to mount the instrument in the center of the silo.
Horn and parabolic
antenna
Installation position
Orientation

18
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
rrr...
/
13
/
12
Fig. 8: Orientation
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 description shows a simple way to determine the
required angle of inclination.

19
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
d
a
α
Fig. 9: Proposal for installation after orientation VEGAPULS 68
The angle of inclination depends on the vessel dimensions. It can be
easily checked with a suitable level or water leve on the sensor.
Tip:
VEGA recommends the adjusting aid from VEGA line of accessory.
This is a round, direction-independent water level which is simply
place to the sensor housing.
The following table species the distance "a" between installation
position and vessel centre dependent on the measuring distance for
inclination angles of 2° … 10°.
Distance d
(m)
2° 4° 6° 8° 10°
2 0.1 0.1 0.2 0.3 0.4
4 0.1 0.3 0.4 0.6 0.7
6 0.2 0.4 0.6 0.8 1.1
8 0.3 0.6 0.8 1.1 1.4
10 0.3 0.7 1.1 1.4 1.8
15 0.5 1.0 1.6 2.1 2.6
20 0.7 1.4 2.1 2.8 3.5
25 0.9 1.7 2.6 3.5 4.4
30 1.0 2.1 3.2 4.2 5.3
35 1.2 2.4 3.7 4.9 6.2

20
4 Mounting
VEGAPULS 68 • Probus PA
29263-EN-190102
Distance d
(m)
2° 4° 6° 8° 10°
40 1.4 2.8 4.2 5.6 7.1
45 1.6 3.1 4.7 6.3 7.9
50 1.7 3.5 5.3 7 8.8
55 1.9 3.8 5.8 7.7 9.7
60 2.1 4.2 6.3 8.4 10.6
65 2.3 4.5 6.8 9.1 11.5
70 2.4 4.9 7.4 9.8 12.3
Example:
In a vessel 20 m high, the installation position of the sensor is 1.4 m
from the vessel centre.
The necessary angle of inclination of 4° can be read out from this
table.
Proceed as follows to adjust the angle of inclination with the swivelling
holder:
1. Loosen terminal screw of the swivelling holder with a fork spanner
SW 13
2. Align the sensor, check angle of inclination
Information:
The max. angle of inclination of the swivelling holder is approx. 15°
3. Tighten the terminal screw, torque max. 15 Nm.
Information:
The hexagon screws must not be loosened.
Mounting should not be too close to the inowing material as the
microwave signal will be interferred. The optimum mounting position is
on the opposite of the lling. To avoid strong pollution, the distance to
the lter or dust extraction must be as big as possible.
Inowingmedium