Vega VEGAFLEX 81 Bedienungsanleitung
Operating Instructions
TDR sensor for continuous level and
interface measurement of liquids
VEGAFLEX 81
Probus PA
Coax probe
Document ID: 44214
2
Contents
VEGAFLEX 81 • Probus PA
44214-EN-231206
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 Conformity........................................................................................................................ 5
2.6 NAMUR recommendations .............................................................................................. 6
2.7 Installation and operation in the USA and Canada ........................................................... 6
2.8 Safety instructions for Ex areas ........................................................................................ 6
2.9 Environmental instructions ............................................................................................... 6
3 Product description ................................................................................................................. 8
3.1 Conguration.................................................................................................................... 8
3.2 Principle of operation........................................................................................................ 8
3.3 Packaging, transport and storage................................................................................... 10
3.4 Accessories.................................................................................................................... 11
4 Mounting................................................................................................................................. 12
4.1 General instructions ....................................................................................................... 12
4.2 Mounting instructions ..................................................................................................... 13
5 Connecting to power supply................................................................................................. 16
5.1 Preparing the connection ............................................................................................... 16
5.2 Connecting..................................................................................................................... 17
5.3 Wiring plan - single chamber housing ............................................................................ 18
5.4 Wiring plan - double chamber housing........................................................................... 18
5.5 Double chamber housing with VEGADIS-Adapter.......................................................... 20
5.6 Wiring plan - version IP66/IP68 (1 bar)........................................................................... 21
5.7 Set instrument address .................................................................................................. 21
5.8 Switch-on phase............................................................................................................. 22
6 Set up with the display and adjustment module ................................................................ 23
6.1 Insert display and adjustment module............................................................................ 23
6.2 Adjustment system......................................................................................................... 24
6.3 Parameter adjustment - Quick setup .............................................................................. 26
6.4 Parameter adjustment - Extended adjustment................................................................ 26
6.5 Save parameter adjustment data.................................................................................... 45
7 Set up with smartphone/tablet/PC/notebook via Bluetooth.............................................. 46
7.1 Preparations................................................................................................................... 46
7.2 Connecting..................................................................................................................... 47
7.3 Sensor parameter adjustment........................................................................................ 48
8 Setup with PACTware............................................................................................................. 49
8.1 Connect the PC.............................................................................................................. 49
8.2 Parameter adjustment .................................................................................................... 49
8.3 Set up with the quick setup............................................................................................. 50
8.4 Save parameter adjustment data.................................................................................... 52
3
Contents
VEGAFLEX 81 • Probus PA
44214-EN-231206
9 Set up with other systems .................................................................................................... 53
9.1 DD adjustment programs ............................................................................................... 53
10 Diagnosis, asset management and service ........................................................................ 54
10.1 Maintenance .................................................................................................................. 54
10.2 Measured value and event memory ............................................................................... 54
10.3 Asset Management function........................................................................................... 55
10.4 Rectify faults................................................................................................................... 58
10.5 Exchanging the electronics module................................................................................ 61
10.6 Software update............................................................................................................. 62
10.7 How to proceed if a repair is necessary.......................................................................... 62
11 Dismount................................................................................................................................. 63
11.1 Dismounting steps.......................................................................................................... 63
11.2 Disposal ......................................................................................................................... 63
12 Supplement ............................................................................................................................ 64
12.1 Technical data ................................................................................................................ 64
12.2 Device communication Probus PA................................................................................ 73
12.3 Dimensions .................................................................................................................... 77
12.4 Industrial property rights................................................................................................. 81
12.5 Trademark ...................................................................................................................... 81
Editing status: 2023-12-04
4
1 About this document
VEGAFLEX 81 • Probus PA
44214-EN-231206
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance, fault rectication, safety and the exchange of parts. 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 qualied
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, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Disposal
This symbol indicates special instructions for disposal.
5
2 For your safety
VEGAFLEX 81 • Probus PA
44214-EN-231206
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
only by trained and authorized personnel.
During work on and with the device, the required personal protective
equipment must always be worn.
2.2 Appropriate use
VEGAFLEX 81 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 specications in the operating instructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specic hazards, e.g. vessel overll through incorrect mounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives. The instrument must only be operated in
a technically awless and reliable condition. The operating company
is responsible for the trouble-free operation of the instrument. When
measuring aggressive or corrosive media that can cause a danger-
ous situation if the instrument malfunctions, the operating company
has to implement suitable measures to make sure the instrument is
functioning properly.
The safety instructions in this operating instructions manual, the
national installation standards as well as the valid safety regulations
and accident prevention rules must be observed.
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 us. Arbitrary conversions
or modications are explicitly forbidden. For safety reasons, only the
accessory specied by us must be used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.
2.5 Conformity
The device complies with the legal requirements of the applicable
country-specic directives or technical regulations. We conrm con-
formity with the corresponding labelling.
6
2 For your safety
VEGAFLEX 81 • Probus PA
44214-EN-231206
The corresponding conformity declarations can be found on our
homepage.
Electromagnetic compatibility
Instruments in four-wire or Ex d ia version are designed for use in an
industrial environment. Nevertheless, electromagnetic interference
from electrical conductors and radiated emissions must be taken into
account, as is usual with class A instruments according to EN 61326-
1. If the instrument is used in a dierent environment, the electromag-
netic compatibility to other instruments must be ensured by suitable
measures.
2.6 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 fulls the requirements of the following NAMUR recom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE 53 – Compatibility of eld devices and display/adjustment
components
• NE 107 – Self-monitoring and diagnosis of eld devices
For further information see www.namur.de.
2.7 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 (NEC - NFPA 70) (USA).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code (CEC Part I) (Canada).
2.8 Safety instructions for Ex areas
For applications in hazardous areas (Ex), only devices with corre-
sponding Ex approval may be used. Observe the Ex-specic safety
instructions. These are an integral part of the device documentation
and are enclosed with every device with Ex approval.
2.9 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 certied according
to DIN EN ISO 14001.
Please help us full this obligation by observing the environmental
instructions in this manual:
• Chapter "Packaging, transport and storage"
7
2 For your safety
VEGAFLEX 81 • Probus PA
44214-EN-231206
• Chapter "Disposal"
8
3 Product description
VEGAFLEX 81 • Probus PA
44214-EN-231206
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Sensor VEGAFLEX 81
• Optional accessory
• Optionally integrated Bluetooth module
The further scope of delivery encompasses:
• Documentation
– Quick setup guide VEGAFLEX 81
– Instructions for optional instrument features
– Ex-specic "Safety instructions" (with Ex versions)
– If necessary, further certicates
Information:
Optional instrument features are also described in this operating
instructions manual. The respective scope of delivery results from the
order specication.
The type label contains the most important data for identication and
use of the instrument:
• Instrument type
• Information about approvals
• Conguration information
• Technical data
• Serial number of the instrument
• QR code for device identication
• Numerical code for Bluetooth access (optional)
• Manufacturer information
To nd order data, documents or software related to your device, you
have the following options:
• Move to "www.vega.com" and enter in the search eld the serial
number of your instrument.
• Scan the QR code on the type label.
• Open the VEGA Tools app and enter the serial number under
"Documentation".
3.2 Principle of operation
The VEGAFLEX 81 is a level sensor with coax probe for continuous
level or interface measurement, suitable for applications in liquids.
High frequency microwave pulses are guided along a steel cable or
a rod. Upon reaching the medium surface, the microwave pulses are
reected. The running time is evaluated by the instrument and output
as level.
Scope of delivery
Type label
Documents and software
Application area
Functional principle -
level measurement
9
3 Product description
VEGAFLEX 81 • Probus PA
44214-EN-231206
d
h
1
Fig. 1: Level measurement
1 Sensorreferenceplane(sealsurfaceoftheprocesstting)
d Distance to the level
h Height - Level
High frequency microwave impulses are guided along a steel cable or
rod. Upon reaching the medium surface, a part of the microwave im-
pulses is reected. The other part passes through the upper product
and is reected by the interface. The running times to the two product
layers are processed by the instrument.
TS
d1
h1
h2
d2
1
L2
L1
L3
Fig. 2: Interface measurement
1 Sensorreferenceplane(sealsurfaceoftheprocesstting)
d1 Distance to the interface
d2 Distance to the level
TS Thicknessoftheuppermedium(d1-d2)
h1 Height - Interface
h2 Height - Level
L1 Lower medium
L2 Upper medium
L3 Gas phase
Functional principle - in-
terface measurement
10
3 Product description
VEGAFLEX 81 • Probus PA
44214-EN-231206
Upper medium (L2)
• The upper medium must not be conductive
• The dielectric constant of the upper medium or the actual distance
to the interface must be known (input required). Min. dielectric con-
stant: 1.6. You can nd a list of dielectric constants on our home
page: www.vega.com.
• The composition of the upper medium must be stable, no varying
products or mixtures
• The upper medium must be homogeneous, no stratications
within the medium
• Min. thickness of the upper medium 50 mm (1.97 in)
• Clear separation from the lower medium, emulsion phase or detri-
tus layer max. 50 mm (1.97 in)
• If possible, no foam on the surface
Lower medium (L1)
• The dielectric constant must be 10 higher than the dielectric
constant of the upper medium, preferably electrically conductive.
Example: upper medium dielectric constant 2, lower medium at
least dielectric constant 12.
Gas phase (L3)
• Air or gas mixture
• Gas phase - dependent on the application, gas phase does not
always exist (d2 = 0)
The instrument is always preset to the application "Level measure-
ment".
For the interface measurement, you can select the requested output
signal with the setup.
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 consists of environment-friendly, recyclable card-
board. For special versions, PE foam or PE 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.
Prerequisites for inter-
face measurement
Output signal
Packaging
Transport
Transport inspection
Storage
Andere Handbücher für VEGAFLEX 81
18
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