Vega VEGAWELL 52 User manual

Operating Instructions
Submersible pressure transmitter with
ceramic measuring cell
VEGAWELL 52
4 … 20 mA/HART Pt 100
Document ID: 35402

2
Contents
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
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 Conformity........................................................................................................................ 6
2.7 NAMUR recommendations .............................................................................................. 6
2.8 Installation and operation in the USA and Canada ........................................................... 6
2.9 Environmental instructions ............................................................................................... 6
3 Product description ................................................................................................................. 7
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Adjustment....................................................................................................................... 9
3.4 Packaging, transport and storage..................................................................................... 9
3.5 Accessories.................................................................................................................... 10
4 Mounting................................................................................................................................. 11
4.1 General instructions ....................................................................................................... 11
4.2 Mounting steps with straining clamp............................................................................... 12
4.3 Mounting steps with screw connection for suspension cable ......................................... 13
4.4 Mounting steps with threaded connection or housing .................................................... 14
5 Connecting to power supply................................................................................................. 15
5.1 Preparing the connection ............................................................................................... 15
5.2 Connection procedure.................................................................................................... 17
5.3 Wiring plan ..................................................................................................................... 17
5.4 Switch-on phase............................................................................................................. 20
6 Set up with VEGADIS 82........................................................................................................ 21
6.1 Principle of operation and connection ............................................................................ 21
6.2 Adjustment volume......................................................................................................... 21
6.3 Setup steps .................................................................................................................... 22
7 Setup with PACTware............................................................................................................. 23
7.1 Connect the PC.............................................................................................................. 23
7.2 Parameter adjustment with PACTware............................................................................ 24
7.3 Saving the parameterisation data................................................................................... 25
8 Maintenanceandfaultrectication...................................................................................... 26
8.1 Maintenance .................................................................................................................. 26
8.2 Rectify faults................................................................................................................... 26
8.3 Shorten suspension cable.............................................................................................. 27
8.4 Shorten suspension cable - Version with housing .......................................................... 27
8.5 How to proceed if a repair is necessary.......................................................................... 29
9 Dismount................................................................................................................................. 30

3
Contents
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
9.1 Dismounting steps.......................................................................................................... 30
9.2 Disposal ......................................................................................................................... 30
10 Supplement ............................................................................................................................ 31
10.1 Technical data ................................................................................................................ 31
10.2 Dimensions .................................................................................................................... 38
10.3 Industrial property rights................................................................................................. 42
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: 2022-10-21

4
1 About this document
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
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.
Disposal
This symbol indicates special instructions for disposal.

5
2 For your safety
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
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
Model VEGAWELL 52 is a pressure transmitter for level and gauge
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 this product can give rise to applica-
tion-specichazards,e.g.vesseloverll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operatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
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.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.

6
2 For your safety
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 Conformity
The device complies with the legal requirements of the applicable
country-specicdirectivesortechnicalregulations.Weconrmcon-
formity with the corresponding labelling.
The corresponding conformity declarations can be found on our
homepage.
2.7 NAMUR recommendations
NAMUR is a user association for automation technology in the
processindustriesinGermany.Severalofitskeyactivitiesareden-
ing standards as well as setting user requirements on new devices,
systems and technologies. The published NAMUR recommendations
(NE)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
2.8 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.
2.9 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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"

7
3 Product description
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• VEGAWELL 52 pressure transmitter with suspension cable
• Documentation
– This operating instructions manual
– Testcerticate
– Supplementary instructions " Suitable for drinking water"
(optional)
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
Note:
Optional instrument features are also described in this operating
instructions manual.The respective scope of delivery results from the
orderspecication.
VEGAWELL 52 with suspension cable consists of the following
components:
• Transmitter
• Suspension cable
• Optionally, adjustable screw connection for suspension cable or
housing with thread
Thecomponentsareavailableindierentversions.
2
1
Fig. 1: Example of a VEGAWELL 52 with transmitter 22 mm
1 Transmitter
2 Suspension cable
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
Scope of delivery
Constituent parts
Type label

8
3 Product description
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
1
2
6
5
4
3
Fig. 2: Layout of the type label (example)
1 Instrument type, product code
2 Technical data
3 QR code for device documentation
4 Wire assignment suspension cable temperature (available depending on
the version)
5 ID numbers, instrument documentation
6 Wire assignment suspension cable, level
The type label contains the serial number of the instrument. With it
youcanndthefollowinginstrumentdataonourhomepage:
• Product code (HTML)
• Delivery date (HTML)
• Order-specicinstrumentfeatures(HTML)
• Operating instructions at the time of shipment (PDF)
• Testcerticate(PDF)-optional
Move to " www.vega.com"andenterinthesearcheldtheserial
number of your instrument.
Alternatively, you can access the data via your smartphone:
• Download the VEGA Tools app from the " Apple App Store" or the
" Google Play Store"
• Scan the DataMatrix code on the type label of the instrument or
• Enter the serial number manually in the app
3.2 Principle of operation
VEGAWELL 52 is suitable for continuous level measurement of
liquids.Typical applications are measurements in water/waste water
facilities, deep wells and in the shipbuilding industry.
The actual sensor element is the CERTEC®measuring cell with rug-
ged ceramic diaphragm.The hydrostatic pressure causes a capaci-
tance change in the measuring cell via the ceramic diaphragm.This
change is converted into an appropriate output signal.
The CERTEC®measuring cell is also equipped with a temperature
sensor Pt 100 in four-wire technology. The resistance value is ac-
cessed via the wires of the suspension cable.The power supply or the
processing is carried out via an external temperature transducer.
As a standard feature, the CERTEC®measuring cell is equipped with
a lateral, recessed seal.
Serial number - Instru-
ment search
Application area
Functional principle
Seal concept

9
3 Product description
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
Instruments with double seal have an additional front seal.
1
2
3
4
5
Fig. 3: Front-ush installation of the CERTEC®measuring cell with double seal
1 Housing, sensor
2 Measuring cell
3 Lateral seal for measuring cell
4 Additional, front seal for measuring cell
5 Diaphragm
4 … 20 mA/HART two-wire electronics for voltage supply and meas-
ured value transmission on the same cable.
Thedataforpowersupplyarespeciedinchapter"Technical data".
3.3 Adjustment
The instrument can be adjusted with the following adjustment media:
• With the external display and adjustment unit VEGADIS 82
• An adjustment software according to FDT/DTM standard, e.g.
PACTware and PC
• With a HART handheld
The type of adjustment and the adjustment options depend on the
selected adjustment component.The entered parameters are gener-
ally saved in the respective sensor, when adjusting with PACTware™
and PC optionally also in the PC.
3.4 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
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.
Voltage supply
Packaging
Transport
Transport inspection

10
3 Product description
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
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 moisture 20 … 85 %
With instrument weights of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
3.5 Accessories
The VEGABOX 02 is a breather housing for VEGAWELL 52. The
housingcontainsalterelementforventilationandoptionallyatem-
perature sensor for PT 100.
The VEGABOX 03 is a breather housing for VEGAWELL 52. The
housingcontainsalterelementforventilation.
The interface adapter VEGACONNECT enables the connection of
communication-capable instruments to the USB interface of a PC.
The VEGADIS 82 is suitable for measured value indication of
4 … 20 mA and 4 … 20 mA/HART sensors. It is looped into the signal
cable.
The measuring instrument holder is used for wall/tube mounting of
VEGABAR series 80 pressure transmitters and VEGAWELL 52 sub-
mersible pressure transmitters. Supplied reducers enable the adapta-
tiontodierentinstrumentdiameters.Thematerialusedis316L.
The robust, heavy-duty bracket of 1.4301/304 is designed for wall
mounting VEGA instruments.The required fastening elements are
included in the shipment.
Storage
Storage and transport
temperature
Lifting and carrying
VEGABOX 02
VEGABOX 03
VEGACONNECT
VEGADIS 82
Measuring instrument
holder
Mounting bracket

11
4 Mounting
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
4 Mounting
4.1 General instructions
Note:
For safety reasons, the instrument must only be operated within the
permissibleprocessconditions.Youcannddetailedinformationon
the process conditions in chapter " Technical data" of the operating
instructions or on the type label.
Hence make sure before mounting that all parts of the instrument ex-
posed to the process are suitable for the existing process conditions.
These are mainly:
• Active measuring component
• Processtting
• Process seal
Process conditions in particular are:
• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasionandmechanicalinuences
The instrument is suitable for standard and extended ambient condi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1. It can be used
indoors as well as outdoors.
Depending on the transmitter, the VEGAWELL 52 is supplied with a
protective cap or a transport and mounting protection.
1
2
Fig. 4: VEGAWELL 52, transport and mounting protection
1 Transmitter
2 Transport and mounting protection
Remove this protection after mounting and before setting up the
instrument.
In case of slightly contaminated measured media, the transport and
mounting protection can remain on the instrument as an impact pro-
tection during operation.
Lateral movements of the transmitter can cause measurement errors.
For this reason, mount the instrument in a calm area or in a suitable
protective tube.
Process conditions
Suitability for the ambient
conditions
Transport and mounting
protection
Installation position

12
4 Mounting
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
The suspension cable has a capillary for atmospheric pressure com-
pensation.Therefore lead the cable end into a dry environment or a
suitable terminal housing, for example VEGABOX 03 or VEGADIS 82.
Fig. 5: Mounting example: VEGAWELL 52 in an open basin with breather hous-
ing VEGABOX 03
4.2 Mounting steps with straining clamp
2
4
3
1
Fig. 6: Straining clamp
1 Suspension cable
2 Suspension opening
3 Clamping jaws
Mount VEGAWELL 52 with straining clamp as follows:
1. Hang the straining clamp on a suitable wall hook
2. Lower VEGAWELL 52 to the requested height
Pressure compensation
Mounting example

13
4 Mounting
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
3. Slide the clamping jaws upward and push the suspension cable
between them
4. Hold the suspension cable, push the clamping jaws downward
andxthemwithalightblow
Disassembly is carried out in reverse order.
4.3 Mounting steps with screw connection for
suspension cable
1
2
3
4
5
6
Fig. 7: Conguration, screw connection of suspension cable
1 Suspension cable
2 Sealing screw
3 Cone bushing
4 Seal cone
5 Screw connection for suspension cable
6 Seal
Mount VEGAWELL 52 with screw connection for suspension cable as
follows:
1. Weld the welded socket into the vessel top
2. Lower VEGAWELL 52 to the requested height by means on the
welded socket G1½ or 1½ NPT on the vessel side
3. Shift the suspension cable from below through the opened
threadedtting
4. Slide the sealing cone and the cone sleeve over the suspension
cable, fasten manually with the seal screw
5. Screwthescrewedconnectionintothenozzle,tightenwithSW30
and then tighten seal screw with SW 19
How to correct the height:
1. Loosen seal screw with SW 19
2. Slide seal cone and cone sleeve to the requested position on the
cable
3. Fasten the seal screw
Disassembly is carried out in reverse order.

14
4 Mounting
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
4.4 Mounting steps with threaded connection or
housing
2
3
1
Fig. 8: Plastic housing
1 Housing
2 Seal
3 Thread
Mount VEGAWELL 52 as follows:
1. Weld the welded socket G1½ or 1½ NPT to the vessel top
2. Shift transmitter through the mounting boss
3. TurnthethreadwithsealintothenozzleandtightenwithSW461)
Disassembly is carried out in reverse order.
Mount VEGAWELL 52 as follows:
1. Fasten the mounting bracket at the suitable height on the basin
wall
2. Lead the transmitter through the opening of the mounting bracket
and the counter nut
3. Fasten counter nut with SW 46 on the thread
Mount into the vessel
Mounting into the basin
1) Seal with resistant material with thread 1½ NPT.

15
5 Connecting to power supply
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
5 Connecting to power supply
5.1 Preparing the connection
Generally connect the instrument only in the complete absence of line
voltage.
The instrument is equipped with an integrated overvoltage protection.
For additional protection of the signal circuit, we recommend further
external overvoltage arresters.
• Type B63-48 (use with VEGAWELL 52 with plastic housing) or
• Type ÜSB 62-36G.X (use in a separate housing)
Inhazardousareasyoumusttakenoteoftherespectiveregulations,
conformityandtypeapprovalcerticatesofthesensorsandpower
supply units.
Power supply and current signal are carried on the same two-wire
cable.Thevoltagesupplyrangecandierdependingontheinstru-
ment version.
Thedataforpowersupplyarespeciedinchapter"Technical data".
Note:
Power the instrument via an energy-limited circuit (power max. 100 W)
acc. to IEC 61010-1, e.g.
• Class 2 power supply unit (acc. to UL1310)
• SELV power supply unit (safety extra-low voltage) with suitable
internal or external limitation of the output current
Keepinmindthefollowingadditionalfactorsthatinuencetheoperat-
ing voltage:
• Lower output voltage of the power supply unit under nominal load
(e.g. with a sensor current of 20.5 mA or 22 mA in case of fault
signal)
• Inuenceofadditionalinstrumentsinthecircuit(seeloadvaluesin
chapter " Technical data")
The instrument is connected with standard two-wire installation cable
without shielding. If electromagnetic interference is expected which is
above the test values of EN 61326 for industrial areas, shielded cable
should be used.
Make sure that the cable used has the required temperature resist-
anceandresafetyformax.occurringambienttemperature
Use cable with round cross-section. A cable outer diameter of
5…9mm(0.2…0.35in)ensuresthesealeectofthecablegland.
Ifyouareusingcablewithadierentdiameterorcross-section,
exchange the seal or use a suitable cable gland.
We generally recommend the use of shielded cable for HART
multidrop mode.
Safety instructions
Take note of safety
instructions for Ex
applications
Select voltage supply
Select installation cable

16
5 Connecting to power supply
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
1
2
3
Fig. 9: Connect VEGAWELL 52 to voltage supply
1 Direct connection
2 Connection via VEGABOX 03
3 Connection via housing
If shielded cable is required, we recommend connecting the cable
screening on both ends to ground potential. In the connection hous-
ing of the sensor or in VEGABOX, the shielding must be connected
directly to the internal ground terminal.The ground terminal on the
outside of the housing must be connected to the ground potential (low
impedance).
In Ex systems, the grounding is carried out according to the installa-
tion regulations.
In electroplating plants as well as plants for cathodic corrosion protec-
tionitmustbetakenintoaccountthatsignicantpotentialdierences
exist.This can lead to unacceptably high currents in the cable screen
if it is grounded at both ends.
Information:
Themetallicpartsoftheinstrument(processtting,sensor,concen-
tric tube, etc.) are connected with the internal and external ground
terminal on the housing.This connection exists either directly via
the conductive metallic parts or, in case of instruments with external
electronics, via the screen of the special connection cable.
Youcanndspecicationsonthepotentialconnectionsinsidethe
instrument in chapter " Technical data".
Cable screening and
grounding

17
5 Connecting to power supply
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
5.2 Connection procedure
Proceed as follows:
1. Wire the suspension cable up to the connection compartment 1)
2. Connect the wire ends to the screw terminals according to the
wiring plan
Connect the VEGAWELL 52 according to the description in the oper-
ating instructions of the respective VEGABOX.
Proceed as follows:
1. Unscrew the housing lid
2. Remove the sealing plug and insert the installation cable through
the cable entry into the plastic housing
3. Loosen the screws with a screwdriver
4. Insert the wire ends into the open terminals according to the wir-
ing plan
5. Tighten the screws with a screwdriver
6. Check the hold of the wires in the terminals by lightly pulling on
them
7. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
8. Retighten the housing cover
Theelectricalconnectionisnished.
5.3 Wiring plan
1
8
2
3
4
5
6
7
Fig. 10: Wire assignment, suspension cable
1 Brown (+): to voltage supply or to the processing system
2 Blue (-): to voltage supply or to the processing system
3 White: for processing of the integrated Pt 100 (power supply)
4 Yellow: for processing of the integrated Pt 100 (measurement)
5 Red: for processing of the integrated Pt 100 (measurement)
6 Black: for processing of the integrated Pt 100 (power supply)
7 Shielding
8 Breather capillaries with lter element
Direct connection
Connection via VEGABOX
Connection via housing
Direct connection
2) The suspension cable is already preconfectioned. After shortening the sus-
pension cable, fasten the type plate with support again to the cable.

18
5 Connecting to power supply
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
2
3
4
–
+
1
Fig. 11: Wiring plan VEGAWELL 52 for 4 … 20 mA/HART Pt 100
1 To voltage supply or the processing system (signal pressure transmitter)
2 To power supply or the processing system (connection cables resistance
thermometer Pt 100)
3 Shielding
1)
Wire number Wire colour/Polarity Function
1 brown (+) Power supply/signal
pressure transmitter
2 blue (-) Power supply/signal
pressure transmitter
3 White Power supply Pt 100
4 Yellow Measurement Pt 100
5Red Measurement Pt 100
6 Black Power supply Pt 100
Shielding Grounding
1234
-
-
+
mA
+
12 12
1
2
3
–
–
+
+
Fig. 12: Wiring plan VEGABOX 02 with integrated transmitter for Pt 100
1 To voltage supply or the processing system (signal pressure transmitter)
2 For voltage supply or to processing system (resistance thermometer Pt 100)
3 Shielding
1)
Connection via VEGABOX
03
Connection via VEGABOX
02 with integrated trans-
mitter for Pt 100
3) Connect shielding to ground terminal. Connect ground terminal on the out-
side of the housing to ground as prescribed.The two terminals are galvani-
cally connected.
4) Connect shielding to ground terminal. Connect ground terminal on the out-
side of the housing to ground as prescribed.The two terminals are galvani-
cally connected.

19
5 Connecting to power supply
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
Wire number Wire colour/Polarity Terminal VEGABOX 02
1 brown (+) 1
2 blue (-) 2
3 Shielding Grounding
Wire number Wire colour/Polarity Terminal temperature
transmitter
3 White 1
4 Yellow 2
5Red 3
6 Black 4
1
2
4
5
3
6
1
3
2
Fig. 13: Wiring plan VEGAWELL 52 for 4 … 20 mA/HART Pt 100
1 To voltage supply or the processing system (signal pressure transmitter)
2 To the temperature transmitter (connection cables resistance thermometer
Pt 100)
3 Shielding
1)
Terminal, housing Wire colour/Polarity Function
1 brown (+) Power supply/signal
pressure transmitter
2 blue (-) Power supply/signal
pressure transmitter
3 White Power supply Pt 100
4 Yellow Measurement Pt 100
5Red Measurement Pt 100
6 Black Power supply Pt 100
Connection via housing
5) Connect shielding to ground terminal. Connect ground terminal on the out-
side of the housing to ground as prescribed.The two terminals are galvani-
cally connected.

20
5 Connecting to power supply
VEGAWELL 52 • 4 … 20 mA/HART Pt 100
35402-EN-221021
Terminal, housing Wire colour/Polarity Function
Shielding Grounding
Sensor
12
+
( ) (-)
power supply
34
+
( ) (-)
R
off on
HART
14
2
3
Fig. 14: Wiring plan VEGAWELL 52 4 … 20 mA/HART
1 To the sensor
2 Switch for communication resistor (on = activated, o = deactivated)
3 Terminal for connection of the cable screening
4 For power supply
Wire number Wire colour/Polarity Terminal VEGADIS 82
1 brown (+) 1
2 blue (-) 2
Shielding Ground terminal
5.4 Switch-on phase
After connecting VEGAWELL 52 to power supply or after a voltage
recurrence, the instrument carries out a self-check:
• Internal check of the electronics
• 4 … 20 mA output jumps to the fault signal
Aftertherun-upperiod(specicationsee"Technical data"), the
instrument delivers an output signal of 4 … 20 mA.The value corre-
sponds to the actual level as well as the settings already carried out,
e.g. factory setting.
Connection via VEGADIS
82