Ope
p
rating Instructions
VEGAWELL 51
4 … 20 mA/HART
Articl
e no. 32468
Process pressure/
Hydrostatic
Content
tent
Con
1 About this document
1.1 Function .
1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Symbolism used . . . . . . . . . . . . . . . . . . . . . . .
2 For your safety
2.1 Authorised personnel . . . . . . . . . . . . . . . . . . . .
2.2 Appropriate use. . . . . . . . . . . . . . . . . . . . . . . .
2.3 Warning about misuse . . . . . . . . . . . . . . . . . . .
2.4 General safety instructions . . . . . . . . . . . . . . . .
2.5 Safety approval markings and safety tips . . . . .
2.6 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 Fulfilling of NAMUR recommendations . . . . . . .
2.8 Safety instructions for Ex areas . . . . . . . . . . . .
2.9 Environmental instructions . . . . . . . . . . . . . . . .
3 Product description
3.1 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Principle of operation. . . . . . . . . . . . . . . . . . . .
3.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Packaging, transport and storage . . . . . . . . . . .
4 Mounting
4.1 General instructions. . . . . . . . . . . . . . . . . . . . .
4.2 Mounting steps with straining clamp . . . . . . . . .
4.3 Mounting steps with screwed connection . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
4
4
5
5
5
5
6
6
6
7
7
8
10
10
10
12
14
15
5 Connecting to power supply
5.1 Preparing the connection . . . . . . . . . . . . . . . . .
5.2 Connection procedure . . . . . . . . . . . . . . . . . . .
5.3 Wiring plan . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Switch on phase . . . . . . . . . . . . . . . . . . . . . . .
6 Setup with PACTware™
6.1 Connecting the PC . . . . . . . . . . . . . . . . . . . . .
6.2 Parameter adjustment with PACTware™. . . . . .
6.3 Saving the parameter adjustment data . . . . . . .
6.4 Parameter adjustment with AMS™ and PDM . .
7 Maintenance and fault rectification
7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Remove interferences . . . . . . . . . . . . . . . . . . .
7.3 Shorten suspension cable . . . . . . . . . . . . . . . .
2 VE
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19
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32468-EN-080604
24
24
25
GAWELL 51 • 4 … 20 mA/HART
Content
7.4 Instrum
ent repair . . . . . . . . . . . . . . . . . . . . . . .
8 Dismounting
8.1 Dismounting steps . . . . . . . . . . . . . . . . . . . . . .
8.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Supplement
9.1 Technical data. . . . . . . . . . . . . . . . . . . . . . . . .
9.2 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3 Industrial property rights. . . . . . . . . . . . . . . . . .
9.4 Trademark . . . . . . . . . . . . . . . . . . . . . . . . . . .
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32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
Supplementary documentation
Information:
Supplemen
tary documents appropriate to the ordered version
come with the delivery. You can find them listed in chapter
"Product description".
Instructions manuals for accessories and replacement
parts
Tip:
ensure reliable setup and operation of your VEGAWELL 51,
To
we offer accessories and replacement parts. The associated
documents are:
l 32798 - VEGABOX 02
T 3
t this document
Abou
1 Abo
ut this document
1.1 Function
This
operating instructions manual provides all the information
you need for mounting, connection and setup as well as
important instructions for maintenance and fault rectification.
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 should be made
available to these personnel and put into practice by them.
1.3 Symbolism used
Information, tip, no
This symbol indicates helpful additional information.
Caution: If
tions 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.
this warning is ignored, faults or malfunc-
te
applications
Ex
This symbol indicates special instructions for Ex applications.
l List
The dot set in front indicates a list with no implied sequence.
à Action
This arrow
1 Sequence
Numbers set in front indicate successive steps in a procedure.
4 VE
indicates a single action.
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
your safety
For
2 For
your safety
2.1 Authorised personnel
All
operations described in this operating instructions manual
must be carried out only by trained specialist personnel
authorised by the plant operator.
During work on and with the device the required personal
protection equipment must always be worn.
2.2 Appropriate use
VEGAWELL 51 is a suspension pressure transmitter for level
and gauge measurement.
You can find detailed information on the application range in
chapter "Product description".
Operational reliability is ensured only if the instrument is
properly used according to the specifications 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. Arbitrary conversions or modifications are
explicitly forbidden.
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
2.3 Warning about misuse
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards, e.g. vessel overfill or damage to
system components through incorrect mounting or adjustment.
2.4 General safety instructions
This is a high-tech instrument requiring the strict observance of
standard regulations and guidelines. The user must take note
of the safety instructions in this operating instructions manual,
the country-specific installation standards as well as all
prevailing safety regulations and accident prevention rules.
The instrument must only be operated in a technically flawless
and reliable condition. The operator is responsible for troublefree operation of the instrument.
T 5
your safety
For
the entire duration of use, the user is obliged to
During
determine the compliance of the required occupational safety
measures with the current valid rules and regulations and also
take note of new regulations.
2.5 Safety approval markings and safety tips
The safety approval markings and safety tips on the device
must be observed.
2.6 CE conformity
The protection goals of the EMC Directive 2004/108/EC (EMC)
and the Low Voltage Directive 2006/95/EC (LVD) are fulfilled.
Conformity has been judged according to the following
standards:
EMC: EN 61326-1: 2006
(electrical instruments for control technology and laboratory
use - EMC requirements)
l Emission: Class B
l Susceptibil
ity: Industrial
LVD: EN 61010-1: 2001
(safety regulations for electrical measurement, control and
laboratory instruments - part 1: Gerneral requirements)
areas
2.7 Fulfilling of NAMUR recommendations
In respect to interference resistance and emitted interference,
the NAMUR recommendation NE 21 is met.
In respect to compatibility, the NAMUR recommendation NE 53
is met. This applies also to the corresponding indicating and
adjustment components. VEGA instruments are generally
upward and downward compatible.
l Sensor
l DTM VEGAWELL 51 for adjustment software PACTware™
software to DTM
The parameter adjustment of the basic sensor functions is
independent of the software version. The range of available
functions depends on the respective software version of the
individual components.
The software version of VEGAWELL 51 HART can be read out
via PACTware™.
6 VE
VEGAWELL 51 HART
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
your safety
For
can view all software histories on our website
You
www.vega.
com. Make use of this advantage and get registered for update
information via e-mail.
2.8 Safety instructions for Ex areas
Please note the Ex-specific safety information for installation
and operation in Ex areas. These safety instructions are part of
the operating instructions manual and come with the Exapproved instruments.
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 protection. The environment management system is certified according to DIN EN ISO 14001.
Please help us fulfil this obligation by observing the environmental instructions in this manual:
and
l Chapter "Packaging, transport
l Chapter "Disposal"
storage"
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 7
Produ
ct description
Scope of delivery
Components
3 Prod
3.1 Configurat
uct description
ion
The scope of delivery encompasses:
l VEGAWELL 51 pressure
l Straining clamp or threaded fitting (optionally available)
l Documentation
transmitter with suspension cable
- this operating instructions manual
- test certificate
- Ex-specific "Safety instructions" (with Ex-versions)
- if necessary, further certificates
VEGAWELL 51 consists of the following components:
l Transmitter
l Suspensi
The
components are available in different versions.
on cable
8 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
3
2
1
Produc
t description
Type label
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
Fig. 1: Example
1 Transmitter
2 Suspension cable
3 Threaded fitting
of a VEGAWELL 51 with screwed connection
The type label contains the most important data for identi-
fication and use of the instrument:
l Article
l Serial number
l Technical data
l Article numbers, document
number
ation
With the serial number, you can access the delivery data of the
instrument via "
www.vega.com", "VEGA
Tools" and "serial
number search". In addition to the type label outside, you can
also find the serial number on the inside of the instrument.
T 9
Produ
ct description
Application range
Functional principle
Voltage supply
3.2 Princi
ple of operation
VEGAWELL 51 is used for level measurement in vessels and
for gauge measurement in deep wells, e.g. in water/sewage
water applications.
actual sensor element is the CERTEC
The
1)
®
measuring cell
with rugged ceramic diaphragm. The hydrostatic pressure
causes a capacitance 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 can be gripped via the wires of the
suspension cable. The power supply or the processing is
carried out via a temperature sensor, e.g. in the VEGABOX 02.
Two-wire electronics 4 … 20 mA/HART for power supply and
measured value transmission over the same cable.
The supply voltage range can differ depending on the
instrument version.
Data for power supply are specified in chapter "Technical
data".
3.3 Operation
VEGAWELL 51 - 4 … 20 mA/HART can be adjusted with
different adjustment media:
l an adjustment software according to FDT/DTM stan
e.g. PACTware™ and PC
l With a HART handheld
The
kind of adjustment and the adjustment options depend on
the selected adjustment component. The entered parameters
are generally saved in the respecitive sensor, when adjusting
with PACTware™ and PC optionally also in the PC.
dard,
3.4 Packaging, transport and storage
Packaging
10 VE
Your instrument was protected by packaging during transport.
Its capacity to handle normal loads during transport is assured
by a test according to DIN EN 24180.
1)
For use in closed vessels under vacuum, VEGAWELL 51 is available with
absolute pressure measuring ranges.
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
t description
Produc
packaging of standard instruments consists of environ-
The
ment-friendly, recyclable cardboard. For special versions, PE
foam or PE foil is also used. Dispose of the packaging material
via specialised recycling companies.
Transport
Transport inspection
Storage
Storage and transport
temperature
Transport must be carried out under 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 concealed 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:
l Not
l Dry and dust free
l Not exposed to corrosive media
l P
l Avoiding mechanical shock and vibration
l Storage and transport temperature see "Supplement -
l Relative humidity 20 … 85 %
in the open
rotected against solar radiation
Technical
data - Ambient conditions"
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 11
Moun
ting
Materials, wetted parts
Mounting position
Pressure compensation
4 Mou
nting
4.1 General instructions
Make
sure that the wetted parts of the instrument, especially
the seal and process fitting, are suitable for the existing
process conditions such as pressure, temperature etc. as well
as the chemical properties of the medium.
You can find the specifications in chapter "Technical data".
Note the following points when selecting the installation
location.
l Side
à Therefore, mount VEGAWELL 51 in a calm area or in a
Information:
We
VEGA line of accessory (article no. BARMONT.D) to fasten
VEGAWELL 51.
l The connection cable has a capillary for atmospheric
à Therefore lead the cable end into a dry space or directly
movements of the transmitter can cause measure-
ment
errors
suitable protective tube
recommend the measuring instrument holder from the
pressure
compensation
into a suitable terminal housing.
Information:
this purpose, VEGA recommends VEGABOX 02. It
For
contains terminals and a filter element for pressure compensation. A suitable protective cover is available for mounting
outdoors.
Mounting example
12 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
Mounting
Fig. 2: Mounting
VEGABOX 02
example: VEGAWELL 51 in a pump shaft with breather housing
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 13
2
3
1
Moun
ting
4.2 Mount
Fig. 3: Straining
1 Suspension cable
2 Suspension opening
3 Clamping jaws
ing steps with straining clamp
clamp
Mount VEGAWELL 51 with straining clamp as follows:
1 Hang the straining clamp on a suitable wall hook
2 Lower VEGAWELL 51 to the requested height
3 Slide the clamping jaws upward and push the suspension
cable between them
4 Hold the suspension cable, push the clamping jaws
downward and fix them with a light blow
Removal is carried out in reverse order.
14 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
1
2
3
4
5
6
Mounting
4.3 Mount
Fig. 4: Threaded fitting
1 Suspension
2 Seal screw
3 Cone bushing
4 Seal cone
5 Threaded fitting
6 Seal
ing steps with screwed connection
cable
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
Mount VEGAWELL 51 with screwed connection as follows:
1 Weld the welded socket into the vessel top
2 Lower VEGAWELL 51 to the requested height by means
on the welded socket G1½ A or 1½ NPT on the vessel side
3 Insert the suspension cable from below into the open
screwed connection
4 Shift the seal cone and the cone sleeve to the suspension
cable, fasten manually with the seal screw
5 Screw the screwed connection into the socket, fasten with
SW 30 and then fasten seal screw with SW 19
How to correct the height:
1 Loosen seal screw with SW 19
2 Shift seal cone and cone sleeve to the requested position
on the cable
3 Fasten the seal screw
Removal is carried out in reverse order.
T 15
ting to power supply
Connec
Note safety instructions
Take note of
safety instructions for Ex applications
Select power supply
Selecting connection
cable
5 Con
5.1 Preparin
necting to power supply
g the connection
Always keep in mind the following safety instructions:
l Connect only in the complete absence of line voltage
l VEGAWELL 51 contains an
integrated overvoltage protection. If overvoltage is expected, overvoltage protection
instruments should be installed to protect connected
instruments
Tip:
We
recommend the following VEGA overvoltage arresters:
l ÜSB 62-36G.X (use in a separate housing)
In
hazardous areas you should take note of the appropriate
regulations, conformity and type approval certificates of the
sensors and power supply units.
Power supply and current signal are carried on the same twowire cable. The voltage supply range can differ depending on
the instrument version.
Data for power supply are specified in chapter "Technical
data".
Provide a reliable separation between the supply circuit and
the mains circuits according to DIN VDE 0106 part 101.
VEGA power supply units VEGATRENN 149AEx, VEGASTAB
690, VEGADIS 371 as well as all VEGAMETs meet this
requirement. When using one of these instruments, protection
class III is ensured for VEGAWELL 51.
Bear in mind the following factors regarding supply voltage:
l Outpu
t voltage of the power supply unit can be lower under
nominal
load (with a sensor current of 20.5 mA or 22 mA in
case of fault message)
l Influence
of additional instruments in the circuit (see
load
values in chapter "Technical data")
The instrument is connected with standard two-wire cable
without screen. If electromagnetic interference is expected
which is above the test values of EN 61326 for industrial areas,
screened cable should be used.
32468-EN-080604
16 VE
GAWELL 51 • 4 … 20 mA/HART
1
2
ecting to power supply
Conn
cable with round cross-section. A cable outer diameter of
Use
5 … 9 mm (0.2 … 0.35 in) ensures the seal effect of the cable
gland. If you are using cable with other diameter or crosssection, you have to exchange the seal or use a suitable cable
gland.
Cable screening and
grounding
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
Fig. 5: Connect VEGAWELL 51 to
1 Direct connection
2 Connection via VEGABOX 02
power supply
If screened cable is necessary, connect the cable screen on
both ends to ground potential. In the plastic housing, in
VEGABOX 02 or in VEGADIS 12, the screen must be
connected directly to the internal ground terminal. The ground
terminal outside on the housing must be connected to the
potential equalisation.
If potential equalisation currents are expected, the connection
on the processing side must be made via a ceramic capacitor
(e. g. 1 nF, 1500 V). The low frequency potential equalisation
currents are thus suppressed, but the protective effect against
high frequency interference signals remains.
T 17
ting to power supply
Connec
Select connection cable for Ex
applications
Direct connection
Connection via
VEGABOX 02
note of the corresponding installation regulations for Ex
Take
applications.
5.2 Connection procedure
Proceed as follows:
1 Wire the connection cable up to the connection compart-
ment. The bending radius must be at least 25 mm.
the
2 Connect
wire ends to the screw terminals according to
the wiring plan
Proceed as follows:
1 Snap VEGABOX 02 onto the carrier rail or screw it to the
mounting plate
2 Loosen the cover screws and remove the cover
3 Shift cable through the cable gland into VEGABOX 01 B
4 Loosen the screws with a screwdriver
5 Insert the wire ends into the open terminals according to
the wiring plan
6 Tighten the screws with a screwdriver
7 Check the hold of the wires in the terminals by lightly
pulling on them
8 Tighten the compression nut of the cable entry. The seal
ring must completely encircle the cable
9 Connect the supply cable according to steps 3 to 8
10 Screw the housing cover on
The electrical connection is finished.
2)
2)
The connection cable is already preconfectioned. After shortening the cable, fasten the type plate with support again to the cable.
18 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
1
8
2
3
4
5
6
7
1
2
1
3
–
+
1 2 3 4 5 6
1 2 3 4 5 6
ecting to power supply
Conn
Direct connection
Connection via
VEGABOX 02
5.3 Wir
Fig. 6: Wire
1 blue (-): to power supply or to the processing system
2 brown (+): to power 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 filter element
Fig. 7: Terminal
1 To power supply or the processing system (signal pressure transmitter)
2 To power supply or the processing system (connection cables resistance
3 Shielding
ing plan
assignment, connection cable
assignment VEGABOX 02
thermometer PT 100)
3)
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
Wire number Wire colour/Polarity Terminal VEGABOX 02
1 brown (+) 1
2 blue (-) 2
3 White 3
4 Yellow 4
5 Red 5
6 Black 6
Shielding Ground
3)
Connect screen to ground terminal. Connect ground terminal on the outside
of the housing as prescribed. The two terminals are galvanically connected.
T 19
1
2
3
4
-
-
+
mA
+
1 2
1 2
1
2
3
–
–
+
+
ting to power supply
Connec
Connection via
VEGABOX 02 with inte-
grated transmitter for
PT 100
Fig. 8: Terminal
1 To power supply or the processing system (signal pressure transmitter)
2 For voltage supply or to processing system (resistance thermometer
PT 100)
3 Shielding
Wire number Wire colour/Polarity Terminal VEGABOX 02
1 brown (+) 1
2 blue (-) 2
3 Shielding Ground
Wire number Wire colour/Polarity Terminal temperature
3 White 1
4 Yellow 2
5 Red 3
6 Black 4
assignment VEGABOX 02
4)
5.4 Switch on phase
After connecting VEGAWELL 51 to power supply or after a
voltage recurrence, the instrument carries out a self-check:
l Internal
l 4 … 20 mA output jumps
Then VEGAWELL 51 delivers a current of 4 … 20 mA to the
cable. The value corresponds to the actual level as well as to
settings already carried out, e.g. the factory setting.
20 VE
4)
Connect screen to ground terminal. Connect ground terminal on the outside
of the housing as prescribed. The two terminals are galvanically connected.
check of the electronics
to the set failure signal
transmitter
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
1
5
2
3
4
with PACTware™
Setup
cting the PC to
Conne
the signal cable
6 Setup
with PACTware™
6.1 Connect
ing the PC
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
Fig. 9: Connection
1 PC with PACTware™
2 RS232 interface (with VEGACONNECT 3), USB interface (with VEGA-
CONNECT 4)
3 VEGACONNECT 3 or 4
4 Communication resistor 250 Ω
5 Power supply unit
of the PC to VEGABOX 02 or communication resistor
Necessary components:
l VEGAWELL 51
l PC with PACTware™ and
l VEGACONNECT with HART adapter cable
l HART resistor approx. 250 Ω
ower supply unit
l P
suitable VEG
A DTM
T 21
with PACTware™
Setup
Note:
power supply units with integrated HART resistance
With
(internal resistance approx. 250 Ω), an additional external
resistance is not necessary (e. g. VEGATRENN 149A,
VEGADIS 371, VEGAMET 381/624/625, VEGASCAN 693). In
such cases, VEGACONNECT can be connected parallel to the
4 … 20 mA cable.
6.2 Parameter adjustment with PACTware™
Further setup steps are described in the operating instructions
manual "DTM Collection/PACTware™" attached to each CD
and which can also be downloaded from our homepage. A
detailed description is available in the online help of
PACTware™ and the VEGA DTMs.
Note:
Keep
in mind that for setup of VEGAWELL 51, DTM-Collection
in the actual version must be used.
All currently available VEGA DTMs are provided in the DTM
Collection on CD and can be obtained from the responsible
VEGA agency for a token fee. This CD includes also the up-to-
date PACTware™ version. The basic version of this DTM
Collection incl. PACTware™ is also available as a free-of-
charge download from the Internet.
Go via
www.vega.com
and "Downloads" to the item "Soft-
ware".
6.3 Saving the parameter adjustment data
It is recommended to document or save the parameter
adjustment data. They are hence available for multiple use or
service purposes.
The VEGA DTM Collection and PACTware™ in the licensed,
professional version provide suitable tools for systematic
project documentation and storage.
6.4 Parameter adjustment with AMS™ and PDM
For VEGA sensors, instrument descriptions for the adjustment
programs AMS™ and PDM are available as DD or EDD. The
instrument descriptions are already implemented in the current
versions of AMS™ and PDM. For older versions of AMS™ and
PDM, a free-of-charge download is available via Internet.
22 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
with PACTware™
Setup
via
Go
ware".
www.vega.com
and "Downloads" to the item "Soft-
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 23
nance and fault rectification
Mainte
Reaction when malfunctions occur
Causes of malfunction
Fault rectification
7 Main
tenance and fault rectification
7.1 Maintenance
When
used in the correct way, no special maintenance is
required in normal operation.
7.2 Remove interferences
The operator of the system is responsible for taken suitable
measures to remove interferences.
A maximum of reliability is ensured. Nevertheless, faults can
occur during operation. These may be caused by the following,
e.g.:
l Sensor
l Process
l Voltage supply
l Signal processing
The first
as well as to evaluate the error messages via the indicating
and adjustment module. The procedure is described below.
Further comprehensive diagnostics can be carried out on a PC
with the software PACTware™ and the suitable DTM. In many
cases, the causes can be determined in this way and faults
can be rectified.
measures to be taken are to check the output signals
24 hour service hotline
However, should these measures not be successful, call the
VEGA service hotline in urgent cases under the phone no. +49
1805 858550.
The hotline is available to you 7 days a week round-the-clock.
Since we offer this service world-wide, the support is only
available in the English language. The service is free of
charge, only the standard telephone costs will be charged.
Checking the 4 … 20 mA
signal
Connect a handheld multimeter in the suitable measuring
range according to the wiring plan.
? 4 … 20 mA signal not stable
l Level fluctuations
à Adjust
l no atmospheric pressure compensation
integration
à Check the
24 VE
time via PACTware™
capillaries and cut them clean
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
Maintenance and fault rectificati
on
Reaction after fault rectification
à Check
the pressure compensation in the housing and
clean the filter element, if necessary
? 4 … 20 mA signal missing
l Wrong connection to power supply
à Check
connection according to chapter "Connection
steps" and if necessary, correct according to chapter
"Wiring plan"
voltage supply
l No
à Check
l supply voltage too low or load resistance too high
à Check, adapt if
cables for breaks; repair if necessary
necessary
? Current signal 3.6 mA; 22 mA
l electronics module or measuring cell defective
à Exchange
In Ex
applications, the regulations for the wiring of intrinsically
instrument
or return instrument for repair
safe circuits must be observed.
Depending on the failure reason and measures taken, the
steps described in chapter "Set up" must be carried out again,
if necessary.
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
7.3 Shorten suspension cable
Shorten the suspension cable individually. Proceed as follows:
1 Remove the filter adapter from the transparent capillary line
2 Cut the suspension cable with an edge cutter to the
requested length
Caution:
not squeeze the capillary cable, this will influence the
Do
pressure compensation. If necessary, rework with a sharp
knife.
3 Remove approx. 10 cm of the cable mantle, strip off
approx. 1 cm of the wire ends
Insert the filter adapter
The work steps are finished.
T 25
nance and fault rectification
Mainte
7.4 Instru
ment repair
If a repair is necessary, please proceed as follows:
You can download a return form (23 KB) from our Internet
homepage
www.vega.com under: "Downloads - Forms and
certificates - Repair form".
By doing this you help us carry out the repair quickly and
without having to call back for needed information.
and fill
l Print
l Clean the instrument and pack it damage-proof
l Attach the completed form and probably the safety data
sheet
l Please ask the agency serving you for the address of your
out one form per instrument
outside on the packaging
return shipment. You can find the respective agency on our
website
www.vega.com
under: "Company - VEGA world-
wide"
26 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
Dismoun
ting
8 Dism
ounting
8.1 Dismounting steps
Warning:
Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel, high temperatures,
corrosive or toxic products etc.
Take note of chapters "Mounting" and "Connecting to power
supply" and carry out the listed steps in reverse order.
8.2 Disposal
The instrument consists of materials which can be recycled by
specialised recycling companies. We use recyclable materials
and have designed the electronics to be easily separable.
WEEE directive 2002/96/EG
This instrument is not subject to the WEEE directive 2002/96/
EG and the respective national laws. Pass the instrument
directly on to a specialised recycling company and do not use
the municipal collecting points. These may be used only for
privately used products according to the WEEE directive.
Correct disposal avoids negative effects to persons and
environment and ensures recycling of useful raw materials.
Materials: see chapter "Technical data"
If you cannot dispose of the instrument properly, please
contact us about disposal methods or return.
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 27
Suppl
ement
9 Sup
9.1 Technical
plement
data
General data
Measured value Level
Measuring principle Ceramic-capacitive, dry measuring cell
Communication interface HART signal on 4 … 20 mA cable
Materials and weights
Materials, wetted parts
- Transmitter 316L, Titanium
- Protective cap PA, PE
- Diaphragm sapphire ceramic
®
(99.9 % oxide ceramic)
- Measuring cell seal FKM (FDA and KTW approved, Viton), FFKM
(Kalrez 6375), EPDM
- Suspension cable PE (FDA and KTW-approved), FEP, PUR
- Straining clamp 1.4301
- Threaded fitting 316L
- Process fitting/cable outlet 316L
Materials, non-wetted parts
- type label support on cable PE hard
- transport protection net PE
Weight approx.
- Basic weight 0.8 kg (1.764 lbs)
- Suspension cable 0.1 kg/m (0.07 lbs/ft)
- Straining clamp 0.2 kg (0.441 lbs)
- Threaded fitting 0.4 kg (0.882 lbs)
Input variable
Factory setting or adjustment via HART
percentage value -10 … +110 % of the nominal measuring
range
pressure value -20 … +120 % of the nominal measuring
range
Recommended max. turn down 10 : 1 (no limitation)
Nominal measuring ranges and overload capability in bar/kPa
28 VE
GAWELL 51 • 4 … 20 mA/HART
32468-EN-080604
plement
Sup
range Overload, max. pressure Overload, min. pressure
Nominal
Gauge pressure
0 … 0.1 bar/0 … 10 kPa 15 bar/1500 kPa -0.2 bar/-20 kPa
0 … 0.2 bar/0 … 20 kPa 20 bar/2000 kPa -0.4 bar/-40 kPa
0 … 0.4 bar/0 … 40 kPa 30 bar/3000 kPa -0.8 bar/-80 kPa
0 … 1 bar/0 … 100 kPa 35 bar/3500 kPa -1 bar/-100 kPa
0 … 2.5 bar/0 … 250 kPa 50 bar/5000 kPa -1 bar/-100 kPa
0 … 5 bar/0 … 500 kPa 65 bar/6500 kPa -1 bar/-100 kPa
0 … 10 bar/0 … 1000 kPa 90 bar/9000 kPa -1 bar/-100 kPa
0 … 25 bar/0 … 2500 kPa 130 bar/13000 kPa -1 bar/-100 kPa
Absolute pressure
0 … 1 bar/0 … 100 kPa 35 bar/3500 kPa
0 … 2.5 bar/0 … 250 kPa 50 bar/5000 kPa
0 … 5 bar/0 … 500 kPa 65 bar/6500 kPa
0 … 10 bar/0 … 1000 kPa 90 bar/9000 kPa
0 … 25 bar/0 … 2500 kPa 130 bar/13000 kPa
0 bar abs.
0 bar abs.
0 bar abs.
0 bar abs.
0 bar abs.
Nominal measuring ranges and overload capability in psig
Nominal range Overload, max. pressure Overload, min. pressure
Gauge pressure
0 … 1.5 psig 200 psig -3 psig
0 … 3 psig 290 psig -6 psig
0 … 6 psig 430 psig -12 psig
0 … 15 psig 500 psig -15 psig
0 … 35 psig 700 psig -15 psig
0 … 70 psig 950 psig -15 psig
0 … 150 psig 1300 psig -15 psig
0 … 350 psig 1900 psig -15 psig
0 … 900 psig 2900 psig -15 psig
Absolute pressure
0 … 15 psi 500 psi
0 … 35 psi 700 psi
0 … 70 psi 900 psi
0 … 150 psi 1300 psi
0 … 350 psi 1900 psi
0 psi
0 psi
0 psi
0 psi
0 psi
Output variable
Output signal 4 … 20 mA/HART
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 29
ement
Suppl
l resolution 2 µA
Signa
Failure signal < 3.6 mA; 20.5 mA; 22 mA; unchanged
(adjustable via PACTware™)
Max. output current 22 mA
Run-up time 15 s
Step response time 200 ms (ti: 0 s, 0 … 63 %)
Fulfilled NAMUR recommenda-
NE 43
tions
Additional output parameter - temperature
integrated resistance thermometer PT 100 according to DIN EN 60751
Range -50 … +100 °C (-58 … +212 °F)
Resolution 1 °K
Reference conditions and actuating variables (similar to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
- Temperature +15 … +25 °C (+59 … +77 °F)
- Relative humidity 45 … 75 %
- Air pressure 860 … 1060 mbar/86 … 106 kPa
(12.5 … 15.4 psig)
Determination of characteristics Limit point adjustment according to
IEC 61298-2
Characteristics curve linear
Reference installation position upright, diaphragm points downward
Influence of the installation position < 0.2 mbar/20 Pa (0.003 psi)
Deviation determined according to the limit point method according to IEC 60770
Applies
to digital HART interf
ace as well as to analogue current output 4 … 20 mA.
Specifications refer to the set span. Turn down (TD) is the relation nominal measuring
range/set span.
Deviation
- Turn down 1 : 1 up to 5 : 1 < 0.2 %
- Turn down up to 10 : 1 < 0.04 % x TD
5)
Incl. non-linearity, hysteresis and non-repeatability.
30 VE
GAWELL 51 • 4 … 20 mA/HART
5)
32468-EN-080604
Sup
plement
Influence
of the product or ambient temperature
Applies to digital HART interface as well as to analogue current output 4 … 20 mA.
Specifications refer to the set span. Turn down (TD) is the relation nominal measuring
range/set span.
Average temperature coefficient of the zero signal
In the compensated temperature range of 0 … +80 °C (+32 … +176 °F), reference
temperature 20 °C (68 °F).
Average temperature coefficient of the zero signal
- Turn down 1 : 1 < 0.15 %/10 K
- Turn down up to 5 : 1 < 0.2 %/10 K
- Turn down up to 10 : 1 < 0.25 %/10 K
Outside the compensated temperature range:
Average temperature coefficient of the zero signal
- Turn down 1 : 1 typ. < 0.15 %/10 K
Thermal change, current output
Applies also to the analogue 4 … 20 mA current output and refers to the set span.
Thermal change, current output < 0.15 % at -40 … +80 °C (-40 … +176 °F)
Long-term stability (similar to DIN 16086, DINV 19259-1 and IEC 60770-1)
Applies to digital HART interface as well as to analogue current output 4 … 20 mA.
Specifications refer to the set span. Turn down (TD) is the relation nominal measuring
range/set span.
Long-term drift of the zero signal < (0.1 % x TD)/year
Total deviation (similar to DIN 16086)
The total deviation F
, also called practical deviation, is the sum of the basic accuracy F
t
and long-term stability:
F
= Fp+ F
t
F
perf
s
= √((FT)2+ (FKl)2)
With
- F
: F
, total deviation
t
total
- F
: F
, basic accuracy
p
perf
- F
: F
, long-term drift
s
stab
: Temperature coefficient
- F
T
(influence of medium or ambient temperature)
: Deviation
- F
Kl
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 31
p
Suppl
ement
Ambient
conditions
Ambient temperature
- Connection cable PE -40 … +60 °C (-40 … +140 °F)
- Connection cable PUR, FEP -40 … +80 °C (-40 … +176 °F)
Storage and transport temperature -40 … +80 °C (-40 … +176 °F)
Process conditions
Max. process pressure, transmitter
- Measuring range 0.1 bar
15 bar (218 psig)
6)
(1.45 psig)
- Measuring range 0.2 bar
20 bar (290 psig)
7)
(2.9 psig)
- Measuring range ≤ 0.4 bar
25 bar (363 psig)
8)
(5.8 psig)
P
ressure stage, process fitting
- Threaded fitting 316L PN 3
Product temperature depending on suspension cable and measuring cell seal
Suspension cable Measuring cell seal Product temperature
PE FKM -20 … +60 °C (-4 … +140 °F)
PE EPDM -40 … +60 °C (-40 … +140 °F)
PUR FKM -20 … +80 °C (-4 … +176 °F)
PUR EPDM -40 … +80 °C (-40 … +176 °F)
FEP FFKM -10 … +80 °C (+14 … +176 °F)
Vibration resistance mechanical vibrations with 4 g and
9)
Electrome
Suspensi
5 … 100 Hz
chanical data
on cable
- Configuration six wires, one suspension cable, one breather
capillary, screen braiding, foil, mantle
- Wire cross-section 0.5 mm²
- Wire resistance ≤ 0.036 Ω/m
- Tensile strength ≥ 1200 N (270 pound force)
6)
Limited by the gauge pressure resistance of the measuring cell.
7)
Limited by the gauge pressure resistance of the measuring cell.
8)
Limitation by the pressure-tightness of the cable connection.
9)
Tested according to the regulations of German Lloyd, GL directive 2.
32 VE
GAWELL 51 • 4 … 20 mA/HART
32468-EN-080604
- Max. length 1000 m (3280 ft)
1200
880
600
380
12
18
16
9,6
14 20 22 24 26 28 29 30 32 34 36
Ω
V
1
4
2
3
- Min. bending
radius 25 mm (with 25 °C/77 °F)
- Diameter approx. 8 mm (0.315 in)
- colour (non-Ex/Ex) - PE black/blue
- colour (non-Ex/Ex) - PUR, FEP blue/blue
Voltage supply
Supply voltage
- Non-Ex instrument 9.6 … 36 V DC
- EEx-ia instrument 9.6 … 30 V DC
Permissible residual ripple
- < 100 Hz U
ss
< 1 V
- 100 Hz … 10 kHz Uss< 10 mV
Load see diagram
Sup
plement
Fig. 10: Voltage
1 HART load
2 Voltage limit Ex instrument
3 Voltage limit non-Ex instrument
3 Supply voltage
diagram
Integrated overvoltage protection
Nominal leakage current (8/20 µs) 5 kA
Min. response time < 25 ns
Electrical protective measures
Protection
- Transmitter IP 68 (25 bar)
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 33
ement
Suppl
oltage category III
Overv
Protection class III
Existing approvals or approvals applied for
10)
Approvals
- ATEX
ATEX
II 2G EEx ia IIC T6
- IEC IEC Ex ia IIC T6
- PTB Ex-Zone 2
- Ship approvals GL, LRS, ABS, CCS, RINA, DNV
10)
Deviating data in Ex applications: see separate safety instructions.
34 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
imensions
1 2
L
175 mm (6
57
/
64
")
228 mm (8
31
/
32
")
ø 22 mm
(
55
/
64
")
52 mm
(2
3
/
64
")
38,5 mm
(1
33
/
64
")
14 mm
(
35
/
64
")
48 mm
(1
57
/
64
")
22 mm
(
55
/
64
")
ø 8 mm
(
5
/
16
")
G1 ½A/
NPT1 ½
SW30
9.2 D
VEGAWELL 51
plement
Sup
Fig. 11: VEGAWELL 51
straining clamp
1 with
2 With threaded fitting, unassembled G1½ A (1½ NPT)
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 35
Suppl
ement
9.3 Indus
trial property rights
9.4 Trademark
VEGA product lines are global protected by industrial property
rights. Further information see http://www.vega.com.
Only in U.S.A.: Further information see patent label at the
sensor housing.
VEGA Produktfamilien sind weltweit geschützt durch
gewerbliche Schutzrechte.
Nähere Informationen unter http://www.vega.com.
Les lignes de produits VEGA sont globalement protégées par
des droits de propriété intellectuelle. Pour plus d'informations,
on pourra se référer au site http://www.vega.com.
VEGA lineas de productos están protegidas por los derechos
en el campo de la propiedad industrial. Para mayor
información revise la pagina web http://www.vega.com.
Линии продукции фирмы ВЕГА защищаются по всему
миру правами на интеллектуальную собственность.
Дальнейшую информацию смотрите на сайте http://www.
vega.com.
VEGA系列产品在全球享有知识产权保护。
进一步信息请参见网站<http://www.vega.com>。
All brands used as well as trade and company names are
property of their lawful proprietor/originator.
36 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
Sup
plement
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 37
Suppl
ement
38 VE
32468-EN-080604
GAWELL 51 • 4 … 20 mA/HART
Sup
plement
32468-EN-080604
VEGAWELL 51 • 4 … 20 mA/HAR
T 39
VEGA G rieshaber KG
ISO 9001
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
Printing date:
statements concerning scope of delivery, application,
All
practical use and operating conditions of the sensors and
processing systems correspond to the information avail-
able at the time of printing.
© VEGA Grieshaber KG, Schiltach/Germany 2008
Subject to change without prior notice 32468-EN-080604
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