Ope
rating Instructions
VEGAWELL 52
4 … 20 mA
Document ID:
35401
Proc
ess pressure/
Hydrostatic
Conten
ts
1 About this document
1.1 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
1.3 Symbolism used. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
2 For your safety
2.1 Authorised personnel . . . . . . . . . . . . . . . . . . . . . . . .
5
2.2 Appropriate use . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
2.3 Warning about misuse . . . . . . . . . . . . . . . . . . . . . . .
5
2.4 General safety instructions . . . . . . . . . . . . . . . . . . . .
5
2.5 Safety label on the instrument . . . . . . . . . . . . . . . . . .
6
2.6 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
2.7 NAMUR recommendations . . . . . . . . . . . . . . . . . . . .
6
2.8 Safety instructions for Ex areas . . . . . . . . . . . . . . . . .
6
2.9 Environmental instructions. . . . . . . . . . . . . . . . . . . . .
6
3 Product description
3.1 Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
3.2 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . .
8
3.3 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
3.4 Packaging, transport and storage . . . . . . . . . . . . . . .
9
3.5 Accessories and replacement parts . . . . . . . . . . . . . .
10
4 Mounting
4.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . .
11
4.2 Mounting steps with straining clamp . . . . . . . . . . . . .
12
4.3 Mounting steps with screwed connection . . . . . . . . . .
13
4.4 Mounting steps with threaded connection or housing .
14
5 Connecting to power supply
5.1 Preparing the connection . . . . . . . . . . . . . . . . . . . . .
15
5.2 Connection procedure. . . . . . . . . . . . . . . . . . . . . . . .
17
5.3 Wiring plan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
5.4 Switch-on phase. . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
6 Maintenance and fault rectification
6.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
6.2 Remove interferences . . . . . . . . . . . . . . . . . . . . . . . .
21
6.3 Shorten suspension cable . . . . . . . . . . . . . . . . . . . . .
22
6.4 Shorten suspension cable . . . . . . . . . . . . . . . . . . . . .
22
6.5 Instrument repair . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
7 Dismounting
7.1 Dismounting steps . . . . . . . . . . . . . . . . . . . . . . . . . .
25
7.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
8 Supplement
8.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
2 VEG
AWELL 52 • 4 … 20 mA
Contents
35401-EN-111021
8.2 Dimen
sions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
Supplementary documentation
Informa
tion:
Supplementary documents appropriate to the ordered version come
with the delivery. You can find them listed in chapter "Product
description".
Editing status: 2011-10-10
VEGAWELL 52 • 4 … 20 mA 3
Contents
35401-EN-111021
1 Abou
t 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 qualified
personnel. The contents of this manual should be made available to
these personnel and put into practice by them.
1.3 Symbolism used
Inform
ation, tip, note
This symbol indicates helpful additional information.
Cauti
on: 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.
l List
The dot set in front indicates a list with no implied sequence.
à Action
Th
is arrow indicates a single action.
1 Sequence
Numbers set in front indicate successive st eps in a procedure.
4 VEG
AWELL 52 • 4 … 20 mA
1 Abou
t this document
35401-EN-111021
2 F
or 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 protective
equipment must always be worn.
2.2 Appropriate use
VEGAWELL 52 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.
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 countryspecific 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 trouble-free
operation of the instrument.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new
regulations.
VEGAWELL 52 • 4 … 20 mA 5
2 For
your safety
35401-EN-111021
2.5 Safety
label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 CE conformity
This device fulfills the legal requirements of the applicable EC
guidelines. By attaching the CE mark, VEGA provides a confirmation
of successful testing. You can find the CE conformity declaration in the
download area of
www.vega.com.
2.7 N
AMUR recommendations
NAMUR is a user association for automation technology in the process
industries in Germany. Several of its key activities are defining
standards as well as setting user requirements on new devices,
systems and technologies. The published NAMUR recommendations
(NE) are accepted as the standard in field instrumentation.
The device fulfills the requirements of the following NAMUR
recommendations:
l NE 21 – Electromagnetic compatibility of equipment
l NE 43 – Standardization of the signal level for the breakdown
information of digital transmitters
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 Ex-approved
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:
l Chapter "Packaging, transport and storage"
l Chapter "Disposal"
6 VEG
AWELL 52 • 4 … 20 mA
2 For
your safety
35401-EN-111021
3 Produc
t description
3.1 Structure
The scope of delivery encompasses:
l VEGAWELL 52 pressure transmitter with suspension cable
l optionally available with straining clamp, screwed connection or
housing with cable locking
l Documentation
- this operating instructions manual
- test certificate
- Supplementary instructions "Suitable for drinking water" (op-
tional)
- Ex-specific "Safety instructions" (with Ex versions)
- if necessary, further certificates
VEGAWELL 52 with suspension cable consists of the following
components:
l Transmitter
l Suspension cable
l Optional fastening element or housing with threaded fitting
The components are available in different versions.
2
1
Fig. 1: Example
of a VEGAWELL 52 with transmitter 22 mm
1 Transmitter
2 Suspension cable
Sco
pe of delivery
Constituent parts
VEGAWELL 52 • 4 … 20 mA 7
3 Produc
t description
35401-EN-111021
Th
e type label contains the most important data for identification and
use of the instrument:
1
2
3
4
5
7
8
9
10 11
12
13
14
6
Fig. 2: Structure
type label VEGAWELL 52 (example)
1 Instrument type
2 Product code
3 Approvals
4 Process temperature
5 Signal output/Voltage supply
6 Materials transmitter/Measuring cell/Measuring cell seal/Connection cable
7 Measuring range
8 Cable length
9 Order number
10 Protection rating
11 Serial number of the instrument
12 Assignment connection cable temperature
13 ID numbers, instrument documentation
14 Assignment connection cable level
The serial number allows you to access the delivery data of the
instrument via
www.vega.com, "VEG
A Tools" and "serial number
search". You can also find the serial number on the type label on the
suspension cable or on the housing.
3.2 Principle of operation
VEGAWELL 52 is used for level and gauge measurement in wells,
basins and vessels open to the atmosphere, particularly in the water/
waste water industry as well as in the shipbuilding industry.
1)
The actual sensor element is the CERTEC
®
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.
1)
For
use
in closed vessels under vacuum, the instrument is available with
absolute pressure measuring ranges.
Type
label
Appli
cation area
Functional principle
8 VEG
AWELL 52 • 4 … 20 mA
3 Produc
t description
35401-EN-111021
As
a standard feature, the CERTEC®measuring cell is equipped with
a lateral, recessed seal.
Instruments with double seal have an additional seal in front.
Two-wire electronics 4 … 20 mA for power supply and measured
value transmission over the same cable.
The supply voltage range can differ depending on the instrument
version.
The data for power supply are specified in chapter "Technical data".
3.3 Operation
VEGAWELL 52 with 4 … 20 mA electronics has no adjustment
options.
3.4 Packaging, transport and storage
The device was protected by packaging during transport. Its capacity
to handle normal loads during transport is assured by a test according
to DIN EN 24180.
The packaging of standard instruments consists of environmentfriendly, 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 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 in the open
l Dry and dust free
l Not exposed to corrosive media
l Protected against solar radiation
l Avoiding mechanical shock and vibration
l Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
l Relative humidity 20 … 85 %
Sea
l concept
Voltage supply
Packaging
Transport
Transport inspection
Storage
Stora
ge and transport
temp
erature
VEGAWELL 52 • 4 … 20 mA 9
3 Produc
t description
35401-EN-111021
3.5 Acce
ssories and replacement parts
VEGADIS 62 is suitable for measured value indication and adjustment
of sensors with HART protocol. It is looped into the 4 … 20 mA/HART
signal cable.
VEGADIS 62 is suitable for measured value indication with sensors
without HART protocol.
You can find further information in the operating instructions
"VEGADIS 62" (Document-ID 36469).
The measuring instrument holder is used for wall/tube mounting of
VEGABAR series 50 pressure transmitters and VEGAWELL 52
suspension pressure transmitters. Supplied reducers enable the
adaptation to different instrument diameters. The material used is
316L.
External indicating and
adjus
tment unit VEGA-
DIS 62
Measuring instrument
holder
10 VEG
AWELL 52 • 4 … 20 mA
3 Produc
t description
35401-EN-111021
4 Moun
ting
4.1 General instructions
Make sure that all parts of the instrument exposed to the process, in
particular the sensor element, process seal and process fitting, are
suitable for the existing process conditions. These include above all
the process pressure, process temperature as well as the chemical
properties of the medium.
You can find the specifications in chapter "Technical data" or on the
type label.
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.
The connection cable has a capillary for atmospheric pressure
compensation. Therefore lead the cable end into a dry environment or
a suitable terminal housing, for example VEGABOX 02 or VEGA-
DIS 62.
Fig. 3: Mounting example: VEGAWELL 52 in a pump shaft with breather housing
VEGABOX 02
Suita
bility for the pro-
cess conditions
Mounting position
Pressure compensation
Mounting example
VEGAWELL 52 • 4 … 20 mA 11
4 M
ounting
35401-EN-111021
4.2 Mount
ing steps with straining clamp
2
3
1
Fig. 4: 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
3 Slide the clamping jaws upward and pu sh the suspension cable
between them
4 Hold the sus pension cable, push the clamping jaws downward
and fix them with a light blow
Removal is carried out in reverse order.
12 VEG
AWELL 52 • 4 … 20 mA
4 M
ounting
35401-EN-111021
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