T&D VEGAWELL 52 Operating Instructions Manual

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

4.3 Mount

ing steps with screwed connection

1

2

3

4

5

6

Fig. 5: Threaded fitting

1 Suspension

cable

2 Seal screw
3 Cone bushing
4 Seal cone
5 Threaded fitting
6 Seal

Mount VEGAWELL 52 with screwed connection 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 A or 1½ NPT on the vessel side

3 Insert the suspension cable from below into the open screwed

connection

4 Slide the seal cone and the cone sleeve over 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 Slide seal cone and cone sleeve to the requested position on the

cable

3 Fasten the seal screw
Removal is carried out in reverse order.

VEGAWELL 52 • 4 … 20 mA 13

4 M

ounting

35401-EN-111021

4.4 Mount

ing steps with threaded connection or

housing

2

3

1

Fig. 6: Plastic

housing

1 Housing
2 Seal
3 Thread

Mount VEGAWELL 52 as follows:

1 Weld the welded socket G1½ A or 1½ NPT to the vessel top
2 Shift transmitter through the mounting boss
3 Turn the thread with seal into the socket and tighten with SW 46

2)

Removal 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

2)

Seal

the 1½ NPT thread

with teflon, hemp or a similar resistant material.

Mount

into the vessel

Mounting into the basin

14 VEG

AWELL 52 • 4 … 20 mA

4 M

ounting

35401-EN-111021

5 Conn

ecting 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:

l Type B63-48 (use with VEGAWELL 52 with plastic housing) or
l 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 certificates 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 differ depending on the
instrument version.

The 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 52.

Keep in mind the following additional factors that influence the

operating voltage:

l Output 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.

Use cable with roundcross-section. A cable outer diameter of 5 … 9 mm
(0.2 … 0.35 in) ensures the seal effect of the cable gland. If you are

using cable with a different diameter or cross-section, exchange the
seal or use a suitable cable gland.

Saf

ety instructions

Take note of sa­fety instructions
for Ex applica­tions

Select power supply

Select connection cable

VEGAWELL 52 • 4 … 20 mA 15

5 Conn

ecting to power supply

35401-EN-111021

1

2

3

12 3 4 5 6

12 3 4 5 6

Fig. 7: Connect VEGAWELL 52 to

power supply

1 Direct connection
2 Connection via VEGABOX 02
3 Connection via housing

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.

Cable

screening and

groun

ding

16 VEG

AWELL 52 • 4 … 20 mA

5 Conn

ecting to power supply

35401-EN-111021

War

ning:

Within galvanic plants as well as vessels with cathodic corrosion
protection there are considerable potential differences. Considerably
equalisation currents can be caused via the cable scrren when the
screen is earthed on both ends. To avoid this, the cable screen must
only connected to ground potential on one side of the switching
cabinet in such applications. The cable screen must not be connected
to the internal ground terminal in the sensor and the outer ground
terminal on the housing not to the potential equalisation!

Informa

tion:

The metallic parts of the instrument (antenna, transmitter, concentric
tube, etc.) are conductively connected with the inner and outer ground
terminal on the housing. This connection exists either as a direct
metallic contact or via the shielding of the special connection cable on
instruments with external electronics. You can find specifications on
the potential connections within the instrument in chapter "Technical

data".

Ta

ke note of the corresponding installation regulations for Ex
applications.

5.2 Connection procedure

Proceed as follows:

1 Wire the connection cable up to the connection compartment

3)

2 Connect the 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 Push the cable into VEGABOX 02 through the cable entry
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

3)

The connection

cable is already preconfectioned. After shortening the ca-

ble, fasten the type plate with support again to the cable.

Selec

t connec-

tion

cable for Ex

applications

Direct connection

Connection via
VEGA

BOX 02

VEGAWELL 52 • 4 … 20 mA 17

5 Conn

ecting to power supply

35401-EN-111021

10 Screw

the housing cover on

The electrical connection is finished.

5.3 Wiring plan

4

1

223

Fig. 8: Wire

assignment, suspension cable

1 Blue (-): to power supply or to the processing system
2 Brown (+): to power supply or to the processing system
3 Shielding
4 Breather capillaries with filter element

1

2

–

+

1 2 3 4 5 6

1 2 3 4 5 6

Fig. 9: Wiring

plan VEGABOX 02

1 To power supply or the processing system
2 Shielding

4)

Wire number Wire colour/Polarity Terminal VEGABOX 02

1 brown (+) 1
2 blue (-) 2

Shielding Ground

4)

Connect

screen to ground terminal. Connect ground terminal on the outside

of the housing as prescribed. The two terminals are galvanically connected.

Direct

connection

Connection via
VEGA

BOX 02

18 VEG

AWELL 52 • 4 … 20 mA

5 Conn

ecting to power supply

35401-EN-111021

1

2

4

5

3

6

1

2

Fig. 10: Wiring

plan housing

1 To power supply or the processing system

1

2

+

( )

(-)

3 4

+

( )

(-)

1

2

3

Fig. 11: Wiring

plan, VEGADIS 62

1 To the sensor
2 For power supply
3 Coupling for the connection cable to the indicating and adjustment module

Wire number Wire colour/Polarity Terminal VEGADIS 62

1 brown (+) 1
2 blue (-) 2

Shielding Ground

5.4 Switch-on phase

After connecting VEGAWELL 52 to power supply or after a voltage
recurrence, the instrument carries out a self-check:

l Internal check of the electronics
l 4 … 20 mA output jumps to the failure signal

Conne

ction via housing

Connection via VEG

A-

DIS 62

VEGAWELL 52 • 4 … 20 mA 19

5 Conn

ecting to power supply

35401-EN-111021

After

the run-up period (specification see "Technical data"), the
instrument delivers an output signal of 4 … 20 mA. The value
corresponds to the actual level as we ll as the settings already carried
out, e.g. factory setting.

20 VEG

AWELL 52 • 4 … 20 mA

5 Conn

ecting to power supply

35401-EN-111021

6 Maint

enance and fault rectification

6.1 Maintenance

If the instrument is used properly, no special maintenance is required
in normal operation.

In some applications, product buildup on the diaphragm can influence
the measuring result. Depending on the sensor and application, take
precautions to ensure that heavy buildup, and especially a hardening
thereof, is avoided.

If necessary, clean the diaphragm. Make sure that the materials are
resistant to the cleaning process, see resistance list under "Services"
on "

www.vega.co

m". The wide variety of applications of isolating
diaphragms makes special cleaning instructions necessary for each
application. Please ask the VEGA agency serving you.

6.2 Remove interferences

The operator of the system is responsible for taking suitable measures
to rectify faults.

VEGAWELL 52 offers maximum reliability. 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 measure to be taken is to check the output signal. In many
cases, the causes can be determined this way and the faults rectified.

Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no. [phone].

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.

Connect a handheld multimeter in the suitable measuring range
according to the wiring plan.

? 4 … 20 mA signal not stable

l no atmospheric pressure compensation

à Check the capillaries and cut them clean

Maint

enance

Cleaning

Reaction when malfunc-

tions

occur

Failure reasons

Fault rectificat

ion

24 hour service hotline

Checking the 4 … 20 mA
sign

al

VEGAWELL 52 • 4 … 20 mA 21

6 M

aintenance and fault rectification

35401-EN-111021

à Check

the pressure compensation and clean the filter

element, if necessary

? 4 … 20 mA signal missing

l Wrong connection to voltage supply

à Check connection according to chapter "Connection steps"

and if necessary, correct according to chapter "Wiring plan"

l No power supply

à Check cables for breaks; repair if necessary

l Operating voltage too low or load resistance too high

à Check, adapt if necessary

In Ex

applications, the regulations for the wiring of intrinsically safe

circuits must be observed.

Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.

6.3 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:

Do

not squeeze the capillary cable, this will influence the 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.

6.4 Shorten suspension cable

The suspension cable can be shortened individually. For the version
with plastic or stainless steel housing proceed as follows:

1 Unscrew the housing cover
2 Loosen the screw terminals and remove the wire ends of the

suspension cable out of the screw terminals

3 Hold the hexagon on the screwed socket with SW 46 and loosen

with seal screw SW 22

Caution:

Seal

screw is secured with Loctide pink, mote breakaway torque!

Rea

ction after fault rec-

tifi

cation

22 VEG

AWELL 52 • 4 … 20 mA

6 M

aintenance and fault rectification

35401-EN-111021

1

2

Fig. 12: Step 4

1 SW 46
2 SW 22

4 Pull

the suspension cable out of the screwed socket, remove the

pressure screw, cone sleeve and seal cone from the cable

5 Remove the filter adapter from the transparent capillary line

4

3

2

5

6

7

1

Fig. 13: Configuration

of the cable seal

1 Connection cable (up to 6 pieces depending on the version)
2 Cable screening
3 Breather capillaries with filter element
4 Seal cone
5 Suspension cable
6 Cone bushing
7 Seal screw

VEGAWELL 52 • 4 … 20 mA 23

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aintenance and fault rectification

35401-EN-111021

6 Cut

the suspension cable with an edge cutter to the requested

length

7 Remove approx. 10 cm of the cable mantle, strip off approx. 1 cm

of the wire ends, insert the filter adapter

8 Shift the seal screw, cone sleeve and seal cone to the suspension

cable and insert the cable into the screwed socket, insert the wire
ends through the cable entry into the mounting plate

The work steps are finished.

6.5 Instrument 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.

l Print and fill out one form per instrument
l Clean the instrument and pack it damage-proof

l Attach the completed form and, if need be, also a safety data

sheet outside on the packaging

l Please ask the agency serving you for the address of your return

shipment. You can find the respective agency on our website
www.vega.com

under: "Company - VEGA worldwide"

24 VEG

AWELL 52 • 4 … 20 mA

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aintenance and fault rectification

35401-EN-111021

7 Dismou

nting

7.1 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.

7.2 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 pr ivately used products according
to the WEEE directive.

Correct disposal avoids negative effects on humans and the environ­ment and ensures recycling of useful raw materials.

Materials: see chapter "Technical data"

If you have no way to dispose of the old instrument properly, please

contact us concerning return and disposal.

VEGAWELL 52 • 4 … 20 mA 25

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35401-EN-111021

8 Supp

lement

8.1 Technical data

General data

Measured variable Level
Measuring principle Ceramic-capacitive, dry measuring cell
Communication interface None

Materials and weights

Materials, wetted parts

- Transmitter 316L, 316L with PE coating, 1.4462 (Duplex),

1.4462 with PE coating, PVDF, Titanium

- Protective cap PA, PE

- Diaphragm sapphire ceramic

®

(99.9 % oxide ceramic)

- Joining material diaphragm/Basic ele-
ment measuring cell

Glass solder

- Measuring cell seal FKM (VP2/A) - FDA and KTW approved, FFKM

(Perlast G75S), EPDM (A+P 75.5/KW75F)

- Suspension cable PE (FDA and KTW-approved), FEP, PUR

- Cable gland on the transmitter 316L

- Cable seal with PE, PUR cable FKM

- Cable seal with FEP cable FEP

- Process fitting 316L

- Straining clamp 1.4301

- Unassembled screw connection 316L, PVDF

- Threaded connection on the housing 316L

Ohmic contact Between ground terminal, metallic process fitting

and transmitter

Materials, non-wetted parts

- Housing plastic PBT (Polyester), 316L

- 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)

- Plastic housing 0.8 kg (1.764 lbs)

- Stainless steel housing 1.6 kg (3.528 lbs)

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Input

variable

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 capacity in bar/kPa

Nominal range Overload capacity, max.

pressure

Overload capacity, min.
pressure

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 bar abs.

0 … 2.5 bar/0 … 250 kPa 50 bar/5000 kPa

0 bar abs.

0 … 5 bar/0 … 500 kPa 65 bar/6500 kPa

0 bar abs.

0 … 10 bar/0 … 1000 kPa 90 bar/9000 kPa

0 bar abs.

0 … 25 bar/0 … 2500 kPa 130 bar/13000 kPa

0 bar abs.

Nominal measuring ranges and overload capacity in psig

Nominal range Overload capacity, max.

pressure

Overload capacity, 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 psi

0 … 35 psi 700 psi

0 psi

VEGAWELL 52 • 4 … 20 mA 27

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35401-EN-111021

Nominal

range Overload capacity, max.

pressure

Overload capacity, min.
pressure

0 … 70 psi 900 psi

0 psi

0 … 150 psi 1300 psi

0 psi

0 … 350 psi 1900 psi

0 psi

Output variable

Output signal 4 … 20 mA
Signal resolution 4 µA
Fault signal 22 mA
Max. output current 22 mA
Run-up time

- with deviation ≤ 0.2 % approximately 2 s

- with deviation ≤ 0.1 % approximately 15 s

Step response time

- with deviation ≤ 0.2 % approximately ≤ 100 ms (ti: 0 s, 0 … 63 %)

- with deviation ≤ 0.1 % approximately ≤ 200 ms (ti: 0 s, 0 … 63 %)

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 psi)

Determination of characteristics Limit point adjustment according to IEC 61298-2
Characterstic curve Linear
Reference installation position upright, diaphragm points downward
Influence of the installation position < 0.2 mbar/20 Pa (0.003 psig)

Deviation determined according to the limit point method according to IEC 60770

5)

Specifications refer to the set span. Turn down (TD) = nominal measuring range/set span.

Deviation with version < 0.2 %

- Turn down 1 : 1 up to 5 : 1 < 0.2 %

- Turn down up to 10 : 1 < 0.04 % x TD

Deviation with version < 0.1 %

- Turn down 1 : 1 up to 5 : 1 < 0.1 %

- Turn down up to 10 : 1 < 0.02 % x TD

5)

Incl. non-linearity, hysteresis

and

non-repeatability.

28 VEG

AWELL 52 • 4 … 20 mA

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35401-EN-111021

Infl

uence of the product or ambient temperature

Specifications refer to the set span. Turn down (TD) = 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 with version < 0.2 %

- 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

Average temperature coefficient of the zero signal with version < 0.1 %

- Turn down 1 : 1 < 0.05 %/10 K

- Turn down up to 5 : 1 < 0.1 %/10 K

- Turn down up to 10 : 1 < 0.15 %/10 K

Outside the compensated temperature range:

Average temperature coefficient of the zero signal

- Turn down 1 : 1 typ. < 0.15 %/10 K

Long-term stability (similar to DIN 16086, DINV 19259-1 and IEC 60770-1)

Specifications refer to the set span. Turn down (TD) = 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

t

, also called practical deviation, is the sum of the basic accuracy Fpand long-

term stability:

F

t

= Fp+ F

s

F

perf

= √((FT)2+ (FKl)2)

With

- Ft: F

total

, total deviation

- F

p

: F

perf

, basic accuracy

- F

s

: F

stab

, long-term drift

- FT: Temperature coefficient (influence of

medium or ambient temperature)

- FKl: Deviation

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)

VEGAWELL 52 • 4 … 20 mA 29

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35401-EN-111021

Proces

s conditions

Max. process pressure, transmitter

6)

- Measuring range 0.1 bar (1.45 psig) 15 bar (218 psig)

- Measuring range 0.2 bar (2.9 psig) 20 bar (290 psig)

- Measuring ranges from 0.4 bar (5.8 psig) 25 bar (363 psig)

Pressure stage, process fitting

- Unassembled screw connection 316L: PN 3, PVDF: unpressurized

- Thread on the housing PN 3

Product temperature, depending on the version

Suspension cable Transmitter Product temperature

PE All -20 … +60 °C (-4 … +140 °F)
PUR All -20 … +80 °C (-4 … +176 °F)
PUR PE coating -20 … +60 °C (-4 … +140 °F)
FEP All -20 … +80 °C (-4 … +176 °F)
FEP PE coating -20 … +60 °C (-4 … +140 °F)

Vibration resistance mechanical vibrations with 4 g and 5 … 100 Hz

7)

Electromechanical data

Suspension cable

- Structure 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)

- Max. length 1000 m (3280 ft)

- Min. bending radius 25 mm (with 25 °C/77 °F)

- Diameter approx. 8 mm (0.315 in)

- Cable extraction force

8)

≥ 650 N (146.1 lbf)

- colour (non-Ex/Ex) - PE black/blue

- colour (non-Ex/Ex) - PUR, FEP blue/blue

Cable entry housing 1 x cable gland M20 x 1.5 (cable: ø 5 … 9 mm), 1 x

blind stopper M20 x 1.5

Screw terminals for cable cross-section up to 1.5 mm² (AWG 16)

Voltage supply

Operating voltage 8 … 36 V DC

6)

Limited

by

the overpressure resistance of the measuring cell.

7)

Tested according

to the guidelines of German Lloyd, GL directive 2.

8)

With this extraction force, the suspension cable can be extracted out of the
transmitter.

30 VEG

AWELL 52 • 4 … 20 mA

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35401-EN-111021

Perm

issible residual ripple

- < 100 Hz U

ss

< 1 V

- 100 Hz … 10 kHz Uss< 10 mV

Load see diagram

1272

955

600

300

12 18

16148 10 20 22 24 26 28 29 30 32 34 36

Ω

V

2

1

Fig. 14: Voltage

diagram

1 Voltage limit
2 Operating voltage

Integrated overvoltage protection

Nominal leakage current (8/20 µs) 5 kA
Min. response time < 25 ns

Electrical protective measures

Protection rating

- Transmitter IP 68 (30 bar)

- Housing IP 66/IP 67

Overvoltage category III
Protection class III

Approvals

Instruments with approvals can have different technical data depending on the version.
That's why the associated approval documents have to be noted with these instruments. They are

part of the delivery or can be downloaded under

www.vega.co

m via "VEGA Tools" and "serial

number search" as well as via "Downloads" and "Approvals".

VEGAWELL 52 • 4 … 20 mA 31

8 Sup

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35401-EN-111021

8.2 D

imensions

VEGAWELL 52 - 316L/Titanium 22 mm

1 2

L

175 mm (6.89")

220 mm (8.66")

ø 22 mm

(0.87")

220 mm (8.66")

ø 22 mm

(0.87")

52 mm

(2.05")

38,5 mm

(1.52")

14 mm

(0.55")

48 mm
(1.89")

22 mm
(0.87")

ø 8 mm

(0.32")

G1 A/
NPT1

SW27
(1.06")

Fig. 15: VEGAWELL 52 - with

transmitter 316L/Titanium 22 mm

1 Transmitter with straining clamp
2 Transmitter with unassembled threaded fitting

32 VEG

AWELL 52 • 4 … 20 mA

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35401-EN-111021

VEGAWELL 52 - Titan

ium 33 mm

L

22 mm

(0.87")

G1 ½A/
NPT1 ½

316 L

~ 69 mm

(2.72")

ø 77 mm

(3.03")

112 mm (4.41")

M20x1,5/
½ NPT

321

SW 30 mm

(1.18")

G1½ A

175 mm (6.89")

ø 33 mm

(1.30")

210 mm (8.27")

38,5 mm

(1.52")

14 mm

(0.55")

ø 8 mm

(0.32")

48mm

(1.89")

ø 35 mm

(1.38")

ø 33 mm

(1.30")

210 mm (8.27")

ø 33 mm

(1.30")

210 mm (8.27")

ø 35 mm

(1.38")

ø 35 mm

(1.38")

SW46
(1.81")

Fig. 16: VEGAWELL 52 - with

transmitter 316L/Titanium 33 mm

1 Transmitter of titanium with straining clamp
2 Transmitter of titanium with unassembled threaded fitting
3 Transmitter of titanium with thread and plastic housing

VEGAWELL 52 • 4 … 20 mA 33

8 Sup

plement

35401-EN-111021

VEGAWELL 52 - Duplex/PVDF

SW46
(1.81")

L

22 mm

(0.87")

G1 ½A/
NPT1 ½

316 L

~ 69 mm

(2.72")

ø 77 mm

(3.03")

112 mm (4.41")

M20x1,5/
½ NPT

52 3 41

SW 30 mm

(1.18")

G1½ A

175 mm (6.89")

ø 32 mm

(1.26")

206 mm (8.11") / 208 mm (8.19")

ø 32 mm

(1.26")

206 mm (8.11") / 208 mm (8.19")

38,5 mm

(1.52")

14 mm

(0.55")

ø 8 mm

(0.32")

48 mm
(1.89")

ø 44 mm

(1.73")

ø 36 mm

(1.42")

ø 35 mm

(1.38")

227 mm (8.94")

218 mm (8.58")

67 mm

(2.64")

20 mm

(0.79")

G1 ½A/
NPT1 ½

SW 46

ø 32 mm

(1.26")

217 mm (8.54")

ø 35 mm

(1.38")

Fig. 17: VEGAWELL 52 - with

transmitter Duplex/PVDF

1 Transmitter Duplex standard/double seal with straining clamp
2 Transmitter Duplex for deep wells (end cap) with unassembled threaded fitting
3 Transmitter Duplex with PE coating
4 Transmitter with screwed connection of PVDF
5 Transmitter Duplex standard/double seal with thread and plastic housing

34 VEG

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35401-EN-111021

VEGAWELL 52 - Duplex

threaded fitting

L

234 mm (9.21")

20 mm

(0.79")

74 mm

(2.91")

ø 32 mm

(1.26")

ø 40 mm

(1.58")

SW 27 mm

(1.06")

ø 32 mm

(1.26")

230 mm (9.06")

ø 8 mm

(0.32")

ø 22 mm

(0.87")

ø 8 mm

(0.32")

G½

SW 41 mm

(1.61")

G1

G¼

18 mm

(0.71")

45 mm

(1.77")

ø 40 mm

(1.58")

1

2

Fig. 18: VEGAWELL 52 - with

threaded fitting and transmitter Duplex

1 Threaded fitting G½ inner G¼
2 Threaded fitting G1

VEGAWELL 52 • 4 … 20 mA 35

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35401-EN-111021

8.3 Indus

trial property rights

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 un ter 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>。

8.4 Trademark

All the brands as well as trade and company names used are property
of their lawful proprietor/originator.

36 VEG

AWELL 52 • 4 … 20 mA

8 Suppl

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35401-EN-111021

INDEX

A

Accessory

- External indicating and adjustment unit
VEGADIS 62 10

- Measuring instrument holder 10

Application area 8

C

Connection

- Directly 18

- Via housing 19

- Via VEGABOX 02 18

- Via VEGADIS 62 19

F

Functional principle 8

H

Hotline 21

M

Maintenance 21
Mounting position 11

P

Pressure compensation 11
Process conditions 11

R

Repair form 24

S

Safety data sheet 24
Seal concept 9
Service hotline 21
Shielding 16

T

Type label 8

V

Voltage supply 9, 15

VEGAWELL 52 • 4 … 20 mA 37

In

dex

35401-EN-111021

38 VEG

AWELL 52 • 4 … 20 mA

Index

35401-EN-111021

VEGAWELL 52 • 4 … 20 mA 39

In

dex

35401-EN-111021

VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
Phone [phone]
Fax [phone]
E-mail: [e-mail]

www.vega.com

Printing date:

ISO 9001

All

statements concerning scope of delivery, application,

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 2011

Subject to change without prior notice 35401-EN-111021