VEGA DIF55 User Manual

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Ope

rating Instructions

VEGADIF 55

4 … 20 mA/HART

Diﬀere

ntial pressure

Conten

1 About this document

2 For your safety

3 Product description

4 Mounting

1.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Symbolism used . . . . . . . . . . . . . . . . . . . . . . . . . . .

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 Safety approval markings and safety tips . . . . . . . . .

2.7 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8 Safety instructions for Ex areas . . . . . . . . . . . . . . . .

2.9 Environmental instructions . . . . . . . . . . . . . . . . . . . .

3.1 Conﬁguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Packaging, transport and storage . . . . . . . . . . . . . . .

4.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Mounting instructions for ﬂow measurement . . . . . . .

4.3 Mounting instructions for level measurement . . . . . . .

4.4 Mounting instructions with diﬀerential pressure

measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5 Mounting for instruments with isolating diaphragms ..

4.6 Mounting instructions for seal with ﬂange mounting . .

4.7 Heat insulation of instruments with ﬂange isolating

diaphragm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.8 Mounting instructions for wall or tube mounting . . . . .

4.9 Mounting control . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 4 4

5 5 5 5 6 6 6 6 6

7 8 9 9

11 12 15

20 21 24

24 26 26

5 Connecting to power supply

5.1 Preparing the connection . . . . . . . . . . . . . . . . . . . . .

5.2 Connection procedure . . . . . . . . . . . . . . . . . . . . . . .

5.3 Wiring plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4 Take 4 … 20 mA test signal . . . . . . . . . . . . . . . . . . .

5.5 Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.6 Connection control . . . . . . . . . . . . . . . . . . . . . . . . .

5.7 Switch on phase . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Operation

6.1 Short description . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Local indication (optional) . . . . . . . . . . . . . . . . . . . .

6.3 Adjustment elements . . . . . . . . . . . . . . . . . . . . . . . .

6.4 Local adjustment - local indication not connected . . .

2 VEG

27 28 28 30 30 30 31

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ADIF 55 • 4 … 20 mA/HART

Contents

6.5 Loca

6.6 Data memory module (optional) . . . . . . . . . . . . . . . .

6.7 Copy conﬁguration data . . . . . . . . . . . . . . . . . . . . . .

6.8 Adjustment via HART handheld . . . . . . . . . . . . . . . .

6.9 Lock/Unlock adjustment . . . . . . . . . . . . . . . . . . . . . .

6.10 Default setting (reset) . . . . . . . . . . . . . . . . . . . . . . .

6.11 Menu schematic . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Set up

7.1 Warning instructions . . . . . . . . . . . . . . . . . . . . . . . .

7.2 Installation and function control . . . . . . . . . . . . . . . . .

7.3 Select language and measuring mode . . . . . . . . . . .

7.4 Position correction . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5 Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . .

7.6 Level measurement . . . . . . . . . . . . . . . . . . . . . . . . .

7.7 Diﬀerential pressure measurement . . . . . . . . . . . . . .

8 Maintenance and fault rectiﬁcation

8.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2 Remove interferences . . . . . . . . . . . . . . . . . . . . . . .

8.3 Replacement parts . . . . . . . . . . . . . . . . . . . . . . . . .

8.4 Instrument repair . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 Dismounting

9.1 Dismounting steps . . . . . . . . . . . . . . . . . . . . . . . . . .

9.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Supplement

10.1 Technical data and dimensions . . . . . . . . . . . . . . . .

l adjustment - local indication connected . . . . . .

40 44 45 48 48 49 52

57 57 57 58 59 64 74

78 78 78 79

80 80

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VEGADIF 55 • 4 … 20 mA/HA

Supplementary documentation

tion:

Informa

Supplementary documents appropriate to the ordered version come with the delivery. You can ﬁnd them listed in chapter "Product

description".

RT 3

1 Abou

t this document

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 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.

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

is arrow indicates a single action.

1 Sequence

Numbers set in front indicate successive steps in a procedure.

4 VEG

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ADIF 55 • 4 … 20 mA/HART

your safety

2 For

or your safety

2 F

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

VEGADIF 55 is a diﬀerential pressure transmitter for measurement of ﬂow, level or diﬀerential pressure.

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.

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VEGADIF 55 • 4 … 20 mA/HA

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 required occupational safety measures with the current valid rules and regulations and also take note of new regulations.

RT 5

2 For

your safety

2.5 Safety

The safety approval markings and safety tips on the device must be observed.

approval markings and safety tips

2.6 Safety approval markings and safety tips

The safety approval markings and safety tips on the device must be observed.

2.7 CE conformity

VEGADIF 55 is CE conform to EMVG (89/336/EWG), NSR (73/23/ EWG) and corresponds to NAMUR recommendation EMC (NE 21).

Conformity has been judged according to the following standards:

l EMC: Emission EN 61326 instrument B, susceptibility EN 61326

supplement A (industrial area)

l LVD: EN 61010-1

The instrument corresponds to article 3 (3) of EG directive 97/23/EG

pressure device regulation and is designed according to good engineering experience. VEGADIF 55 as basic instrument with PN 420 withtout isolating diaphragm is suitable for stable gases of group 1, category 1.

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"

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+ –

3 Produc

t description

Scope of delivery

Components

3 Produc

t description

3.1 Conﬁguration

The scope of delivery encompasses:

l VEGADIF 55 diﬀerential pressure transmitter l Version with lateral ﬂanges of 316L or C22.8: in addition 2

ventilation valves, 316L

l Version with lateral ﬂanges of 316L or C22.8 and lateral

ventilations: in addition 4 closing screws, 316L

l Optional accessory l Documentation

- this operating instructions manual

- Short instruction (in housing cover)

- Final inspection protocol

- Supplementary instructions manual - 31732 "Service instruc-

tions for VEGADIF 55"

- Ex-speciﬁc "Safety instructions" (with Ex-versions)

- if necessary, further certiﬁcates

VEGADIF 55 consists of the following components:

l Process ﬁtting w ith measuring cell l Housing with electronics, optionally available with plug connector l Housing cover, optionally available with local indication

The components are available in diﬀerent versions.

Type label

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VEGADIF 55 • 4 … 20 mA/HA

Fig. 1: VEGADIF 55 in 1 Housing cover, optionally available with subjacent on-site indication 2 Housing with electronics 3 Process ﬁtting with measuring cell

The type label contains the most important data for identiﬁcation and use of the instrument:

l Article number l Serial number

basic version

RT 7

3 4

3 Produc

t description

hnical data

l Tec l Article numbers documentation

With the serial number, you can access the delivery data of the instrument via " search". In addition to the type label outside, you can also ﬁnd the serial number on the inside of the instrument.

www.vega.com", "VEGA Tools" and "serial number

3.2 Principle of operation

Area of application

Functional principle

VEGADIF 55 is a diﬀerential pressure transmitter for measurement of ﬂow, level or diﬀerential pressure. Measured products are gases,

vapours and liquids.

The sensor element is a metallic measuring cell. The process pressure is transmitted via the separating diaphragm and ﬁlling oil to the resistance measuring bridge (semi-conductor technology). The diﬀerential-pressure dependent change of the bridge voltage is measured, further processed and converted into a corresponding output signal.

The conﬁguration of the measuring cell diﬀers depending on the measuring range:

Fig. 2: Metal 1 Measuring element 2 Silicone diaphragm 3 Separating diaphragm 4 Filling oil 5 Integrated overvoltage arrester

measuring cell 10 mbar and 30 mbar

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ADIF 55 • 4 … 20 mA/HART

2 3

3 Produc

t description

Voltage supply

Packaging

Fig. 3: Metal 1 Measuring element 2 Overload diaphragm/Middle diaphragm 3 Filling oil 4 Separating diaphragm

Two-wire electronics 4 … 20 mA/HART for power supply and measured value transmission over the same cable.

The voltage supply range can diﬀer depending on the instrument version. The exact range is stated in chapter "Wiring plan " or

"Technical data" in the product information manual "VEGADIF 55".

measuring cell from 100 mbar

3.3 Operation

VEGADIF 55 can be adjusted with diﬀerent adjustment media:

l via integrated adjustment keys and local indication (available as

options)

l an adjustment software according to FDT/DTM standard, e.g.

PACTware and PC

l with manufacturer-speciﬁc adjustment programs AMS™ or PDM l With a HART handheld

The entered parameters are generally saved in VEGADIF 55, optionally also in PACTware.

3.4 Packaging, transport and storage

Your instrument was protected by packaging during transport. Its capacity to handle normal loads during transport is assured by a test 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.

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VEGADIF 55 • 4 … 20 mA/HA

RT 9

3 Produc

t description

Transport

Transport inspection

Storage

Storage and transport

temperature

sport must be carried out under consideration of the notes on the

Tran 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 %

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ADIF 55 • 4 … 20 mA/HART

max. 380°

4 M

ounting

Materials, wetted parts

Mounting position

4 Moun

ting

4.1 General instructions

Make sure that the wetted parts of VEGADIF 55, 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 ﬁnd the speciﬁcation in the "Product information manual" VEGADIF 55 in chapter "Technical data".

Select such a mounting position that the instrument is in easy reach

when mounting or connecting as well as for later retroﬁtting of the indicating and adjustment module. After loosening the pin, the housing can be rotated by 380°.

Proceed as follows:

1 Loosen the pin with a 2 mm Allen wrench 2 Rotate the housing (max. up to 380°) 3 Tighten the pin

Installation position

Eﬀective pressure lines

Valve block

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VEGADIF 55 • 4 … 20 mA/HA

Fig. 4: Direct

Due to the installation position of VEGADIF 55, a zero point shifting can be caused, i.e. the measured values is not zero with empty vessel. You can correct this zero point shoft either directly on the instrument via the "E" key or the remote adjustment, see chapter "Operating elements" and "Position adjustment".

You ﬁnd general recommendations for wiring of eﬀective pressure lines in DIN 19210 "Eﬀective pressure lines for ﬂow systems" or the corresponding national or international standards. When wiring eﬀective pressure lines outdoors, keep in mind to use a suitable antifreeze, e.g. by using tube heat tracing. Wire eﬀective pressure lines with a monotonic decrease of at least 10 %.

Using a three-fold or ﬁve-fold valve block ensures easy setup, mounting and maintenance without interrupting the process.

RT 11

the housing

–

ounting

4 M

Oxygen applications

Dange

Instruments for oxygen applications should be unpacked just before mounting. After removing the protective cover of the process ﬁtting, the label "O₂" will be visible on the process ﬁtting. Penetration of oil, grease and dirt should be avoided. Danger of explosion!

Moisture

Flow measurement in

gases

Use the recommended cables (see chapter "Connecting to power supply") and tighten the cable gland.

You can give your VEGADIF 55 additional protection against moisture penetration by leading the connection cable downward in front of the cable entry. Rain and condensation water can thus drain oﬀ. This applies mainly to outdoor mounting as well as installation in areas where high humidity is expected (e.g. through cleaning processes) or on cooled or heated vessels.

4.2 Mounting instructions for ﬂow measurement

Fig. 5: Measurement 1 VEGADIF 55 2 Three-fold valve block 3 Block valves 4 Oriﬁce or impact pressure probe

setup, ﬂow measurement in gases with VEGADIF 55

à Mount VEGADIF 55 above the measurement loop so that

12 VEG

condensate can drain oﬀ in the process cable.

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

–

3 3

5 5

6 6

Flow measurement in vapours

4 M

ounting

Fig. 6: Measurement 1 Condensate vessels 2 Oriﬁce or impact pressure probe 3 Block valves 4 VEGADIF 55 5 Precipitator 6 Drain valves 7 Three-fold valve block

à Mount VEGADIF 55 below the measurement loop à Mount condensate vessels at the same height with the discharge

socket and at the same distance to VEGADIF 55

à Fill the eﬀective pressure lines to the height of the condensate

vessels before setup

setup, ﬂow measurement in vapours with VEGADIF 55

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 13

–

2 2

5 5

4 4

ounting

4 M

Flow measurement in liquids

Fig. 7: Measurement 1 Oriﬁce or impact pressure probe 2 Block valves 3 VEGADIF 55 4 Precipitator 5 Drain valves 6 Three-fold valve block

à Mount VEGADIF 55 below the measurement loop so that the

eﬀective pressure lines are always ﬁlled with liquid and gas bubbles can bubble up to the process line

à For measurements in products with solid content such as e.g. dirty

liquids, the installation of separators and drain valves is recommended to enable collection and removal of debris and sediment.

à Fill the eﬀective pressure lines to the height of the condensate

vessels before setup

setup, ﬂow measurement in liquids with VEGADIF 55

31731-EN-081119

14 VEG

ADIF 55 • 4 … 20 mA/HART

atm

min.

atm

–

min.

atm

4 M

ounting

Level measurement in the open vessel with eﬀective pressure line

Level measurement in the open vessel with ﬂange

4.3 Mount

Fig. 8: Measurement 1 Minus side is open to the atmospheric pressure 2 VEGADIF 55 3 Block valve 4 Precipitator 5 Drain valve

à Mount VEGADIF 55 below the lower measurement connection so

that the eﬀective pressure lines are always ﬁlled with liquid

à Minus side is open to the atmospheric pressure

ing instructions for level measurement

setup, level measurement in the open vessel

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Fig. 9: Measurement 1 VEGADIF 55 2 Minus side is open to the atmospheric pressure

à Mount VEGADIF 55 directly to the vessel à Minus side is open to the atmospheric pressure

setup, level measurement in the open vessel

RT 15

–

min.

max.

ounting

4 M

Level measurement in closed vessel with effective pressure line

Fig. 10: Measurement 1 Block valves 2 VEGADIF 55 3 Precipitator 4 Drain valves 5 Three-fold valve block

à Mount VEGADIF 55 below the lower measurement connection so

that the eﬀective pressure lines are always ﬁlled with liquid

à Connect minus side always above the max. level à For measurements in products with solid content such as e.g. dirty

liquids, the installation of separators and drain valves is recommended to enable collection and removal of debris and sediment.

setup, level measurement in closed vessel

16 VEG

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ADIF 55 • 4 … 20 mA/HART

–

max.

min.

–

min.

max.

Level measurement in closed vessel with ﬂange

4 M

ounting

Level measurement in closed vessel with cell isolating diaphragms

Fig. 11: Measurement 1 Block valve 2 Precipitator 3 Drain valve 4 VEGADIF 55

à Mount VEGADIF 55 directly to the vessel à Connect minus side always above the max. level à For measurements in products with solid content such as e.g. dirty

liquids, the installation of separators and drain valves is recommended to enable collection and removal of debris and sediment.

Fig. 12: Measurement 1 VEGADIF 55

à Mount VEGADIF 55 below the lower isolating diaphragm à The ambient temperature should be the same for both capillaries

setup, level measurement in closed vessel

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 17

–

min.

max.

5 5

ounting

4 M

Level measurement in closed vessel with steam layer with eﬀective pressure line

tion:

Informa

Level measurement is only ensured between the upper edge of the lower and the lower edge of the upper pressure transmitter.

Fig. 13: Measurement 1 Condensate vessel 2 Block valves 3 VEGADIF 55 4 Precipitator 5 Drain valves 6 Three-fold valve block

à Mount VEGADIF 55 below the lower measurement connection so

that the eﬀective pressure lines are always ﬁlled with liquid

à Connect minus side always above the max. level à The condensate vessel ensures a constant pressure on the minus

side

à For measurements in products with solid content such as e.g. dirty

liquids, the installation of separators and drain valves is recommended to enable collection and removal of debris and sediment.

setup in closed vessel with superimposed steam

18 VEG

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ADIF 55 • 4 … 20 mA/HART

–

min.

max.

Level measurement in closed vessel with superimposed steam with ﬂange

4 M

ounting

Fig. 14: Measurement 1 Condensate vessel 2 Block valve 3 Precipitator 4 Drain valve 5 VEGADIF 55

à Mount VEGADIF 55 directly to the vessel à Connect minus side always above the max. level à The condensate vessel ensures a constant pressure on the minus

side

à For measurements in products with solid content such as e.g. dirty

liquids, the installation of separators and drain valves is recommended to enable collection and removal of debris and sediment.

setup in closed vessel with superimposed steam

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 19

➃

–

4 M

ounting

Diﬀerential pressure measurement in gases and vapours

Diﬀerential pressure measurement in liquids

4.4 Mount

ing instructions with diﬀerential

pressure measurement

Fig. 15: Measurement vapours with VEGADIF 55

1 VEGADIF 55 2 Three-fold valve block 3 Block valves 4 E.g. ﬁlter

à Mount VEGADIF 55 above the measurement loop so that

condensate can drain oﬀ in the process cable.

setup, diﬀerential pressure measurement in gases and

Fig. 16: Measurement 1 E.g. ﬁlter 2 Block valves 3 VEGADIF 55 4 Precipitator 5 Drain valves 6 Three-fold valve block

setup, ﬂow measurement in liquids with VEGADIF 55

20 VEG

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ADIF 55 • 4 … 20 mA/HART

–

4 M

ounting

Diﬀerential pressure measurement in gases, vapours and liquids

à Moun

à For measurements in products with solid content such as e.g. dirty

Fig. 17: Measurement vapours and liquids with VEGADIF 55

1 Cell isolating diaphragm 2 Capillaries 3 E.g. ﬁlter 4 VEGADIF 55

à Mount isolating diaphragm with capillaries on top or laterally on the

à In vacuum applications: Mount VEGADIF 55 below the measure-

à The ambient temperature should be the same for both capillaries

t VEGADIF 55 below the measurement loop so that the eﬀective pressure lines are always ﬁlled with liquid and gas bubbles can bubble up to the process line

liquids, the installation of separators and drain valves is recommended to enable collection and removal of debris and sediment.

setup, diﬀerential pressure measurement in gases,

pipeline

ment loop

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VEGADIF 55 • 4 … 20 mA/HA

4.5 Mounting for instruments with isolating

diaphragms

Isolating diaphragm

Note these general instructions to the isolating diaphragms:

Note:

isolating diaphragm together with a pressure transmitter forms

l An

a closed, calibrated system which is ﬁlled through openings in the isolating diaphragm and the measuring element of the pressure transmitter. These openings are sealed and must not be opened!

l Do not clean or touch the isolating diaphragm with hard or sharp

subjects

l Remove the diaphragm protection just before installation l When using a mounting strap, there must be suﬃcient strain relief

for the capillaries to avoid bending them (bendingradius ≥ 100 mm)

RT 21

+ –

–

≥ 100 mm

4 M

ounting

l Reme

mber that due to the hydrostatic pressure of the liquid columns in the capillaries, a zero point shift can occur. The zero point shift can be corrected, see also "Position adjustment".

l Keep the application limits of the isolating diaphragm ﬁlling oil in

mind according to the Product Information manual VEGADIF 55,

"Planning instructions isolating diaphragms"

Capillaries

To achieve more precise measuring results and avoid instrument malfunctions, the capillaries must be mounted as follows:

Note:

l Vibr

ation-free (to avoid additional pressure ﬂuctuations)

l Not close to heating or cooling lines l Insulate them in cooler or warmer environment l Lay wire with a bend radius ≥ 100 mm l With isolating diaphragms on both sides, the ambient temperature

and length of both capillaries should be the same

l Always two identical isolating diaphragms (e.g. diameter, material

etc.) should be used for the minus and plus side (standard shipment)

Fig. 18: Mounting VEGADIF 55 with vacuum application: place the pressure transmitter below the lower isolating diaphragm

22 VEG

isolating diaphragms and capillaries with

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

+ –

–

ounting

4 M

um application

Vacu

In applications under vacuum, we recommend mounting the pressure transmitter below the lower isolating diaphragm. A vacuum load on the isolating diaphragm due to the ﬁlling oil in the capillaries is thus avoided.

When mounting the pressure transmitter above the lower isolating diaphragm, the max. diﬀerence in height H1 must not be exceeded according to the following illustrations. The max. diﬀerence in height depends on the density of the ﬁlling oil and the smallest pressure which can occur on the plus side of teh isolating diaphragm (empty vessel), see following illustration.

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VEGADIF 55 • 4 … 20 mA/HA

Fig. 19: Mounting

above the lower isolating diaphragm

RT 23

0,0

2,0

4,0

6,0

8,0

10,0

12,0

100 300 400 500 600 700 800 900 1000

mbar

200

1 2

4 M

ounting

Fig. 20: Diagram vacuum applications depending on the pressure on the isolating diaphragm on the plus side

1 Vegetable oil 2 Silicone oil 3 High temperature oil 4 Inert oil

max. mounting height above the lower isolating diaphragm in

4.6 Mounting instructions for seal with ﬂange

mounting

Fig. 21: Mounting 1 Diaphragm 2 Seal

4.7 Heat insulation of instruments with ﬂange

isolating diaphragm

VEGADIF 55 with unilateral ﬂange isolating diaphragm must only be isolated up to a certain height. The max. permissible isolating heigth is marked on the instruments and applies to an isolating material with a heat conductance ≤ 0.04 W/(m x K) and fa max. permitted ambient

24 VEG

the versions with ﬂange or isolating diaphragm

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

λ 0,04≤

m K•

4 M

ounting

temperature T

≤ 70 °C (158 °F) and process temperature TP< 350 °C

(662 °F). The data were determined under the critical application "resting air".

Fig. 22: Max. permissible

isolating height

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 25

97,5

135

124

106

37,5

4 M

ounting

4.8 Mount

mounting

Fig. 23: Mounting

ing instructions for wall or tube

strap for wall or tube mounting

Take note of the following when mounting:

l Instruments with capillary lines: Mount capillaries with a bending

radius of ≥ 100 mm

l Slightly grease the mounting screws so that the threaded

connetion remains detachable

l For tube mounting, tighten the nuts on the strap with a torque of at

least 30 Nm

4.9 Mounting control

Check the following after mounting the instrument:

26 VEG

l Did you tighten all screws? l Housing cover tightened? l Did you tighten the closing screws and the ventilation valves?

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

ecting to power supply

5 Conn

Note safety instructions

Take note of

safety instructions for Ex applications

Select power supply

Selecting connection

cable

5 Conn

ecting to power supply

5.1 Preparing the connection

Always keep in mind the following safety instructions:

l Connect only in the complete absence of line voltage l If overvoltage surges are expected, overvoltage arresters should

be installed.

We recommend using VEGA overvoltage arresters B63-48 and ÜSB 62-36G.X.

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 two-wire cable. The voltage supply range can diﬀer depending on the instrument version.

Data for power supply is speciﬁed in chapter "Technical data".

Provide a reliable separation between the supply circuit and the mains

circuits according to DIN VDE 0106 part 101. The VEGA power supply units VEGATRENN 149AEx, VEGASTAB 690, VEGADIS 371 as well as all VEGAMETs meet this requirement.

Bear in mind the following factors regarding supply 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)

The instrument is connected with standard, twisted and screened twowire cable with round cross section. An outer cable diameter of 5 ... 9 mm (0.2 ... 0.35 in) ensures the seal eﬀect of the cable gland.

Cable screening and grounding

Select connection cable for Ex applications

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Optimum shielding agains intefering inﬂuences can be achieved if the

screening is connected to both sides (in the switching cabinet and on the instrument). If potential equalisation currents are expected, the screening must be earthed only on one end, preferably on the transmitter.

the corresponding regulations when used in hazardous areas. All

Note Ex instruments are shipped with a separate Ex documentation with

additional technical data and instructions.

Provide potential equalisation inside and outside hazardous areas. Connect all instruments to the local potential equalisation.

Instruments with integrated overvoltage protection must be grounded.

RT 27

Test

4... 20mA

ecting to power supply

5 Conn

Housing overview

5.2 Conne

ction procedure

Proceed as follows:

1 Unscrew the housing cover 2 Loosen compression nut of the cable entry 3 Remove approx. 10 cm (4 in) of the cable mantle, strip approx.

1 cm (0.4 in) insulation from the ends of the individual wires

4 Insert the cable through the cable gland into the sensor 5 Loosen the screws on the terminals 6 Insert the wire ends into the open terminals according to the wiring

plan

7 Tighten the screws of the terminals 8 Check the hold of the wires in the terminals by lightly pulling on

them

9 Connect the screen to the internal ground terminal, connect the

outer ground terminal with potential equalisation

10 Tighten the compression nut of the cable entry. The seal ring must

completely encircle the cable

11 Screw the housing cover on The electrical connection is ﬁnished.

5.3 Wiring plan

Fig. 24: Housing 1 Housing 2 Bridge for 4 … 20 mA test signal 3 Internal ground terminal 4 External ground terminal 5 4 … 20 mA test signal between plus and test terminal

28 VEG

overview, view to the connection compartment

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

Tes t4... 20mA

4...20 mA

10,5 V DC

11,5 V DC

Tes t

1 2

Han7D

–

+ –

VEGADIF55

–

VEGADIF55

M12x1

–

+–

–

Wiring plan

ecting to power supply

5 Conn

Wiring plan, plug connector Harting Han7D

Wiring plan, plug connector M12 x 1

Fig. 25: Wiring 1 Supply voltage/Signal output: min. supply voltage 10.5 V DC, bridge is

plugged according to illustration

2 Supply voltage/Signal output: min. supply voltage 11.5 V DC, position "Test"

is plugged with the bridge

Fig. 26: Wiring electrical connection in the instrument; on the right, view to the plug on the instrument

plan VEGADIF 55

plan VEGADIF 55 with plug connector Harting Han7D. On the left,

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Fig. 27: Wiring electrical connection in the instrument; on the right, view to the plug on the instrument

plan VEGADIF 55 with plug connector M12 x 1. On the left,

RT 29

Test

1 2

≤

10,5

[V]

40 45

1282

1500

847

413

Test

Ω

Lmax

U - 10,5 V

23 mA

[ ]

11,5

[V]

40 45

1239

1456

804

369

Test

≤

Lmax

U - 11,5 V

23 mA

Ω

Lmax

[ ]

ecting to power supply

5 Conn

5.4 Take 4 … 20 mA test

signal

Without interrupting the measurement you can tap a 4 … 20 mA test signal via the plug and test terminal. By simply switching the bridges, you can lower the min. supply voltage of the measuring instrument. Through this it also possible to operate the instrument with a weaker voltage source. To keep the measurement error below 0.1 %, the current meter should show an inner resistance of < 0.7 Ω. Take note of the bridge position according to the following illustrations.

Fig. 28: Left: Position voltage 10.5 V DC. Right: Position of the bridge with test signal. Min. supply voltage 11.5 V DC.

position of the bridge without test signal. Min. supply

5.5 Load

Fig. 29: Load

diagrams: Note position of the bridge and ﬂame prooﬁng. RLmax

max. load resistance, U voltage supply

1 Bridge for 4 … 20 mA test signal plugged in position "Non-test" 2 Bridge for 4 … 20 mA test signal plugged in position "Test" 3 Voltage supply 10.5 (11.5) … 30 V DC for EEx ia, 1/2 D, 1 GD, 1/2 GD, FM

IS and CSA IS

4 Supply voltage 10.5 (11.5) … 45 V DC for instruments for Ex-free area, 1/

3 D, EEx d, EEx nA, FM XP, FM DIP, FM NI, CSA XP and CSA Dust-Ex

30 VEG

5.6 Connection control

Check the following after electrical installation of the instrument:

l Does the supply voltage correspond to the speciﬁcation on the

type label?

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

ecting to power supply

5 Conn

the instrument connected according to chapter "Connecting to

l Is

power supply"?

l Did you tighten all screws? l Did you screw up the housing covers?

The green LED on the electronics module lights for a few seconds or the connected local indication lights if the voltage is switched on on the instrument.

5.7 Switch on phase

Switch on phase

After VEGADIF 55 is connected to voltage supply or after voltage recurrence, the instrument carries out a self-check. The following steps are carried out:

l Internal check of the electronics l For approx. 3 sec onds, the output signal takes on the value 12 mA

Then the actual measured value is displayed and the corresponding current is transmitted to the cable.

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

The values correspond to the actual measured value as well as to the settings already carried out, e.g. default setting.

RT 31

6 Operati

Function/Conﬁguration

6 Operati

6.1 Short description

The following adjustment media are available:

l Order code A - 4 … 20 mA/HART/outside/LCD: Adjustment via

local indication and 3 keys outside on the instrument

l Order code B - 4 … 20 mA/HART/inner/LCD: Adjustment via local

indication and 3 keys in the instrument

l Order code C - 4 … 20 mA/HART/inner/without: Adjustment with

local indication and 3 keys in the instrument

6.2 Local indication (optional)

As indication and adjustment, the 4-line liquid crystal indication (LCD) is used. The local indication shows measured values, dialogue texts as well as failure and information messages.

Functions:

32 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

32 4 5

–

6 Operati

l 8-digit

measured value indication incl. signs and decimal point,

indication of the units, bar graph for current indication

l Easy and complete menu-guidance through arrangement of the

parameters into several levels and groups

l To enable easy navigation, each parameter is marked with a 3-

digit identiﬁcation number

l Possibility to conﬁgure the indication according to the individual

requirements and requests, such as e.g. language, alternating indication, contrast setting, indication of other measured values, such as e.g. sensor temperature

l Comprehensive diagnostic functions (fault and warning message,

pointer etc.)

l Quick and reliable setup by means of quick setup menus

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Fig. 30: Functions 1 Adjustment keys 2 Measured value indication mode 3 Function name 4 Value 5 Parameter identiﬁcation number 6 Unit 7 Bar graph 8 Symbol 9 Header 10 Main line 11 Info line 12 Editing mode 13 Selection options 14 Editable value 15 Actual measured value

of the local indication

The following chart shows the possible symbols of the local indication. Four symbols can appear at once.

RT 33

6 Operati

Symbol Meaning

Alarm symbol

l Symbol ﬂashes: Warning, instrument continues measuring l Symbol ﬂashes permanently: Error, instrument does not

continue measuring

Note: Where appropriate, the alarm symbol superimposes the tendency symbol.

Lock

symbol

Adjustment of the instrument is locked Note: Unlock instrument, see "Lock/Unlock adjustment".

Communication

Data transmission via communication

Root

symbol

Active mode "Flow measurement" For the current output, the ﬂow signal extracted by root is used

Tendency

The measured value increases

Tendency

The measured value falls

Tendency

Within the last minutes, the measured value was constant

symbol

symbol (rising)

symbol (falling)

symbol (steady)

34 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

4 5

HW-Version: SW-Version:

250002271-–

HART

FIELDCO MMUNICATION PROTOCOL

1 2

off

6 Operati

Position of the adjustment elements

6.3 Adj

ustment elements

The adjustment keys are either outside on the housing below the protective cover or inside the electronics module. In addition there are adjustment keys on the optional local indication.

Fig. 38: Adjustment 1 Adjustment keys

elements outside on the housing below the protective cover

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Fig. 39: Adjustmetn 1 Adjustment keys 2 Module for optional indication 3 Module for optionally available memory module 4 DIP switch for locking/unlocking measured value-relevant parameters 5 DIP switch for damping on/oﬀ 6 Green LED for indication when the value is taken over

RT 35

keys inside

6 Operati

Function of the adjustment elements - local indication not connected

Function of the operating elements - local indication connected

tion:

Informa

To carry out the respective function, the key or key combination must be pushed for at least 3 seconds. For a reset, the key combination must be pushed for at least 6 seconds.

l "-" key

- Accept me asurement begin, refer

l "+" key

ence pressure is on

- Accept measurement end, reference pressure is on

l "E" key

- Position adjustment

l "+

" key and "-" key and "E" key

- Reset of all parameters. The reset via the keys corresponds to

the software rest code 7864.

l "+" key and "E" key

- Copy

l "-" key and "E" key

conﬁgurati

device.

- Copy conﬁgurati

module.

l DIP switch 1

on data from optional data memory module to

on data from device to optional data memory

- To lock/unlock measured value-relevant parameters. Default

setting: oﬀ (unlocked)

l DIP switch 2

- Damping

l "+" key

- Navigation upward in the selection list

on/oﬀ, def

ault setting: on (damping on)

- Editing of the numerical values or signs within a function

l "-" key

- Naviga

tion downward in the selection list

- Editing of the numerical values or signs within a function

l "E" key

- Conﬁrm entry

- Jump to the next menu item

l "+

" key and "E" key

- Contrast setting of the local display: highe

l "-" key and "E" key

- Contrast

setting of the local display: weak

31731-EN-081119

36 VEG

ADIF 55 • 4 … 20 mA/HART

6 Operati

" key and "-" key

l "+

- Quit editing mode without saving the modiﬁed value

- In the menu you are within a function group: when pushing the

keys for the ﬁrst time simultaneously, you jump one parameter back within the function group. With every further simultaneous pushing you jump one level in the menu to the top

- You

l DIP switch 1

are in the menu on a selection level: With simultaneous pushing you jump one level in the menu to the top

every

- To lock/unlock measured value-relevant parameters. Default

setting: oﬀ (unlocked)

l DIP switch 2

- Damping on/oﬀ, def

6.4 Local adjustment - local indication not

connected

Informa

tion:

For adjustment of the instrument with a data memory module see

"Data memory module".

ault setting: on (damping on)

Measuring Mode - Pressure

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

If no local indication is connected, the following functions will be

possible via the three keys on the electronics module or outside on the instrument:

l Position adjustment (zero point correction) l Set measurement begin and measurement end l Instrument reset, see chart in chapter "Operating elements"

tion:

Informa

The adjustment must be unlocked, see chapter "Lock/Unlock adjust- ment".

By default, the instrument is set to mode Pressure. The mode can be changed via the parameter "Measuring Mode", see chapter "Select

language and measuring mode".

The existing pressure must be within the nominal pressure limits of the sensor, see speciﬁcations on the "Type label".

Carry out position adjustment:

1 Pressure on the instrument 2 Push "E" key at least for 3 s 3 Does the LED on the electronics module light brieﬂy?

Yes: existing pressure was accepted as position adjustment No: Existing pressure for position adjustment was not accepted,

note the adjustment limits

Set LRV:

RT 37

6 Operati

Measuring Mode - Level

1 Pres

sure for LRV is on the instrument

2 Push "-" key at least for 3 s 3 Does the LED on the electronics module light brieﬂy?

Yes: existing pressure was accepted as LRV No: Existing pressure for LRV was not accepted, note the

adjustment limits

Set URV:

1 Pressure for URV is on the instrument 2 Push "+" key at least for 3 s 3 Does the LED on the electronics module light brieﬂy?

Yes: existing pressure was accepted as URV No: existing pressure for URV was not accepted, take note of the

adjustment limits

If no local indication is connected, the following functions will be possible via the three keys on the electronics module or outside on the instrument:

l Position adjustment (zero point correction) l Set the lower and upper pressure value and assign a level value to

the lower or upper level value

l Instrument reset, see chart in chapter "Operating elements"

Informa

tion:

The adjustment must be unlocked, see chapter "Lock/Unlock adjust- ment".

By default, the instrument is set to mode Pressure. The mode can be changed via the parameter "Measuring Mode", see chapter "Select

language and measuring mode".

If "Level Mode" "Pressure Linearized" or "Height Linearized" or "Calibration Mode" "dry" are selected, the "-" and "+" keys are without

function.

The existing pressure must be within the nominal pressure limits of the sensor, see speciﬁcations on the "Type label".

See also "Quick setup menu" in chapter "Level measurement"

l Default settings of the parameters in mode "Level":

- LEVEL MODE = Linear

- CALIBRATION MODE = wet

- LIN. MEASURAND = %

- EMPTY CALIB. = 0 %

- FULL CALIB. = 100 %

Carry out position adjustment:

1 Pressure on the instrument 2 Push "E" key at least for 3 s

31731-EN-081119

38 VEG

ADIF 55 • 4 … 20 mA/HART

6 Operati

Measuring Mode - Flow

3 Does

the LED on the electronics module light brieﬂy?

Yes: existing pressure was accepted as position adjustment No: Existing pressure for position adjustment was not accepted,

note the adjustment limits

Set lower pressure value:

1 Requested pressure for lower pressure value (EMPTY PRES-

SURE) is on the instrument

2 Push "-" key at least for 3 s 3 Does the LED on the electronics module light brieﬂy?

Yes: Existing pressure was saved as lower pressure value (EMPTY PRESSURE) and assigned to the lower level value (EMPTY CALIB.)

No: Existing pressure was not saved as lower pressure value (EMPTY PRESSURE). Take note of the adjustment limits

Set upper pressure value:

1 Requested pressure for upper pressure value (FULL PRESSURE)

is acting on the instrument

2 Push "+" key at least for 3 s 3 Does the LED on the electronics module light brieﬂy?

Yes: Existing pressure was saved as upper pressure value (FULL PRESSURE) and assigned to the upper level value (FULL CALIB.)

No: Existing pressure was not saved as upper pressure value (FULL PRESSURE). Note the adjustment limits.

If no local indication is connected, the following functions will be

possible via the three keys on the electronics module or outside on the instrument:

l Position adjustment (zero point correction) l Set the max. pressure value and assign it to the max. ﬂow value l Instrument reset, see chart in chapter "Operating elements"

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

tion:

Informa

The adjustment must be unlocked, see chapter "Lock/Unlock adjust- ment".

By default, the instrument is set to mode Pressure. The mode can be changed via the parameter "Measuring Mode", see chapter "Select

language and measuring mode".

The "-" key is without function

The existing pressure must be within the nominal pressure limits of the

sensor, see speciﬁcations on the "Type label".

See also "Quick setup menu" in chapter "Flow measurement".

Carry out position adjustment:

1 Pressure on the instrument

RT 39

6 Operati

h "E" key at least for 3 s

2 Pus 3 Does the LED on the electronics module light brieﬂy?

Yes: existing pressure was accepted as position adjustment No: Existing pressure for position adjustment was not accepted,

note the adjustment limits

Adjust max. pressure value:

1 Requested pressure for max. pressure value (MAX. PRESSURE

FLOW) is on the instrument

2 Push "+" key at least for 3 s 3 Does the LED on the electronics module light brieﬂy?

Yes: Existing pressure was saved as max. pressure value (MAX. PRESSURE FLOW) and assigned to the max. ﬂow value (MAX. FLOW).

No. Existing pressure for measurement begin was not saved as max. pressure value. Note the adjustment limits

6.5 Local adjustment - local indication connected

If the local indication is connected, the three adjustment key are used for navigation in the adjustment menu, see chapter "Function of the

operating elements".

Conﬁguration of the menu

40 VEG

The menu is divided into four levels. The three upper levels are used

for navigation whereas on the lowest level, numerical values are entered, options selected and saved. The complete menu is shown in chapter "Menu schematic". The "Adjustment menu" is composed according to the selected mode, e.g. when the mode "Pressure" is selected, only the functions necessary for this mode are displayed.

The parameters LANGUAGE and MODE are shown via the local indication on the 1. selection level. Via the digital communication, the parameter LANGUAGE is shown in group INDICATION and the parameter MODE in the function group BASIC ADJUSTMENT.

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

Measured value

GROUP SELCTION

DISPLAY

SETTINGS

EXTENDED SETUP

POS. ZERO ADJUST

POS INPUT VALUE

CALIB. OFFSET

POSITION ADJUSTMENT BASIC SETUP

OPERATING MENU

QUICK SETUP

MEASURING MODELANGUAGE

6 Operati

Fig. 40: Conﬁguration 1 1. Selection level 2 2. Selection level 3 Function groups 4 Parameter

Selec

t option

of the menu

Example: Select the menu language "English"

German is selected as language. The active selection is marked by a

check mark in front of the me nu text.

t English with "+" or "-".

Selec

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 41

6 Operati

Edit

value

1. Conﬁrm check mark in front of the menu text (the language English is selected).

2. Move to the next menu item with "E".

Exa

chapter "Operating elements".

The local adjustment shows the parameter to be modiﬁed. The value highlighted in black can be modiﬁed. The unit is determined "s" and cannot be modiﬁed.

1. Push "+ highlighted in black.

selection with "E". The active selection is marked by a

mple: Set function "Damping value" from 2.0 s to 30.0 s. See also

" or "-" to reach the editing mode. 2. The ﬁrst position is

the "+" key, you change number "2" to "3". 2. With the "E" key,

1. With you conﬁrm "3". Cursor jumps to t he next position (hihglighted in black).

42 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

6 Operati

e point is highlighted in black, i.e. you can now edit this position.

1. Push "+ Cursor jumps to the next position. "↵" is displayed and is highlighted in

black, see next illustration.

With "E" you illustration.

Th with "E". You return to the editing mode with "+" or "-".

" or "-" until "0" is displayed. 2. Conﬁrm "0" with the "E" key.

save the new value and quit the editing mode, see next

e new value for the damping is 30 s. You reach the next parameter

the pressure on the

Take instrument over as value

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

mple: Adjust measurement end - assign 20 mA to the pressure

Exa

value 400 mbar.

The lower line on the local indication shows the existing pressure, here 400 mbar.

RT 43

6 Operati

Move with "+" or "-" to the option "Conﬁrm". Active selection is highlighted in black.

Assi

gn value (400 mbar) to the parameter "GET URV" value (400 mbar) with the key "E". The instrument conﬁrms the adjustment and jumps back to the parameter, here "GET URV" (see next illustration).

Move to the next parameter with "E".

6.6 D

ata memory module (optional)

The data memory is a memory module that is plugged to the electronics module and fulﬁls the following functions:

l Backup of the conﬁguration data l Copy the conﬁguration data of a transmitter to another transmitter l Cyclical recording of pressure and sensor temperature measured

values

l Recording of various events such as e.g. alarm messages,

conﬁguration changes, counter for exceeding and decreasing of the measuring range for pressure and temperature, exceeding and decreasing of the user limits for pressure and temperature etc.

ning:

War

Warning! Remove or plug data memory only in idle condition from the electronics module.

tion:

Informa

The data memory module can be retroﬁtted any time. After having plugged to the electronics module and the instrument is powered again, the data in the data memory module and in the instrument are checked. The following messages can be displayed "W702, Histo-

ROM data not consistent" and "W706, Conﬁguration in HistoROM and device not identical". For measures see Additional instructions manual "Service instructions VEGADIF 55", "Messages".

44 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

Histo

ROM

2 1

Damping

[

] τ

off

Sensor

Display

6 Operati

Local indication not connected

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Fig. 54: Electronics 1 Optionally available data memory module 2 DIP switch

module with optionally available data memory module

6.7 Copy conﬁguration data

Informa

tion:

To copy conﬁguration data from the data memory module in an instrument, the adjustment must be unlocked.

Copy conﬁguration data from one instrument into a data memory module:

tion:

Informa

The adjustment must be unlocked. See also chapter "Lock/Unlock adjustment".

1 Separate instrument from voltage supply 2 Plug data memory module into the electronics module 3 Connect instrument again to voltage supply 4 Push "E" and "-" keys (at least 3 seconds) until the LED on the

electronics module lights

5 Wait approx. 20 seconds. Conﬁguration data are loaded from the

instrument to the data memory module. The instrument does not carry out a restart.

6 Separate instrument again from voltage supply 7 Remove memory module 8 Connect instrument again to voltage supply

RT 45

6 Operati

Local adjustment through local indication (optional) or remote adjustment

conﬁguration data from a data memory module to an

Copy instrument:

Information:

The adjustment must be unlocked. See also chapter "Lock/Unlock adjustment".

1 Separate instrument from voltage supply 2 Plug the data memory module into the electronics module.

Conﬁguration data of a diﬀerent instrument are saved in the data memory module.

3 Connect instrument again to voltage supply 4 Push "E" and "+" keys (at least 3 seconds) until the LED on the

electronics module lights

5 Wait approx. 20 seconds. All parameters except DEVICE SERIAL

NO., DEVICE DESIGN., CUST. TAG NUMBER, LONG TAG NUMBER, DESCRIPTION, BUS ADDRESS and the parameters of the group POSITION ADJUSTMENT and PROCESS CONNECTION are loaded from the data memory module in the instrument. The instrument carries out a restart.

6 Before you remove the data memory module from the electronics

module, you have to separate the instrument from the voltage supply

Copy conﬁguration data from one instrument into a data memory module:

tion:

Informa

The adjustment must be unlocked. See also chapter "Lock/Unlock adjustment".

1 Separate instrument from voltage supply 2 Plug data memory module into the electronics module 3 Connect instrument again to voltage supply 4 The selection for the parameter DOWNLOAD SELECT does not

inﬂuence an upload from the instrument in HistoROM (menu path:"Group sel ection - Operating menu - Operating"

5 Select via the parameter HistoROM CONTROL the option

"Instrument - HistoROM" for the transmission direction (menu path: "Group selection - Operating menu - Operating").

6 Wait approx. 20 seconds. Conﬁguration data are loaded from the

instrument to the data memory module. The instrument does not carry out a restart.

7 Separate instrument again from voltage supply 8 Remove memory module 9 Connect instrument again to voltage supply

Copy conﬁguration data from a data memory module to an instrument:

46 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

6 Operati

tion:

Informa

The adjustment must be unlocked. See also chapter "Lock/Unlock adjustment".

1 Separate instrument from voltage supply 2 Plug the data memory module into the electronics module.

Conﬁguration data of a diﬀerent instrument are saved in the data memory module.

3 Connect instrument again to voltage supply 4 You select via the parameter DOWNLOAD SELECT which

parameter should be overwritten (menu path: "Group selection - Operating menu - Operating")

Depending on the selection, the following parameters are overwritten:

Copy conﬁg.: All parameters except DEVICE SERIAL NO., DEVICE DESIGN., CUST. TAG NUMBER, LONG TAG NUMBER, DESCRIPTION, BUS ADDRESS and the parameters of group POSITION ADJUSTMENT and PROCESS CONNECTION.

Instrument change: All parameters except DEVICE SERIAL NO., DEVICE DESIGN. and the parameters of group POSITION ADJUSTMENT and PROCESS CONNECTION

Electronics exchange: All parameters except the parameters of group POSITION ADJUSTMENT. Factory setting: Copy conﬁg.

5 Select via the parameter HistoROM CONTROL the option

"HistoROM - Instrument" for the transmission direction (menu path: "Group selection - Operating menu - Operating").

6 Wait approx. 20 sec. Conﬁguration data are loaded from the data

memory module to the instrument. The instrument carries out a restart.

7 Before you remove the data memory module from the electronics

module, you have to separate the instrument from the voltage supply

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 47

EX EX

4…20 mA

min. 250 Ω

# % &

Copy

G H I

P Q R S

, ( )‘

A B C

Paste

Page

leteBksp

Insert

J K L

T UV

_ < >

D E

Hot Key

+ Hot Key

M N O

W XY Z

+ * /

375

FIELD COMMUNICATOR

DELTABAR:* * * * * * * * ONLINE

1 QUICK SETUP

2 OPE

RATING MENU

4 SV 0 °C

3 PV 352 mbar

HELP SAVE

dsdmdm df das. asdas fa asas la.

# % &

Copy

G H I

P Q R S

, ( )‘

A B C

Paste

Page On

Page Up

leteBksp

Insert

J K L

T UV

_ < >

D E

Hot Key

+ Hot Key

M N O

W XY Z

+ * /

375

FIELD COMMUNICATOR

DELTABAR:* * * * * * * * ONLINE

1 QUICK SETUP

2 OPE

RATING MENU

4 SV 0 °C

3 PV 352 mbar

HELP SAVE

dsdmdm df das. asdas fa asas la.

# % &

Copy

G H I

P Q R S

, ( )‘

A B C

Paste

Page On

Page Up

leteBksp

Insert

J K L

T UV

_ < >

D E

Hot Key

+ Hot Key

M N O

W XY Z

+ * /

375

FIELD COMMUNICATOR

DELTABAR:* * * * * * * * ONLINE

1 QUICK SETUP

2 OPE

RATING MENU

4 SV 0 °C

3 PV 352 mbar

HELP SAVE

dsdmdm df das. asdas fa asas la.

# % &

Copy

G H I

P Q R S

, ( )‘

A B C

Paste

Page On

Page Up

Del

eteBksp

Insert

J K L

T UV

_ < >

D E

Hot Key

+ Hot Key

M N O

W XY Z

+ * /

375

FIELD COMMUNICATOR

DELTABAR:* * * * * * * * ONLINE

1 QUICK SETUP

2 OP

ERATING MENU

4 SV 0 °C

3 PV 352 mbar

HELP SAVE

dsdmdm df das. asdas fa asas la.

# % &

Copy

G H I

P Q R S

, ( )‘

A B C

Paste

Page On

Page Up

Del

eteBksp

Insert

J K L

T UV

_ < >

D E

Hot Key

+ Hot Key

M N O

W XY Z

+ * /

375

FIELD COMMUNICATOR

DELTABAR:* * * * * * * * ONLINE

1 QUICK SETUP

2 OP

ERATING MENU

4 SV 0 °C

3 PV 352 mbar

HELP SAVE

dsdmdm df das. asdas fa asas la.

4...20mA

Test

6 Operati

6.8 Adj

ustment via HART handheld

You can adjust, check and use the additional functions of the transmitter with a HART handheld along the 4 … 20 mA cable.

Fig. 55: Connection HART handheld, here 1 Required communication resistor ≥ 250 Ω 2 HART handheld 3 HART handheld connected directly to the instrument, also in Ex i area

With

protection EExd, do not connect the handheld in hazardous areas.

e.g. Field Communicator DXR375

Do not change battery of the handheld in hazardous areas. For instruments with FM or CSA certiﬁcate, carry out the electrical connection according to the installation attached in the certiﬁcate.

6.9 Lock/Unlock adjustment

After entering all parameters, you can protect your settings against unauthorised access. You have the following possibilities to lock/ unlock the adjustment:

l via the DIP switch on the electronics module, on site on the

instrument

l via the local indication (optional) l Via a HART handheld

The locking of the adjustment is marked on the local indication with the key symbol. Parameters refering to the presentation such as e.g. language and contrast indication can be still modiﬁed.

Note:

the adjustment is locked via the DIP switch, the locking can be ony

If released via the DIP switch.

If the adjustment is locked via the local indication or remote

48 VEG

adjustment, the locking can be released either via the local indication or the remote adjustment.

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

Histo

ROM

2 1

Damping

[

] τ

off

Sensor

Display

of f

2 1

off

2 1

Damping

[

]

Damping

[

] τ

1 2 3

6 Operati

A modiﬁcati

on of the DIP switch "Damping on/oﬀ" does not inﬂuence the damping time as long as the adjustment is locked. A modiﬁcation is only eﬀective after the adjustment is unlocked again.

The chart gives an overview of the locking function:

Locking via Indication/Re-

ading of the parameters

DIP switch Yes No No Yes No No Local indica-

Yes No No No Yes No

tion

Remote adjust-

Yes No No No Yes No

ment

Modifying/Writing via local indication

Modifying/Writing via remote adjustment

Unlocking via DIP switch

Unlocking via

local indication

Unlocking via remote adjustment

Lock/Unlock adjustment on site via DIP switch

Fig. 56: Position DIP switch "Hardware 1 If necessary, dismount local indication (optional) 2 DIP switch 1 is set to "on": Adjustment is locked. 3 DIP switch 1 is set to "oﬀ": Adjustment is unlocked (adjustment possible)

locking" on the electronics module

Lock/Unlock adjustment via local indication or remote adjustment

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

The chart gives an overview of the locking/unlocking options:

Description

Lock adjustment Select parameter "Insert pin no.", menu path: "Operating

menu - Operating - Insert pin no.".

To lock the adjustment, you have to enter for the parameter a number between 0 … 9999 and ≠100.

Unlock adjustment

Select parameter "Insert pin no.", menu path: "Operating menu - Operating - Insert pin no.".

To unlock the adjustment, enter 100 for the parameter.

6.10 Default setting (reset)

By entering a certain code, you can reset the adjustments for the parameters completely or only partially to default. You enter the code via the parameter "ENTER RESET CODE" (menu path: " Group selection - Operating menu - Operation"). There are diﬀerent reset codes for the instrument. The following chart shows the parameters

RT 49

6 Operati

which can be reset by the respective reset code. T the adjustment must be unlocked (see chapter "Lock/Unlock adjust-

ment").

Information:

Customer-speciﬁc parameter adjustments (default) remain even after a reset. If you want that the parameters are reset to default, you have to contact VEGA.

Reset code Description

1846 Indication Reset

l This reset resets all parameters relating to the display (DISPLAY Group) l If a simulation is running, this will be terminated l The instrument carries out a restart

62 PowerUp reset (warm start)

l This reset resets all parameters in the RAM. Data are reread from the EEPROM (processor is

re-initialised)

l If a simulation is running, this will be terminated l The instrument carries out a restart

2710 Reset mode level

l Depending on the settings of the parameters LEVEL MODE and LIN MEASURAND, LINd

MEASURAND or COMB. MEASURAND all parameters necessary for this application are reset.

l If a simulation is running, this will be terminated l The instrument carries out a restart

333 User reset

This reset resets the following parameters:

l Function group POSITION ADJUSTMENT l Function group BASIC SETUP, except the customer-speciﬁc units l Function group EXT. SETUP l Function group: TOTALIZER SETUP l Group OUTPUT l Function group HART DATA: BUS ADDRESS and PREAMBLE NUMBER l If a simulation is running, this will be terminated l The instrument carries out a restart

o carry out a reset,

50 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

code Description

Reset

7864 Total reset

8888 Data memory module reset

This reset resets the following parameters:

l Function group POSITION ADJUSTMENT l Function group BASIC SETUP l Function group EXT. SETUP l Function group LINEARIZATION (an existing linearization chart may be deleted) l Function group: TOTALIZER SETUP l Group OUTPUT l Function group HART DATA l Function group MESSAGES l All messages to be conﬁgured (type "Error") are set to "Warning", see also Supplementary

instruction manual "Service instructions VEGADIF 55", "Messages" and chapter "Fault rectiﬁcation"

l Function group USER LIMITS l Function group SYSTEM 2 l If a simulation is running, this will be terminated l The instrument carries out a restart

Measured value and event memory will be deleted. The data memory module must be plugged to the electronics module during the reset.

Example LEVEL MODE = linear a nd LIN. MEASURAND = Height

l HEIGHT UNIT = m l CALIBRATION MODE = wet l EMPTY CALIB. = 0 l FULL CALIB. = Sensor ﬁnal value converted in H²O, e.g. with a

500 mbar sensor: 5.99 mH²O

6 Operati

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 51

B B BB

Continuation,

see the following page

Measured value

GROUP SELECTION

QUICK SETUP

LANGUAGE

Pressure

Level

Flo

POS. ZERO ADJUST

SET LRV

SET URV

FLOW

MAX PRESS. FLOW

EMPTY CALIB.

FULL CALIB.

POS. INPUT VALUE

CALIB. OFFSET

SET LRV

SET URV

GET LRV

DAMPING VALUE

GET URV

LEVEL MODE FLOW-MEAS. TYPE

CUSTOMER UNIT F

MAX. FLOW

CUST. UNIT FACT. F

MAX PRESS. FLOW

DAMPING VALUE

SETTINGS

OPERATING MENU

POSITION ADJUSTMENT BASIC SETUP

PRESS. ENG. UNIT

CUSTOMER UNIT P

CUST. UNIT FACT. P

Mass p. cond.

MASS FLOW UNIT

Gas norm cond.

Volume p. cond.

NORM FLOW UNIT

Gas std. cond.

STD. FLOW UNITUNIT FLOW

MEASURING MODE

Pressure

Leve

Flow

MEASURING MO

POS. ZERO ADJUST POS. ZERO ADJUST POS. ZERO ADJUST

DAMPING VALUE DAMPING VALUE

6 Operati

Fig. 57: Menu 1 Indication only via local indication 2 Indication only HART handheld

schematic part 1*: Group selection, basic setup, position adjustment, adjustment pressure and ﬂow

6.11 Menu

* There are parameters which are only displayed if other parameters are set respectively. For example, the parameter CUSTOMER UNIT P is only displayed, if the option "CUSTOMER UNIT" was selected for the parameter PRESS. ENG. UNIT. These parameters are marked with a "*".

schematic

31731-EN-081119

52 VEG

ADIF 55 • 4 … 20 mA/HART

F F F

D D D D

Continuation BASIC SETUP “Level”; see also the previous page

Level

LEVEL MODE

LIN. MEASURAND

CALIBRATION MODE

Linear

EMPTY CA

LIB.

EMPTY PRESSURE

FULL CALIB.

FULL PRESSURE

ADJUSTED DENSITY

wet

TANK VOLUME

TANK HEIGHT

HEIGHT UNIT

CUST. UNIT FACT. H

100% POINT

ZERO POSITION

ADJUST DENSITY

DENSITY UNIT

CUSTOMER UNIT H

dry

SET LRV

SET URV

DAMP

ING VALUE

Pressure Linearize

LINd MEASURAND

HYDR. PRESS MIN.

HYDR. PRESS MAX.

DAMPING VALUE

Height

HEIGHT UN

CUSTOMER UNIT H

CUST. UNIT FACT. H CUST. UNIT FACT. H CUST. UNIT FACT. H

Volume

UNIT VOLUME

CUSTOMER UNIT V

Mass

MASS UNIT

CUSTOMER UNIT M

MassVolume

UNIT V

OLUME

CUSTOMER UNIT V

CUST. UNIT FACT. V

MASS UNIT

CUSTOMER UNIT M

CUST. UNIT FACT. M

%Heigh

t+...Height+...

HEIGHT UNIT

CUSTOMER UNIT H

CUST. UNIT FACT. H

DENSITY UNIT

ADJUST DENSITY

HEIGHT UNIT

100% POINT

ZERO POSITION

CUSTOMER UNIT H

CUST. UNIT FACT. H

DAMPING VALUE

EMPTY CALIB.

FULL PRESSURE

EMPTY PRESSURE

FULL CALIB.

ADJUSTED DENSITY

Height Lin

earized

COMB. MEASURAND

LEVEL MIN

LEVEL MAX

CALIBRATION MODE

wet

dry

6 Operati

31731-EN-081119

Fig. 58: Menu

VEGADIF 55 • 4 … 20 mA/HA

schematic part 2*: Selection level mode, calib. level

* There are parameters which are only displayed if other parameters are set respectively. For example, the parameter CUSTOMER UNIT H is only displayed, if the option "CUSTOMER UNIT" was selected for the parameter HEIGHT UNIT. These parameters are marked with a

"*".

RT 53

Editor TABLE

Measuring Table

Display via HART handheld terminal only

Display via on-site display only

EXTENDED SETUP

Pressure

TEMP. ENG UNIT TEMP. ENG

UNIT TEMP. ENG UNIT

Level

ADJUST DENSITIY

PROCESS DENSITY

SET LRV

SET URV

Flow

LOW FLOW CUT-OFF

SET L. FL. CUT-OFF

SET LRV

SET URV

EDITOR TABLE

TANK CONTENT MIN

TANK CONTENT MAX

TABLE SELECTION

LIN. EDIT MODE MEASURING TABLE

TANK DESCRIPTION

TOTALIZER SETUP

RESET TOTALIZER 1

TOTALIZER 2 UNIT

TOTALIZER 1 UNIT

FACT. U. U. TOTAL. 1

NEG. FLOW TOT. 1

TOT. 2 USER UNIT

FACT. U. U. TOTAL. 2

NEG. FLOW TOT. 2

TOT. 1 USER UNIT

LINEARISATION

Level

measuri

mode only

Level measuring mode only

Flow measuring mode only

X-VAL.

Y-VA

LINE-NUMB

ACTIVE LIN. TAB. X

ACTIVE LIN. TAB Y

TANK DESCRIPTION

TAB. ACTIVATE

LINEARISATION

TANK CONTENT MIN

TANK CONTENT MAX

TABLE SELECTION

EDITOR TABLE

6 Operati

Fig. 59: Menu

schematic part 3*: Extended adjustment pressure, level and ﬂow, linearization, adjustment sum

counter

* There are parameters which are displayed only if other parameters are correspondingly set. For example, the parameter TOTALIZER 1 is only displayed, if the option "CUSTOMER UNIT" was selected for the parameter TOTALIZER. These parameters are marked with a "*".

54 VEG

ADIF 55 • 4 … 20 mA/HART

31731-EN-081119

OUTPUT

SET MAX. ALARM

SET MIN. CURRENT

OUTPUT CURRENT

OUTPUT FAIL MODE

ALT. CURR. OUTPUT

ASSIGN CURRENT

LINEAR/SQROOT

CURR. CHARACT.

TRANSMITTER INFO

HART DATA

MANUFACTOR ID

HART MESSAGE

BUS ADDRESS

DEVICE REVISION

PREAMBLE NUMBER

HART DATE

DEVICE TYPE

TRANSMITTER DATA

DEVICE SERIAL No

CUST. TAG NUMBER

ELECTR. SERIAL No

DEVICE DESIGN.

HARDWARE REF.

ADDITIONAL INFO.

SOFTWARE VERSION

CONFIG RECORDER

PCB TEMPERATURE

ALLOWED MIN. TEMP

ALLOWED MAX. TEMP

DIP STATUS

LONG TAG NUMBER

PROCESS CONNECTION

SEAL TYPE

Pmax PROC. CONN.

MAT. PROC. CONN. +

MAT. PROC. CONN. -

PROC. CONN. TYPE

SENSOR DATA

SENSOR MEAS. TYPE

Pmin SENS. DAMAGE

SENSOR SER. NO.

PRESS. SENS HILIM

MINIMUM SPAN

Pmax SENS. DAMAGE

MAT. MEMBRANE

PRESS. SENS LOLIM

FILLING FLUID

Tmin SENSOR

Tmax SENSOR

SENSOR H/WARE REV.

DISPLAYSAFETY CONFIRM.

ALTERNATE DATA

DISPLAY CONTRAST

MENU DESCRIPTOR

MAIN DATA FORMAT

SAFETY LOCK

SAFETY PASSWORD

CALIB. OFFSET

MEASURING MODE

CURRENT OUTPUT

DIGIT SETS

ACK. ALARM MODE

MAX. FLOW

MAX PRESS FLOW

LOW FLOW CUT-OFF

SET L. FLOW CUT-OFF

SET LRV

CONF. PASSWORD

SET URV

LINEAR/SQROOT

DAMPING VALUE

LANGUAGE]

DIAPHRAGM MAT. +

DIAPHRAGM MAT. -

NR OF REMOTE SEAL

FILL FLUID

MOUNTING THREAD

REMOTE SEAL +

REMOTE SEAL -

NUTS MATERIAL

DRAIN VENT MAT.

DRAIN VENT POS.

THREAD

BOLTS MATERIAL

4TH VALUE IS

4TH VALUE

SECONDARY VALUE

THIRD VALUE IS

THIRD VALUE

PRIMARY VALUE IS

PRIMARY VALUE

SECONDARY VAL. IS

DIGIT SETS

6 Operati

31731-EN-081119

Fig. 60: Menu 2 Indication only HART handheld 3 Only Measuring Mode - Level 4 Only Measuring Mode - Flow

schematic part 4*: Setting safety, indication and output, transmitter info

VEGADIF 55 • 4 … 20 mA/HA

RT 55

J J J J J J J

Display via HART handheld terminal only

MEASURED VALUE

SIM. CURRENT

Alarm Warning

none LevelPressure Tan

k content

Flow

Current

SIM. LEVEL

SIM. PRESSURE SIM.

TANK CONT.SIM. FLOW VALUE SIM. ERROR NO.

PROCESS VALUE

PROCESS INFO

Pressure

Lev

el Flow

PEAK HOLD INDICATOR

COUNTER:T > Tmax

COUNTER: T< Tmin

MIN. M

EAS TEMP.

COUNTER:P > Pmax

MAX. MEAS. PRESS.

COUNTER:P < Pmin

MIN. MEAS. PRESS.

PCB COUNT: T > Tmax

PCB MAX. TEMP.

PCB COUNT: T>Tmin

PCB MIN. TEMP.

RESET PEAKHOLD

OPERATION

ENTER RESET CODE

OPERATING HOURS

INSERT PIN NO

DIAGNOSTICS

SIMULATION

SIMULATION MODE

MESSAGES

RESET ALL ALARMS

SELECT ALARM TYPE

ALARM DELAY

ALARM DISPL. TIME

ALARM STATUS

LAST DIAG. CODE

ACK. ALARM MODE

ACK. ALARM

Pmin ALARM WINDOW

Pmax ALARM WINDOW

Tmin ALARM WINDOW

Tmax ALARM WNDOW

USER LIMITS

SENSOR TEMP.

MEAS. VAL. TREND

PRESSURE

CORRECTED PRESS.

SENSOR PRESSURE

LEVEL BEFORE LIN

TANK CONTENT

MEAS. VAL. TREND MEAS. VAL. TREND MEAS. VAL. TREND

PRESSURE

CORRECTED PRESS.

SENSOR PRESSURE

SENSOR TEMP.

PRESSURE

CORRECTED PRESS.

SENSOR PRESSURE

SENSOR TEMP.

TOTALIZER 2

SUPPRESSED FLOW

TOTALIZER 1

TOTAL. 1 OVERFLOW

TOTAL. 2 OVERFLOW

AL. 2 OVERFLOW

HistoROM AVAIL.

HistoROM CONTROL

ERROR NO.

MEASURED VALUE MEASURED VALUE

6 Operati

Fig. 61: Menu limits

schematic part 5*: Process info, peak hold indicator and operating data, simulation, messages, user

* There are parameters which are only displayed if other parameters were adjusted respectively. These parameters are marked with a "*".

56 VEG

ADIF 55 • 4 … 20 mA/HART

31731-EN-081119

7 Set

7.1 Warning instructions

Warning:

If there is pressure acting on the instrument that is less than the permissible min. pressure, the messages "E120 sensor low pressure" and "E727 pressure transmitter overdriven" are outputted.

If there is pressure acting on the instrument that is higher than the permissible max. pressure, the messages "E115 sensor gauge pressure" and "E727 pressure transmitter overdriven" are outputted.

Messages E727, E115 and E120 are message types "Error" and can be conﬁgured as "Warning" or "Alarm". As a default setting, these messages are set to "Warning". This setting avoids that in applications (e.g. cascade measurement) where overdriving of the sensor measuring range is consciously accepted, the current output takes on the set alarm current value.

In the following cases, we recommend setting the messages E727, E115 and E120 to "Alarm":

For the application, it is not necessary to overdrive the sensor range.

A position adjustment should be carried out which must correct a large

deviation of the measuring range due to the installation position of the instrument (e.g. instruments with isolating diaphragm).

7.2 Installation and function control

Before you set up the instrument, carry out the installation and connection control according to checklist.

l Checklist see chapter "Installation control" l Checklist see chapter "Connection control"

Local adjustment

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

7.3 Select language and measuring mode

The parameters LANGUAGE and MEASURING MODE are on the 1. selection level, see also chapter "Local adjustment - Local indication

connected".

The following languages are available:

l Deutsch l English l Français l Italiano l Español l Nederlands l Chinese (CHS) l Japanese (JPN)

RT 57

7 Set

HART handheld

e following modes are available:

l Pressure l Level l Flow

The parameter LANGUAGE is assigned in the HART handheld to the group DISPLAY (OPERATING MENU: "DISPLAY"). You select the menu language for the local indication via the parameter LANGUAGE.

The following languages are available:

l Deutsch l English l Français l Italiano l Español l Nederlands l Chinese (CHS) l Japanese (JPN)

The parameter MODE is displayed in the HART handheld in the QUICK SETUP menus and in the function group BASIC SETUP (OPERATING MENU: "SETTINGS" - "BASIC SETUP").

The following modes are available:

l Pressure l Level l Flow

7.4 Position correction

Due to the installation position of the instrument, the measured value can be shifted, i.e. the measured value does not show zero with empty vessel. Three diﬀerent possibilities for a position adjustment are oﬀered (menu path: ("GROUP SELECTION - OPERATING MENU -

SETTINGS - POSITION ADJUSTMENT").

Parameter name

Position correction (685)

Entry

58 VEG

Description

Input position adjustment - the pressure diﬀerence betwen zero (set value) and measured pressure must not be known (there is a reference pressure on the instrument).

Example:

l MEASURED VALUE = 2.2 mbar l You correct the MEASURED VALUE via the parameter

POS. ZERO ADJUST with the option "Conﬁrm", i.e. you assign the value 0 to the existing pressure

l MEASURED VALUE (after pos. zero adjust) = 0 mbar l The current value is also corrected l Default setting 0

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

7 Set

Parameter name

value (563)

Set Entry

Position oﬀset

(319)

Entry

Description

Input position adjustment - the pressure diﬀerence betwen zero (set value) and measured pressure must not be known (there is a reference pressure on the instrument).

Example:

l MEASURED VALUE = 0.5 mbar l For the parameter POS. INPUT VALUE you enter the

requested set value for the MEASURED VALUE, e.g.

2 mbar (valid: MEASURED VALUEnew = POS. INPUT VALUE)

l MEASURED VALUE (after pos. zero adjust) = 2 mbar l The parameter CALIB. OFFSET shows the resulting

pressure diﬀerence (oﬀset) by which the MEASURED VALUE was corrected. This applies: CALIB. OFFSET = MEASURED VALUEold - POSITION POS. INPUT VALUE, here: CALIB. OFFSET = 0.5 mbar -2 mbar =

-1.5 mbar)

l The current value is also corrected l Default setting 0

Input position adjustment - the pressure diﬀerence between zero (set value) and measured pressure is known (there is a reference pressure on the instrument).

Example:

l MEASURED VALUE = 2.2 mbar l Via the parameter CALIB. OFFSET you enter the value by

which the MEASURED VALUE should be corrected. To correct the MEASURED VALUE to 0 mbar, you have to enter the value 2.2 (valid: MEASURED VALUEnew = MEASURED VALUEold - CALIB. OFFSET)

l MEASURED VALUE (after adjustment for calib. oﬀset) =

0 mbar

l The current value is also corrected

Factory setting

l 0

Preparations

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

7.5 Flow measurement

Note:

ally, VEGADIF 55 is used in the basic version for ﬂow

Norm

measurements.

Before adjusting VEGADIF 55, you have to clean the eﬀective pressure lines and the instrument must be ﬁlled with the medium.

RT 59

–

IIIIII

7 Set

Fig. 62: Preferred I VEGADIF 55 II Three-fold valve block

2.4 Inlet valves 3 Breather valve

6.7 Vent valves on VEGADIF 55

A, B Block valves

60 VEG

Fig. 63: Preferred I VEGADIF 55 II Three-fold valve block III Precipitator

1.5 Drain valves

2.4 Inlet valves 3 Breather valve

6.7 Vent valves on VEGADIF 55

A, B Block valves

installation for gases

installation for liquids

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

7 Set

d as follows to prepare for the actual adjustment:

Procee

1 Close valve 3 2 Fill measuring system with medium

Open valves A, B, 2, 4: Medium ﬂows in

3 If necessary, clean the diﬀerential pressure lines: - with gases by

blowing out with compressed air - with liquids by rinsing.

For this purpose close valve 2 and 4, i.e. block the instrument. Then open valve 1 and 5 so that the eﬀective pressure lines blow

out/rinse.

After cleaning, close valves 1 and 5

4 Vent instrument

Open valves 2 and 4: Medium ﬂows in Close valve 4: Minus side will be closed Open valve 3: Equalisation plus and minus side Brieﬂy open valve 6 and 7, then close again: Fill the measuring

instrument completely with the medium and remove air

5 Carry out position adjustment if the following conditions apply. If

the conditions are not fulﬁlled, then carry out the position adjustment only after step 6. See "Quick Setup menu" in chapter "Flow measurement" and chapter "Position adjustment". Conditions:

- The process cannot be blocked.

- The pressure extraction positions (A and B) are at the same geodesic height.

6 Set measurement loop to operation

Therefore close valve 3: Separate plus and minus side Open valve 4: Connect minus side Now: Valves 1, 3, 5, 6 and 7 are closed

Valves 2 and 4 open Valves A and B open (if available)

7 Carry out position adjustment if the ﬂow must be blocked. In this

case, step 5 is deleted. See "Quick Setup menu" in chapter "Flow measurement" and chapter "Position adjustment".

8 Carry out adjustment, see "Informationen on ﬂow measurement" in

chapter "Flow measurement"

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Arrangement with 5 valves.

Valves 1, 3, 5: Conﬁguration with 5 valves.

RT 61

7 Set

Information on ﬂow measurement

Quick setup menu for mode ﬂow

mode "Flow", the instrument determines a volume or ﬂow value out

In of the measured diﬀerential pressure. The diﬀerential pressure is generated by means of eﬀective pressure transmitters such as e.g. impact pressure probes or oriﬁces and depends on the volume or ﬂow.

Four ﬂow modes are available; volume ﬂow, standard volume ﬂow (European standards), standard volume ﬂow (American standards) and ﬂow.

The VEGADIF 55 software is also equipped with two sum counters. The sum counters sum up the volume or ﬂow. For both sum counters,

the counting function and unit can be adjusted separately. The ﬁrst sum counter (sum counter 1) can be reset to zero at any time whereas the second (sum counter 2) sums up from the setup to the ﬂow and cannot be reset.

Informa

tion:

A Quick Setup menu is available for the modes pressure, level and

ﬂow leading you through the most important basic functions. With the setting in the parameter MEASURING MODE you determine which

Quick Setup menu is displayed, see also chapter "Select language and mode".

For ﬂow measurements you select via the parameter MEASURING MODE the option "Flow", see chapter "Menu schematic".

62 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

1) 1)

MAX FLOW

MAX

. PRESS. FLOW

DAMPING VALUE

POS. ZERO ADJUST

MEASURING MODE

OPERATING MENU

QUICK SETUP

Measured value

LANGUAGE

GROUP SELECTION

Flow

Press

ure

Level

MEASURING MODE

7 Set

1 Indication 2 Indication only via HART handheld

Local adjustment

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

only via local indication

Measured value indication: Move with "E" from the measured value presentation to the GROUP SELECTION.

GROUP SELECTION: Select parameter MEASURING MODE.

MEASURING MODE: Select option "Flow".

GROUP SELECTION: Select Quick SETUP menu.

POS. ZERO ADJUST: Due due the installation position of the

instrument, a shift of the measured value can be caused. Correct the MEASURED VALUE via the parameter POS. ZERO ADJUST with the

option "Accept", i.e. assign the value 0 to the existing pressure.

MAX. FLOW: Enter the max. ﬂow of the eﬀective pressure transmitter (see also construction sheet of the eﬀective pressure transmitter).

MAX. P RESSURE: Enter the max. pressure of the eﬀective pressure transmitter (see also construction sheet of the eﬀective pressure transmitter).

DAMPING VALUE: Enter the damping time (time constant τ). The damping inﬂuences the speed with which all following elements such as e.g. local indication, measured value and current output react to a pressure change. Enter the damping time (time constant τ).

RT 63

7 Set

HART handheld

Preparations

red value indication: Select Quick SETUP menu.

Measu

MEASURING MODE: Select option "Flow".

POS. ZERO ADJUST: Due due the installation position of the

instrument, a shift of the measured value can be caused. Correct the MEASURED VALUE via the parameter POS. ZERO ADJUST with the

option "Accept", i.e. assign the value 0 to the existing pressure.

MAX. FLOW: Enter the max. ﬂow of the eﬀective pressure transmitter (see also construction sheet of the eﬀective pressure transmitter).

MAX. P RESSURE: Enter the max. pressure of the eﬀective pressure transmitter (see also construction sheet of the eﬀective pressure transmitter).

7.6 Level measurement

Open vessel

VEGADIF 55 is used in all versions for level measurements.

Note:

VEGAD

IF 55 in ﬂange version: After opening a probably existing block

valve, the instrument is ready for operation.

Before you adjust VEGADIF 55 in basic version, you have to clean the eﬀective pressure lines and the instrument must be ﬁlled with the medium.

64 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

7 Set

Closed vessel

Fig. 65: Open I VEGADIF 55 II Precipitator

1 Drain valve

6.7 Vent valves on VEGADIF 55

A Block valve

vessel

Proceed as follows to prepare for the actual adjustment:

1 Fill the vessel to just over the lower tap. 2 Fill measuring system with medium.

Open valve A: Medium ﬂows in.

3 Vent instrument

Brieﬂy open valve 6, then close it: Fill the measuring instrument

completely with the medium and remove air.

4 Set measurement loop to operation

Now: Valve B and 6 are closed Valve A open

5 Carry out adjustment, see end of chapter "Level measurement"

VEGADIF 55 is used in all versions for level measurement in closed

vessels.

Note:

IF 55 in cell isolating diaphragm version is immediately ready

VEGAD

for operation.

VEGADIF 55 in ﬂange version: After opening a probably existing block valve, the instrument is ready for operation.

Before you adjust VEGADIF 55 in basic version, you have to clean the eﬀective pressure lines and the instrument must be ﬁlled with the medium.

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 65

–

IIIIII

7 Set

Fig. 66: Closed I VEGADIF 55 II Three-fold valve block III Precipitator

1, 5 Drain valves 2, 4 Inlet valves 6, 7 Vent valves on VEGADIF 55

A, B Block valves

vessel

Proceed as follows to prepare for the actual adjustment:

1 Fill the vessel to just above the lower tap 2 Fill measuring system with medium

Close valve 3: Separate plus and minus side Open valve A and B: Open block valves

3 Vent plus side (probably empty minus side)

Open valve 2 and 4: Discharge medium on the plus side Brieﬂy open valve 6 and 7, then close again: Fill the plus side

completely with the medium and remove air.

4 Set measurement loop to operation

Now: Valve 3, 6 and 7 are closed Valve 2, 4 A and B are open

66 VEG

5 Carry out adjustment, see end of chapter "Level measurement"

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ADIF 55 • 4 … 20 mA/HART

–

IIIIII

7 Set

Vessel with steam layering

VEGADIF 55 is

used in all versions for level measurement in closed

vessels.

Note:

VEGADIF 55 in cell isolating diaphragm version is immediately ready for operation.

VEGADIF 55 in ﬂange version: After opening a probably existing block valve, the instrument is ready for operation.

Before you adjust VEGADIF 55 in basic version, you have to clean the eﬀective pressure lines and the instrument must be ﬁlled with the medium.

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Fig. 67: Closed I VEGADIF 55 II Three-fold valve block III Precipitator

1, 5 Drain valves 2, 4 Inlet valves 3 Breather valve 6, 7 Vent valves on VEGADIF 55

A, B Block valves

vessel with steam layer

Proceed as follows to prepare the actual adjustment:

1 Fill the vessel to just above the lower tap 2 Fill measuring system with medium

RT 67

Open valve A and B: Open block valves

7 Set

Information on level measurement

the minus eﬀective pressure line on the height of the

Fill condensation pot

3 Vent instrument

Open valve 2 and 4: Discharge medium Open valve 3: Equalisation plus and minus side Brieﬂy open valve 6 and 7, then close again: Fill the measuring

instrument completely with the medium and remove air

4 Set measurement loop to operation

Close valve 3: Separate plus and minus side Open valve 4: Connect minus side Now: Valve 3, 6 and 7 are closed Valve 2, 4 A and B are open.

5 Carry out adjustment, see end of chapter "Level measurement"

A quick setup menu is available for the modes ﬂow, level and

pressure, leading you through the most important basic functions.

For level measurement, the three level modes are also available "Level Easy Pressure", "Level Easy Height" and "Level Standard". For the

level mode "Level Standard" you can choose between the level types "Linear", "Pressure linearized" and "Height linearized". The chart in the

following chapter "Overview level measurement" gives an overview of the diﬀerent applications.

With the level modes "Level Easy Pressure" and "Level Easy Height" the entered vaues are subjected to a lower scope of tests than with the level mode "Level Standard". For the level modes "Level Easy Pressure" and "Level Easy Height" a min. distance of 1 % must be maintained for the entered values for EMPTY CALIB./FULL CALIB.,

EMPTY PRESSURE/FULL PRESSURE, EMPTY HEIGHT/FULL HEIGHT and SET LRV/SET URV. If the values are too close together,

the values will be denied with a message. Further limit values are not checked, i.e. the entered parameters must ﬁt the sensor and application so that the measuring instrument can carry out a correct measurement.

The level modes "Level Easy Pressure" and "Level Easy Height" comprise less parameters than the mode "Level Standard" and is used for quick and easy parameter adjustment of a level application.

Customer-speciﬁc level, volume and measuring units or a linearisation chart can be only entered with level mode "Level Standard".

If the instrument should be used as part system in a safety function (SIL), an "Instrument parameter adjustment with increased parameter adjustment reliability" (group SAFETY CONFIRM) for mode "Level" is only possible for the mode "Level Easy Pressure". After adjustment of a password, all previously entered parameters are checked. If the mode "Level Easy Height" or "Level Easy Pressure" was selected

31731-EN-081119

68 VEG

ADIF 55 • 4 … 20 mA/HART

7 Set

Overview level measurement

Measuring problem

The parameter is directly proportional to the measured pressure. The adjustment is carried out by entering two pressure value pairs.

The parameter is directly proportional to the measured pressure. The adjustment is carried out by entering the density

LEVEL SELECTION/LEVEL MODE

LEVEL SELECTION: Level Easy Pressure

SELECTION LEVEL: Level Easy Height

once, the

parameter adjustment must be reset ﬁrst of all via the parameter ENTER RESET CODE with rest code "7864" (menu path: (GROUP SELECTION - OPERATING MENU - OPERATING) to default setting.

The following chart gives an overview of the diﬀerent application on the level measurement sector.

Selection of the measured value

Via the parameter OUTPUT UNIT: Percent, level

height, volume or mass units.

Via the parameter OUTPUT UNIT: Percent, level

height, volume or mass units.

Description Note Measured value

l Adjustment

with reference pressure - Wet adjustment, see operating instructions manual VEGA-

DIF 55

l Adjustment

without reference pressure

- Dry adjustment, see operating instructions manual

VEGADIF 55

l Adjustment

with reference pressure - Wet adjustment, see operating instructions manual VEGA-

DIF 55

l Adjustment

without reference pressure

- Dry adjustment, see operating instructions manual

VEGADIF 55

l Faulty inser-

tions are possible

l SIL mode pos-

sible

l Customer-spe-

ciﬁc units are not possible

l Faulty inser-

tions are possible

l SIL mode not

possible

l Customer-spe-

ciﬁc units are not possible

indication

The measured value indication as well as the parameter LEVEL

BEFORE LIN.

show the measured value.

The measured value indication as well as the parameter LEVEL

BEFORE LIN.

show the measured value.

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RT 69

7 Set

Measuring lem

The parameter is directly proportional to the measured pressure.

The parameter is not directly proportional to the measured pressure, such as e.g. in vessels with conical outlet. A linearization chart must be entered for adjustment.

prob-

LEVEL SELECTION/LEVEL MODE

LEVEL SELECTION: Level Standard/LEVEL MODE: Linear

LEVEL SELECTION: Level Standard/LEVEL MODE: Pressure

linearized

Selection of the measured value

Via the parameter LIN. MEASURAND: - Percent (Level) - Level Volume - Mass

Via the parameter LINd MEASURAND: - Pressure

+ Percent - Pres- sure + Volume Pressure + Mass

Description Note Measured value

l Adjustment

with reference pressure - Wet adjustment, see operating instructions manual VEGA-

DIF 55

l Adjustment

without reference pressure

- Dry adjustment, see operating instructions manual

VEGADIF 55

l Adjustment

with reference pressure: Semiautomatic input of the linearization chart, see operating instructions manual

VEGADIF 55

l Adjustment

without reference pressure: Manual input of the linearization chart, see operating instructions manual VEGA-

DIF 55

l Faulty inser-

tions are denied by the instrument

l SIL mode not

possible

l Customer-spe-

ciﬁc level, volume and measuring units are possible

l Faulty inser-

tions are denied by the instrument

l SIL mode not

possible

l Customer-spe-

ciﬁc level, volume and measuring units are possible

indication

The measured value indication as well as the parameter LEVEL

BEFORE LIN.

show the measured value.

The measured value display as well as the parameter TANK CONTENT show the measured value.

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ADIF 55 • 4 … 20 mA/HART

Measuring lem

l Two parame-

l The vessel

The 1. parameter percentage height or height must be directly proportional to the measured pressure. The 2. parameter volume, mass or percent must not be directly proportional to the measured pressure. A linearization chart must be entered for the 2. parameter. Via this chart, the 2. parameter is assigned to the 1. parameter.

prob-

ters are required or

form is given by value pairs such as e.g. height and volume

LEVEL SELECTION/LEVEL MODE

LEVEL SELECTION: Level Standard/LEVEL MODE: Height

linearized

Selection of the measured value

Via the parameter COMB. MEASURAND: - Height

+ Volume - Height + Mass - Height +

Percent - Percentage height + Volume - Percentage height + Mass - Percentage height + Percent

7 Set

Description Note Measured value

l Adjustment

with reference pressure: Wet adjustment and semiautomatic input of the linearization chart, see operating instructions manual VEGA-

DIF 55

l Adjustment

without reference pressure: Dry adjustment and manual input of the linearization chart, see operating instructions manual

VEGADIF 55

l Faulty inser-

tions are denied by the instrument

l SIL mode not

possible

l Customer-spe-

ciﬁc level, volume and measuring units are possible

indication

The measured value indication as well as the parameter TANK CONTENT show the 2. measured value (volume, mass or percent).

The parameter LEVEL BEFORE LIN. shows the 1.

measured value (percent height or height).

Quick setup menu for mode level measurement

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

tion:

Informa

l Some parameters are only displayed if other parameters are set

appropriately. For exmaple, if the parameter EMPTY CALIB. is only displayed in the following cases:

- LEVEL SELECTION "Level Easy Pressure" and CALIBRATION MODE "Wet"

- LEVEL SELECTION "Level Standard", LEVEL MODE "Linear" and CALIBRATION MODE "Wet"

- The parameters LEVEL MODE and CALIBRATION MODE are in function group BASIC SETUP (menu path: GROUP

SELECTION - OPERATING MENU - CALIBRATION - BASIC SETUP).

l As a default setting, the following parameters are set to the

following values:

- LEVEL SELECTION: Level Easy Pressure

- CALIBRATION MODE: Wet

- OUTPUT UNIT or LIN. MEASURAND: %

- EMPTY CALIB.: 0

- FULL CALIB.: 100

RT 71

1) 1)

LEVEL SELECTION

FULL CALIB.

EMPTY CALIB.

DAMPING VALUE

POS. ZERO ADJUST

MEASURING MODE OPERATING MENU

QUICK SETUP

Measured value

LANGUAGE

Flow

Press

ure

Level

MEASURING M

ODE

GROUP SELECTION

7 Set

- SET

LRV (group BASIC SETUP): 0 (corresponds to 4 mA

value)

- SET URV (group BASIC SETUP): 100 (corresponds to 20 mA value)

l The Quick Setup is suitable for easy and quick setup. If you want

to carry out more complex settings, such as e.g. changing the units from "Percent" in "Meter", the adjustment must be carried out via the group BASIC SETUP, see operating instructions manual VEGADIF 55 or chapter "Overview documentation".

1 Indication 2 Indication only via HART handheld 3 LEVEL SELECTION "Level Easy Pressure" and CALIBRATION MODE "Wet"; LEVEL SELECTION = "Level

Standard", LEVEL MODE = "Linear" and CALIBRATION MODE "Wet"

Local adjustment

only via local indication

Measured value indication: Move with F from the measured value presentation to the GROUP SELECTION.

GROUP SELECTION: Select parameter MEASURING MODE.

MEASURING MODE: Select option "Level".

Level selection: Select level mode.

GROUP SELECTION: Select Quick SETUP menu.

72 VEG

ADIF 55 • 4 … 20 mA/HART

31731-EN-081119

7 Set

HART handheld

POS. ZER

instrument, a shift of the measured value can be caused. Correct the MEASURED VALUE via the parameter POS. ZERO ADJUST with the

option "Accept", i.e. assign the value 0 to the existing pressure.

EMPTY CALIB.: Enter the level value for the lower adjustment point. For this parameter, you enter a level value assigned to the pressure

acting on the instrument. Enter level value for the lower adjustment point. Prerequisites: Level selection "Level Easy Pressure", Calibration mode "wet"; Level selection "Level Standard", Level mode "linear" and Calibration mode "wet"

FULL CALIB.: Enter the level value for the upper adjustment point. For this parameter, you enter a level value assigned to the pressure acting on the instrument. Enter level value for the upper adjustment point. Prerequisites: Level selection "Level Easy Pressure", Calibration mode "wet"; Level selection "Level Standard", Level mode "linear" and Calibration mode "wet"

Measured value indication: Select Quick SETUP menu

MEASURING MODE: Select option "Level".

Level selection: Select level mode.

POS. ZERO ADJUST: Due due the installation position of the

instrument, a shift of the measured value can be caused. Correct the MEASURED VALUE via the parameter POS. ZERO ADJUST with the

option "Accept", i.e. assign the value 0 to the existing pressure.

EMPTY CALIB.: Enter the level value for the lower adjustment point. For this parameter, you enter a level value assigned to the pressure

O ADJUST: Due due the installation position of the

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Note:

For

local adjustment see also "Operating elements".

RT 73

–

7 Set

iﬀerential pressure measurement

7.7 D

Preparations

VEGADIF 55 is used in all versions for diﬀerential pressure measurements.

Note:

The VEGADIF 55 with cell isolating diaphragms and capillary lines is immediately ready for adjustment.

Before you adjust VEGADIF 55 in basic version, you have to clean the eﬀective pressure lines and the instrument must be ﬁlled with the medium.

Fig. 69: Preferred I VEGADIF 55 II Three-fold valve block

2, 4 Inlet valves 3 Breather valve 6, 7 Vent valves on VEGADIF 55

A, B Block valves

installation for gases

74 VEG

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ADIF 55 • 4 … 20 mA/HART

–

IIIIII

7 Set

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

Fig. 70: Preferred I VEGADIF 55 II Three-fold valve block III Precipitator

1.5 Drain valves

2.4 Inlet valves

3 Breather valve 6, 7 Vent valves on VEGADIF 55

A, B Block valves

installation for liquids

Proceed as follows to prepare for the actual adjustment:

1 Close valve 3 2 Fill measuring system with medium.

Open valves A, B, 2, 4: Medium ﬂows in.

Note:

necessary, clean the diﬀerential pressure lines: - with gases by

If blowing out with compressed air - with liquids by rinsing.

l Close valve 2 and 4, block the instrument l Open valve 1 and 5 l Close valve 1 and 5

3 Vent instrument

Open valves 2 and 4: Medium ﬂows in Close valve 4: Minus side will be closed Open valve 3: Equalisation plus and minus side Brieﬂy open valve 6 and 7, then close again: Fill the measuring

instrument completely with the medium and remove air

Arrangement with 5 valves.

RT 75

1) 1)

SET LRV

SET URV

DAMPING V

ALUE

POS. ZERO ADJUST

MEASURING MODE

OPERATING MENU

QUICK SETUP

Measured value

LANGUAGE

GRO

UP SELECTION

PRE

SSURE

LEVEL

MEASURING MODE

FLOW

7 Set

Information on diﬀerential pressure m easurement

measurement loop to operation

4 Set

Therefore close valve 3: Separate plus and minus side Open valve 4: Connect minus side Now: Valves 1, 3, 5, 6 and 7 are closed

Valves 2 and 4 open Valves A and B open (if available)

5 Carry out adjustment, see below

Informa

tion:

A Quick Setup menu is available for the modes pressure, level and

ﬂow leading you through the most important basic functions. With the setting in the parameter MEASURING MODE you determine which

Quick Setup menu is displayed, see also chapter "Select language and mode".

Quick setup menu for mode diﬀerential pressure

1 Indication 2 Indication only via HART handheld

only via local indication

Local adjustment

For diﬀerential pressure measurements you select via the parameter MODE the option "Pressure". The adjustment menu composes

correspondingly,see also "Menu schematic".

Measured value indication: Move with "E" from the measured value presentation to the GROUP SELECTION.

GROUP SELECTION: Select parameter MEASURING MODE.

Valves 1, 3, 5: Conﬁguration with 5 valves.

31731-EN-081119

76 VEG

ADIF 55 • 4 … 20 mA/HART

7 Set

HART handheld

MEASURING MODE: Select

GROUP SELECTION: Select QUICK SETUP menu.

POS. ZERO ADJUST: Due due the installation position of the

instrument, a shift of the measured value can be caused. Correct the MEASURED VALUE via the parameter POS. ZERO ADJUST with the

option "Accept", i.e. assign the value 0 to the existing pressure.

SET LRV: Set measuring range (enter 4 mA value). Enter pressure value for the lower current value (4 mA value). A reference pressure on the instrument is not necessary. Set measuring range (enter 4 mA value).

SET URV: Set measuring range (enter 20 mA value). Enter pressure value for the upper current value (20 mA value). A reference pressure on the instrument is not necessary. Set measuring range (enter 20 mA value).

Measured value indication: Select Quick SETUP menu.

MEASURING MODE: Select option "Pressure".

POS. ZERO ADJUST: Due due the installation position of the

instrument, a shift of the measured value can be caused. Correct the MEASURED VALUE via the parameter POS. ZERO ADJUST with the

option "Accept", i.e. assign the value 0 to the existing pressure.

option "Pressure".

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 77

aintenance and fault rectiﬁcation

8 M

Reaction when malfunctions occur

Causes of malfunction

Fault rectiﬁcation

24 hour service hotline

8 Maint

enance and fault rectiﬁcation

8.1 Maintenance

When used in the correct way, no special maintenance is required in normal operation.

Outside cleaning

When cleaning the instrument, take note of the following:

l The cleaning agent must not corrode the surfaces and seals l Mechanical damage to the diaphragm, e.g. by sharp objects, must

be avoided

8.2 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 measure to be taken is to check the output signal. In many cases, the causes can be determined this way and the faults rectiﬁed.

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.

Behaviour of the outputs

Reaction after fault rec-

tiﬁcation

The behaviour of the outputs as well as error messages via the local indication are available in the supplementary instructions "Service

instructions for VEGADIF 55".

Depending on the failure reason and measures taken, the steps described in chapter "Set up" must be carried out again, if necessary.

8.3 Replacement parts

Information to the replacement parts is available in the supplementary instructions manual "Service instructions for VEGADIF 55".

78 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

aintenance and fault rectiﬁcation

8 M

8.4 Instru

Information about the repair of the instrument is available in the supplementary instructions manual "Service instructions for VEGADIF

55".

ment repair

31731-EN-081119

VEGADIF 55 • 4 … 20 mA/HA

RT 79

9 Dismoun

ting

9 Dismou

nting

9.1 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.

9.2 Disposal

The instrument consists of materials which can be recycled by specialised recycling companies. We use recyclable materials and have designed the electronics modules 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 (in Germany, e. g. ElektroG). 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 "Technical data" in the product information manual "VEGADIF 55".

If you have no possibility to dispose of the old instrument professionally, please contact us concerning return and disposal.

80 VEG

31731-EN-081119

ADIF 55 • 4 … 20 mA/HART

10 Sup

plement

10 Supplem

ent

10.1 Technical data and dimensions

You ﬁnd technical data and dimensions in the product information manual "VEGADIF 55".

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VEGADIF 55 • 4 … 20 mA/HA

RT 81

10 Suppl

ement

82 VEG

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ADIF 55 • 4 … 20 mA/HART

10 Sup

plement

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VEGADIF 55 • 4 … 20 mA/HA

RT 83

VEGA Grieshaber 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.

Subject to change without prior notice 31731-EN-081119

VEGA DIF55 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1.1 Function

1.2 Target group

1.3 Symbolism used

2.1 Authorised personnel

2.2 Appropriate use

2.3 Warning about misuse

2.4 General safety instructions

2.6 Safety approval markings and safety tips

2.7 CE conformity

2.8 Safety instructions for Ex areas

2.9 Environmental instructions

3.2 Principle of operation

3.3 Operation

3.4 Packaging, transport and storage

4.1 General instructions

4.9 Mounting control

5.1 Preparing the connection

5.3 Wiring plan

5.5 Load

5.6 Connection control

5.7 Switch on phase

6.1 Short description

6.2 Local indication (optional)

6.9 Lock/Unlock adjustment

6.10 Default setting (reset)

7.1 Warning instructions

7.2 Installation and function control

7.3 Select language and measuring mode

7.4 Position correction

7.5 Flow measurement

7.6 Level measurement

8.1 Maintenance

8.2 Remove interferences

8.3 Replacement parts

9.1 Dismounting steps

9.2 Disposal

10.1 Technical data and dimensions