Vega Solitrac 31 User manual

Quick setup guide

Radiometric sensor for continuous level

and interface measurement

SOLITRAC 31

Four-wire 4 … 20 mA/HART

With SIL qualication

Document ID: 62085

Contents

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

Contents

1 For your safety ......................................................................................................................... 3

1.1 Authorised personnel ....................................................................................................... 3

1.2 Appropriate use................................................................................................................ 3

1.3 Warning about incorrect use............................................................................................. 3

1.4 General safety instructions............................................................................................... 3

1.5 EU conformity................................................................................................................... 3

1.6 NAMUR recommendations .............................................................................................. 4

1.7 Installation and operation in the USA and Canada ........................................................... 4

1.8 Environmental instructions ............................................................................................... 4

2 Product description ................................................................................................................. 5

2.1 Conguration.................................................................................................................... 5

2.2 Principle of operation........................................................................................................ 6

2.3 System limitations ............................................................................................................ 6

2.4 Corresponding source container...................................................................................... 7

3 Mounting................................................................................................................................... 9

3.1 General instructions ......................................................................................................... 9

3.2 Mounting instructions ..................................................................................................... 10

4 Connecting to power supply................................................................................................. 14

4.1 Preparing the connection ............................................................................................... 14

4.2 Connection - Level measurement................................................................................... 16

4.3 Connection - Level detection.......................................................................................... 18

4.4 Connection - Summation................................................................................................ 20

5 Functional safety (SIL) .......................................................................................................... 22

5.1 Objective........................................................................................................................ 22

5.2 SILqualication.............................................................................................................. 22

5.3 Application area ............................................................................................................. 22

5.4 Safety concept of the parameterization .......................................................................... 23

6 Set up with the display and adjustment module ................................................................ 25

6.1 Insert display and adjustment module............................................................................ 25

6.2 Parameter adjustment - Summation Secondary............................................................. 25

7 Supplement ............................................................................................................................ 27

7.1 Technical data ................................................................................................................ 27

Information:

This quick setup guide enables quick setup and commissioning of

your instrument.

Youcanndsupplementaryinformationinthecorresponding,more

detailed Operating Instructions Manual as well as the Safety Manual

thatcomeswithinstrumentswithSILqualication.Thesemanualsare

available on our homepage.

Operating instructions SOLITRAC 31, four-wire 4 … 20 mA/

HART, with SIL qualication: Document-ID 43387

Editing status of the quick setup guide: 2021-11-25

1 For your safety

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

1 For your safety

1.1 Authorised personnel

All operations described in this documentation must be carried out

onlybytrained,qualiedpersonnelauthorisedbytheplantoperator.

Duringworkonandwiththedevice,therequiredpersonalprotective

equipment must always be worn.

1.2 Appropriate use

SOLITRAC 31 is a sensor for continuous level measurement.

Youcannddetailedinformationabouttheareaofapplicationin

chapter " Product description".

Operational reliability is ensured only if the instrument is properly

usedaccordingtothespecicationsintheoperatinginstructions

manual as well as possible supplementary instructions.

1.3 Warning about incorrect use

Inappropriate or incorrect use of this product can give rise to applica-

tion-specichazards,e.g.vesseloverllthroughincorrectmounting

or adjustment. Damage to property and persons or environmental

contaminationcanresult.Also,theprotectivecharacteristicsofthe

instrument can be impaired.

1.4 General safety instructions

This is a state-of-the-art instrument complying with IEC 61508 and

all prevailing regulations and directives. The instrument must only be

operatedinatechnicallyawlessandreliablecondition.Theoperator

is responsible for the trouble-free operation of the instrument.When

measuring aggressive or corrosive media that can cause a dangerous

situationiftheinstrumentmalfunctions,theoperatorhastoimplement

suitable measures to make sure the instrument is functioning properly.

Thesafetyinstructionsinthisoperatinginstructionsmanual,thecor-

respondingSafetyManual,thenationalinstallationstandardsaswell

as the valid safety regulations and accident prevention rules must be

observed by the user.

Forsafetyandwarrantyreasons,anyinvasiveworkonthedevice

beyond that described in the operating instructions manual may be

carried out only by personnel authorised by the manufacturer. Arbi-

traryconversionsormodicationsareexplicitlyforbidden.Forsafety

reasons,onlytheaccessoryspeciedbythemanufacturermustbe

used.

Toavoidanydanger,thesafetyapprovalmarkingsandsafetytipson

the device must also be observed.

1.5 EU conformity

ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-

tives.ByaxingtheCEmarking,weconrmtheconformityofthe

instrument with these directives.

1 For your safety

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

The EU conformity declaration can be found on our homepage.

Electromagnetic compatibility

Instrumentsinfour-wireorEx-d-iaversionaredesignedforuseinan

industrialenvironment.Nevertheless,electromagneticinterference

from electrical conductors and radiated emissions must be taken into

account,asisusualwithclassAinstrumentsaccordingtoEN61326-

1.Iftheinstrumentisusedinadierentenvironment,theelectromag-

netic compatibility to other instruments must be ensured by suitable

measures.

1.6 NAMUR recommendations

NAMUR is the automation technology user association in the process

industry in Germany. The published NAMUR recommendations are

acceptedasthestandardineldinstrumentation.

ThedevicefullstherequirementsofthefollowingNAMURrecom-

mendations:

• NE 21 – Electromagnetic compatibility of equipment

• NE 43 – Signal level for fault information from measuring transduc-

ers

• NE53–Compatibilityofelddevicesanddisplay/adjustment

components

• NE107–Self-monitoringanddiagnosisofelddevices

For further information see www.namur.de.

1.7 Installation and operation in the USA and

Canada

This information is only valid for USA and Canada. Hence the follow-

ingtextisonlyavailableintheEnglishlanguage.

Installations in the US shall comply with the relevant requirements of

the National Electrical Code (ANSI/NFPA 70).

Installations in Canada shall comply with the relevant requirements of

the Canadian Electrical Code.

1.8 Environmental instructions

Protection of the environment is one of our most important duties.

That is why we have introduced an environment management system

with the goal of continuously improving company environmental pro-

tection.Theenvironmentmanagementsystemiscertiedaccording

to DIN EN ISO 14001.

Pleasehelpusfullthisobligationbyobservingtheenvironmental

instructions in this manual:

• Chapter " Packaging, transport and storage"

• Chapter " Disposal"

2 Product description

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

2 Product description

2.1 Conguration

Thetypelabelcontainsthemostimportantdataforidenticationand

use of the instrument:

Fig. 1: Layout of the type label (example)

1 Instrument type

2 Product code

3 Electronics

4 Protection rating

5 Ambient temperature

6 Measuring range

7 Hardware and software version

8 Order number

9 Serial number of the instrument

10 ID numbers, instrument documentation

11 SILidentication

The type label contains the serial number of the instrument. With it

youcanndthefollowinginstrumentdataonourhomepage:

• Product code (HTML)

• Delivery date (HTML)

• Order-specicinstrumentfeatures(HTML)

• Operating instructions and quick setup guide at the time of ship-

ment (PDF)

• Testcerticate(PDF)-optional

Move to " www.vega.com"andenterinthesearcheldtheserial

number of your instrument.

Alternatively,youcanaccessthedataviayoursmartphone:

• Download the VEGA Tools app from the " Apple App Store" or the

" Google Play Store"

• Scan the QR-code on the type label of the device or

• Enter the serial number manually in the app

Type label

Serial number - Instru-

ment search

2 Product description

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

2.2 Principle of operation

The instrument is suitable for applications in liquids and bulk solids in

vesselsunderdicultprocessconditions.Thereareapplicationpos-

sibilities in nearly all areas of industry.

The level is detected contactlessly right through the vessel wall.

Neitheraprocessttingnoravesselopeningarerequired.Theinstru-

ment is thus ideal for retro installation.

Inradiometricmeasurement,aCaesium-137orCobalt-60isotope

emits focussed gamma rays that are attenuated when penetrating

the vessel wall and the medium. The PVT detector on the opposite

sideofthetankreceivestheradiation,whosestrengthisdependent

on the level. The measuring principle has proven to be very reliable

inconjunctionwithextremeprocessconditionsbecauseitmeasures

contactlessly from outside through the vessel wall.The measuring

systemensuresmaximumsafety,reliabilityandplantavailability,

independently of the medium and its properties.

2.3 System limitations

Thereareseveralmeasuringprinciple-specicfactorswhichcaninu-

ence the measuring result. Keep these factors in mind in order to fully

utilize the capabilities of the instrument with respect to measurement

reliability and non-repeadability.

The implemented radioactive isotope and its activity must be selected

according to the properties of the vessel and the medium.The neces-

sary radioactive activity must be calculated on the basis of the plant

data.

Tothisend,makeuseofourplanningserviceforanoptimumlayoutof

the measurement and selection of the isotope.This applies particu-

larly to SIL applications.

Duetothephysicalpropertiesoftheradioactiveradiation,thepulse

rateissubjecttoslightuctuations.Setasuitabledampingleveltoget

a stable measured value.

The relation between level and the pulse rate measured by the sensor

is not linear.

Set up a linearization table to get a linear level signal. For precise

mesurementresults,makesurewhensettingupthelinearization

tablethattheactualllingheightofthemeasuringpointsisenteredas

exactlyaspossible.

Externalradiationsourcescaninuencethemeasuredvalue(e.g.

weldingjointtests).Insafety-relevantapplications,thesafetyfunction

mustbetreatedasunreliableaslongastheexternalradiationoccurs.

Ifnecessary,youmusttakemeasurestomaintainthesafetyfunction.

Makesureduringtheplanningthatfortheplannedapplication,a

possiblylargedierentofthepulseratewithemptyandfullvesselis

Application area

Functional principle

Activity of the source

Non-linearity of the pro-

cess value

External radiation

Span

2 Product description

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

reaced.This applies mainly for products with low density or in vessels

withextremelysmalldiameter.

2.4 Corresponding source container

A radioactive isotope in a suitable source holder is the prerequisite for

a radiometric measurement setup.

The handling of radioactive substances is regulated by law. The radia-

tion protection rules of the country in which the system is operated

applyrstandforemost.

InGermany,forexample,thecurrentradiationprotectionordinance

(StrlSchV) based on the Atomic Energy Law (AtG) applies.

The following points are important for measurement with radiometric

methods:

A handling permit is required for operation of a system using gamma

rays.Thispermitisissuedbytherespectivegovernmentoceorthe

responsibleauthority(inGermany,forexample,ocesforenviron-

mentalprotection,tradesupervisoryboards,etc.)

Youcanndfurtherinstructionsintheoperatinginstructionsmanual

of the source container.

Whenhandlingradioactivesources,unnecessaryradiationexposure

mustbeavoided.Anunavoidableradiationexposuremustbekeptas

low as possible.Take note of the following three important measures:

1 2 3

Fig. 2: Measures for protection against radioactive radiation

1 Shielding

2 Time

3 Distance

Shielding: Provide good shielding between the source and your-

self as well as all other persons. Special source containers (e.g.

VEGASOURCE)aswellasallmaterialswithhighdensity(e.g.lead,

iron,concrete,etc.)provideeectiveshielding.

Time:Stayasshortatimeaspossibleinradiationexposedareas.

Distance:Your distance to the source should be as large as possible.

The local dose rate of the radiation decreases in proportion to the

square of the distance to the radiation source.

Theplantoperatormustappointaradiationsafetyocerwiththe

necessaryexpertknowledge.Heisresponsibleforensuringthatthe

Handling permit

General instructions for

radiation protection

Radiation safety ocer

2 Product description

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

radiation protection ordinance is complied with and for implementing

all radiation protection measures.

Controlareasareareasinwhichthelocaldoserateexceedsacertain

value.Onlypersonswhoundergoocialdosemonitoringareallowed

intothesecontrolareas.Youcanndtherespectivelyvalidlimitvalues

for control areas in the guideline of the respective authority (in Ger-

many,forexample,theradiationprotectionordinance).

We are at your disposal for further information concerning radiation

protection and regulations in other countries.

Control area

3 Mounting

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

3 Mounting

3.1 General instructions

The source container is part of the measuring system. In case the

sourcecontainerisalreadyequippedwithanactiveisotope,the

source container must be locked before mounting.

Danger:

Before mounting; make sure that the source is securely closed. Use

a padlock to secure the source container in the closed condition and

prevent it from being inadvertently opened.

Protect your instrument against moisture ingress through the following

measures:

• Use a suitable connection cable (see chapter " Connecting to

power supply")

• Tighten the cable gland or plug connector

• Lead the connection cable downward in front of the cable entry or

plug connector

Thisappliesmainlytooutdoorinstallations,inareaswherehigh

humidityisexpected(e.g.throughcleaningprocesses)andoncooled

or heated vessels.

Note:

Make sure that during installation or maintenance no moisture or dirt

can get inside the instrument.

Tomaintainthehousingprotection,makesurethatthehousinglidis

closedduringoperationandlocked,ifnecessary.

Note:

Forsafetyreasons,theinstrumentmustonlybeoperatedwithinthe

permissibleprocessconditions.Youcannddetailedinformationon

the process conditions in chapter " Technical data" of the operating

instructions or on the type label.

Hencemakesurebeforemountingthatallpartsoftheinstrumentex-

posedtotheprocessaresuitablefortheexistingprocessconditions.

These are mainly:

• Active measuring component

• Processtting

• Process seal

Process conditions in particular are:

• Process pressure

• Process temperature

• Chemical properties of the medium

• Abrasionandmechanicalinuences

Switch o source

Protection against mois-

ture

Process conditions

3 Mounting

SOLITRAC 31 • Four-wire 4 … 20 mA/HART

62085-EN-211203

Metric threads

Inthecaseofinstrumenthousingswithmetricthread,thecable

glands are screwed in at the factory. They are sealed with plastic

plugs as transport protection.

You have to remove these plugs before electrical connection.

NPT thread

Inthecaseofinstrumenthousingswithself-sealingNPTthreads,itis

not possible to have the cable entries screwed in at the factory.The

free openings for the cable glands are therefore covered with red dust

protection caps as transport protection.

Prior to setup you have to replace these protective caps with ap-

proved cable glands or close the openings with suitable blind plugs.

The suitable cable glands and blind plugs come with the instrument.

3.2 Mounting instructions

Note:

Duringtheplanning,ourspecialistswillanalysetheconditionsofthe

measurement loop to dimension the isotope accordingly.

You get a "Source Sizing" document specifying the required source

activity and containing all relevant mounting information for your

measuring point.

You must follow the instructions in this "Source Sizing" document in

addition to the following mounting instructions.

The following mounting information is applicable as long as there is

nothingelsespeciedinthe"SourceSizing"document.

Fig. 3: Level measurement in a storage tank

Cable glands

Installation position

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