protrac service training - 2010-10-18 en

8/4/2019 PROTRAC Service Training - 2010-10-18 En

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Radiation-based process

instrumentation

Field service training 18. October 2010


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Agenda

Why nucleonic measurement?

The nucleonic measuring principle

Typical industries and markets

Application examples

Don't be afraid of gamma radiation

PROTRAC: typically VEGA

plics the idea with a future

Configuration and parameter adjustment

Source container shipping

Page 2 August 31, 2011 Roland Bonath

Radiation-based process instrumentation


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Reliable measurement technology for extreme process condition

Why nucleonic measurement?

Suitable for extreme conditions

Measuring principle works without

contact to process medium

High reliability of the measuring

principle

Some application areas still allowno other alternative to nucleonic

measurement




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A familiar measuring principle

The principle is based on theradiation emitted by radioactive

isotopes

Isotopes are mounted into a source

holder

The radiation is damped when

penetrating material

A detector mounted to the tank

receives the radiation and converts

it into an electrical signal

The detector calculates the level,

density or concentration of themeasured product from the

received (attenuated) radiation

The nucleonic measuring principle




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Application areas

Level switching (1)

Continuous level (2)

Density and concentration

as well as flow measurement

of liquids (3)

Interface measurement (4)

Nucleonic measurement technology

1

2

4

3




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Typical industries and markets

Special application areas

Chemical industry

Petrochemical industry

Metal processing

Oil and gas

Pulp and paper

Energy productionAggregates and mining

Cement industry




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Flue gas desulfurization

Emission protection through fluegas desulfurization in coal power

stations

Lime milk suspension binds sulphur

dioxide

Concentration measurement of the

lime milk by means of density

measurement

Lime milk is very abrasive

Application example density




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Flue gas desulfurization

Emission protection through fluegas desulfurization in coal power

stations

Lime milk suspension binds sulphur

dioxide

Concentration measurement of the

lime milk by means of density

measurement

Lime milk is very abrasive

Application example density




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Cellulose production

In cellulose production, wood chipsare broken down chemically with

the help of a cooking liquor

In a special reactor, the cooking

liquor is regenerated so that it can

be used again

Temperature 160 C, pressure

10 bar

Aggressive process conditions

The maximum level in the reactor

must be monitored

Application example point level




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Cellulose production

In cellulose production, wood chipsare broken down chemically with

the help of a cooking liquor

In a special reactor, the cooking

liquor is regenerated so that it can

be used again

Temperature 160 C, pressure

10 bar

Aggressive process conditions

The maximum level in the reactor

must be monitored

Application example point level




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Polyester melt reactor

Its almost impossible to imagineour lives without polyester

This versatile plastic is created in a

polyester melt reactor

Process temperature 220 C

The vessel is enclosed in a heatingjacket

Rotation of the container

Nucleonic measurement has

proven itself worldwide in this

application

Application example level




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Polyester melt reactor

Its almost impossible to imagineour lives without polyester

This versatile plastic is created in a

polyester melt reactor

Process temperature 220 C

The vessel is enclosed in a heatingjacket

Rotation of the container

Nucleonic measurement has

proven itself worldwide in this

application

Application example level




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Measurement in cyclones in cement

applicationsIn the lower part of the cyclone,

buildup often occurs which results

in blockage

To avoid downtimes, the cyclone

must be monitored for buildup and

possible clogging

Compressed air can prevent

clogging, however, over a longer

period can damage the refractory

lining

The thickness of the buildup mustbe monitored, to activate removal

with compressed air, if necessary

Application examples point switch

Page 13 31 August 2011 Roland Bonath



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Measurement in cyclones in cement

applicationsIn the lower part of the cyclone,

buildup often occurs which results

in blockage

To avoid downtimes, the cyclone

must be monitored for buildup and

possible clogging

Compressed air can prevent

clogging, however, over a longer

period can damage the refractory

lining

The thickness of the buildup mustbe monitored, to activate removal

with compressed air, if necessary

Application examples point switch




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Highest sensitivity

Detectors of the PROTRAC seriesare extremely sensitive

Conventional Geiger-Mueller

counters do not even respond here

Remarkable measuring precision

and quick response times

Advantage

Reduction of source activity

Don't be afraid of gamma radiation




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A high degree of safety

Integrated safety functions

Self monitoring and diagnosis

Asset Management System

Developed acc. to IEC 61508

Qualified up to SIL2

NEWVEGA is the first supplier to offer

level, point level and density

instruments with SIL

PROTRAC: typically VEGA!




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Simpler is better

plics makes everything simpler

From selection to ordering to setup

The modular system can be exactly

adapted to the measuring task

plics allows unrestricted selection

and combination of sensors,process fitting, electronics and

housings

Advantage:

Simple planning, short delivery time,

uncomplicated connection, fast setup

and commissioning

plics The idea with a future




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plics Electronics



Anzeige- und Bedienmodul

4 20 mA

HART

Profibus

PA

Foundation

Fieldbus

FeaturesRelay output

Analogue and digital inputs

Serial multi-gauge communication bus

Qualified up to SIL2

Simple electronics exchange


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plics Housing



Stainless steelAluminium


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plics Indicating and adjustment module



VEGACONNECTPLICSCOM


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One module for all plics

instrumentsSimple adjustment via four

compact membrane keys

Measured value indication with unit

Clear text with graphical elements

Lighting (optional)Device information

Diagnostics messages





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Display

Measured value indication with unitPlain text with graphic elements

Multilingual menu

Lighting

Simple navigation

Clear menu structures

Tree structures

Unambiguous terms

PLICSCOM Easy and informative




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plics Sensor system



PVT

scintillator

Flexible

plastic

scintillator

NaI crystal

NEW


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Source container VEGASOURCE




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Design of the source container VEGASOURCE

Page 25 31 August 2011 Roland BonathRadiation-based process instrumentation

Benchmarking data

Small space requirement andsimple mounting

Safe and easy source

replacement

Padlock for fixing the function

settings

Pneumatic switch-ON /

switch-OFF

Collimation angle 5, 20 and 40

Fire-proof version

821C / 30 min. (according ISO

7205, IEC 60405, AERB/SS/2,ANS N538)


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Benchmarking data



replacement


settings


switch-OFF


Fire-proof version


7205, IEC 60405, AERB/SS/2,ANS N538)


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Benchmarking data



replacement


settings


switch-OFF


Fire-proof version


7205, IEC 60405, AERB/SS/2,ANS N538)


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Engineering design

Model A (Standard)

Figure: VEGASOURCE 35 Figure: VEGASOURCE 31


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Benchmarking data

Weight with manual ON/OFF:SE31 app. 40 kg

SE35 app. 87 kg

Weight with pneumatic ON/OFF:

SE31 app. 50 kg

SE35 app. 97 kg

Max. Cs-137 loading:

SE31: 600 mCi /22,2 GBq

SE35: 3.000 mCi / 111 GBq

Max. Co-60 loading:

SE31: 20 mCi / 740 MBq

SE35: 100 mCi / 3,7 GBq

Montingflange:

DN100 PN16

Ambient temperature:

-40 C ... +200 C


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Equivalent dose

The equivalent dose defines theenergy dose taken in by the body

through ionising radiation

Measurement unit for the dose

rate is the microsievert/hour

(Sv/h)

The sievert (Sv) unit is a measure

of the biological effects of

radiation

The largest exposure results from

a medical x-ray examination

The dose rate a radiation sourcegenerates depends on the activity

and the distance

8,848 m

1.0

Mount

Everest

2,962 m

0.1

Zugspitze

0 m

0.01Venice

Dose rate in Sv/h

12,500 m

5.0A

ltitude

Scintillation

detector1.0


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Mounting instructions



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Mounting position for cont. level

The source container must bemounted at the height of, or

slightly above, the max. level

The radiation must be aligned

exactly with the detector

The source container and

detector should be mounted as

close as possible to the vessel to

avoid control zones

An gap between source container

and vessel must be blocked off

and marked.

In general two or more source

containers are used for large

measuring ranges


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detector should be mounted asclose as possible to the vessel to

avoid control zones



and marked.



measuring ranges


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detector should be mounted asclose as possible to the vessel to

avoid control zones



and marked.



measuring ranges


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Mounting position for point level

The source container version withan collimation angle = 5 is

recommended for point level

If larger collimation angle

(20 or 40) are used, ensure that

the ray is horizontal

For this purpose, mount theradiation source container in such

a way that the eyelet is

positioned horizontally.


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Mounting position for density

The most constant conditions fordensity measurement in pipes

are achieved if the unit is

mounted on vertical pipes

If only horizontal pipes are

accessible, the path of the ray

should also be arrangedhorizontally to reduce the

influence of air bubbles and

build-up.

In order to achieve a longer path

of the radiation through the

medium and thus a largermeasuring effect


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Pipe mounting bracket KV31


Figure: Pipe mounting bracket KV31 - vertical detector mounting


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Figure: Pipe mounting bracket KV31 - horizontal detector mounting


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Figure: 30 pipe mounting bracket KV31with diagonal beam


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Mounting accessoires


Figure: L-bracket PTB3 for FIBERTRAC and MINITRAC


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Setup / Adjustment



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Communication with all systems

Standard communication protocolsare available for adjustment and

connection in process automation

4 20 mA /HART

Profibus PA and

Foundation Fieldbus

All settings can be made with oneadjustment software (DTM or EDD)

Simple setup is also possible via

the indicating and adjustment unit

PLICSCOM

PLS/SPS

VEGAMET

DTM EDD

AMS/

PDM

EDD


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Service and diagnosis Asset Management


Asset management functions

Standardized status messages acc.to NE 107 or VDI/VDE 2650

Detailed diagnosis in the

instrument with cleartext display

Digital transmission via HART,

Profibus and Foundation Fieldbus

Preventive maintenance

Early recognition of malfunctions

Diagnosis evaluation with

PACTware 4.0

Simplified servicing

Failure

Maintenance

Function control

Out of specification


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Background calibration

The background calibration isnecessary in order to register the

natural background radiation

The pulse rate of this background

radiation is automatically

subtracted from any other

measured pulse rate



80


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Full calibration

The radiation is switched onMost of the Gammaphotones will

be blocked by the liquid

The pulse rate is low

Background pulse rate of the

background radiation is

automatically subtracted



185


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Empty calibration

The radiation is switched onWithin the measuring range, the

vessel is emptied as far as possible

Ideally: 0%, maximum 40%

Background pulse rate of the

background radiation is

automatically subtracted

3891


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Measuring mode

The amount of pulse rate dependson the filling level

An low number of pulses means an

high filling level of the vessel

The measured pulse rate is inverse

proportional to the filling level

An detailed relation between filling

level and pulse rates is defined by

the Linearization curve

1941


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Density measurement

For density and concentrationmeasurements the MINITRAC

needs the two parameters:

The absorption coefficient of the

measured material

The reference pulse rate Io

For many applications an one-pointcalibration is sufficient

This calibration point should be

located as near as possible to the

operating point

If high accuracy is required over

the complete measuring range twoor more calibration points should

be applied.

899

DTM

sample 1

sample 1


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Density measurement

The calibration points for anmultiple point calibration should be

located as far from each other as

possible

The calibration points should be

uniformly distributed over the

measuring range

1491

DTM

sample 2

sample 2


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Density measurement

After the calibration points havebeen entered, the MINITRAC

automatically calculates the

linearization curve

For recalibration (e.g. buildups in

the pipe) the parameterreal value

correction can usedThe absorption coefficient is

kept unchanged from the original

calibration

I = 10 * e - * roh * d

1491

sample 2

sample 1


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DTM Device Type Manager

Device DTMDriver for field devices and

Remote I/O

Communication DTM

Driver for communication protocols

such as Profibus, Foundation

FieldbusProvides all instrument-specific

data and functions

Runs in different frame applications

such as PACTware, ABB, etc.


Page 51 August 31, 2011 Roland BonathRadiation-based process instrumentation

LIVE

Demo


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Electrical connection

Two connection chambers areavailable

Depending on the instrument

version the signal output is either in

the primary or in the secondary

chamber



Secondary terminal connections

Primary terminal connections


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1. Power supply

2. Power supply

3. 4 20 mA active output

(only explosion protected devices)

4. 4 20 mA passive output

(only explosion protected devices)

5. 4 20 mA input

6. Switching input open collector

7. Switching input relay contact

8. Switching output (NPN transistor

9. Multisensor communication bus

10. 2x address switches for MGC


1. 4 20 mA output option (IS safe devices)

2. PLICSCOM connection

3. Connections for external indication (VEGADIS)

4. Ground connection






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Density calibration example

Density calibrationOne point calibration

Min. process value: 1,5 kg/m

Max. process value: 3,0 kg/m

Pipe diameter 200 mm

Pulse rate for density 3,0 kg/m:

1000 ct/s

Pulse rate for density 1,0 kg/m:

3000 ct/s

Lesson:Setup the gauge

Build an linearization curve




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Source loading

Eckert & Ziegler load theVEGASOURCE container

Eckert & Ziegler labels the type

plate

Eckert & Ziegler ship the source

container direct to the end user




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1. Serial number VEGASOURCE container2. Order code3. Document ID4. Radiation angle5. Local dose rate at a defined distance from the surface

6. Wording "Hochradioaktive Strahlenquelle"(highly radioactive source), depending on activity

7. Isotope (Cs-137 orCo-60)8. Serial number of the source capsule9. Source activity in Bq and mCi10. Manufacturing date of the source capsule


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Editorial

Field service training radiation-based process instrumentation

Version: EN 18 October 2010

VEGA Grieshaber KG

Am Hohenstein 11377761 Schiltach

Germany

Phone +49 7836 50-0

Fax +49 7836 50-201

E-mail [email protected]

www.vega.com

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