Vega SHLD1 User manual

Quick setup guide
SHLD1
Source holder
Document ID: 62092

2
Contents
SHLD1 • Source holder
62092-EN-190704
Contents
1 For your safety ......................................................................................................................... 3
1.1 Authorised personnel ....................................................................................................... 3
1.2 Appropriate use................................................................................................................ 4
1.3 Warning about incorrect use............................................................................................. 4
1.4 General safety instructions............................................................................................... 4
1.5 Application reference ....................................................................................................... 5
1.6 Installation and operation in the USA and Canada ........................................................... 5
1.7 Safety instructions for Ex areas ........................................................................................ 6
1.8 Environmental instructions ............................................................................................... 6
2 Product description ................................................................................................................. 7
2.1 Conguration.................................................................................................................... 7
2.2 Principle of operation...................................................................................................... 10
3 Mounting................................................................................................................................. 13
3.1 General instructions ....................................................................................................... 13
3.2 Mounting instructions ..................................................................................................... 14
4 Setup ....................................................................................................................................... 21
4.1 Operation of SHLD1....................................................................................................... 21
5 Maintenanceandfaultrectication...................................................................................... 24
5.1 Cleaning......................................................................................................................... 24
5.2 Maintenance .................................................................................................................. 24
5.3 Test of the switching mechanism.................................................................................... 25
5.4 Tightness test................................................................................................................. 25
5.5 Rectify faults................................................................................................................... 27
5.6 What to do in case of emergency ................................................................................... 27
6 Supplement ............................................................................................................................ 29
6.1 Technical data ................................................................................................................ 29
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 SHLD1: Document-ID 52899
Editing status of the quick setup guide: 2019-07-02

3
1 For your safety
SHLD1 • Source holder
62092-EN-190704
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.
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 the current radiation protection ordinance (StrlSchV)
based on the Atomic Energy Law (AtG) is applicable.
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 state government or
theresponsibleauthority(ocesforenvironmentalprotection,trade
supervisoryboards,etc.)
We would be pleased to assist you in applying for the permit.
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. 1: Measures for protection against radioactive radiation
1 Shielding
2 Time
3 Distance
Shielding: Provide good shielding between the source and yourself
as well as all other persons. Special source containers 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.
Handling permit
General instructions for
radiation protection

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1 For your safety
SHLD1 • Source holder
62092-EN-190704
Theplantoperatormustappointaradiationsafetyocerwiththe
necessary expert knowledge. He is responsible for ensuring that the
radiation protection ordinance is complied with and for implementing
all radiation protection measures.
Weoerappropriatetrainingthatimpartsthenecessaryqualication
inthiseld.
Youcanalsondcertiedcourseprovidersonthehomepageofthe
FederalOceforRadiationProtection:www.bfs.de.
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 radiation protection ordinance.
We are at your disposal for further information concerning radiation
protection and regulations in other countries.
1.2 Appropriate use
Wheninoperatingmode,thesourcecontainerSHLD1described
inthisdocumentcontainsaradiactivesourceforradiometriclevel,
interface,switchinganddensitymeasurement.Thesourcecontainer
shieldstheradiationofromthesurroundingsandonlyallowsitto
exit,practicallyunhindered,inthedirectionofmeasurement.
Toensuretheshieldingeectandexcludedamagetotheradioactive
source,allinstructionsinthisoperatinginstructionsmanualandthe
legal radiation protection regulations must be observed during instal-
lation and operation.
Operational reliability is ensured only if the instrument is used prop-
erly. We are not liable for damages caused by improper use.
Youcannddetailedinformationabouttheareaofapplicationin
chapter "Product description".
1.3 Warning about incorrect use
Inappropriate or incorrect use of this instrument can give rise to
hazards,e.g.risktopersonsthroughexposuretogammaradiation.
Damage to property and persons or environmental contamination can
result.Also,theprotectivecharacteristicsoftheinstrumentcanbe
impaired.
Take note of the respective safety instructions.
1.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives. The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble 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.
Duringtheentiredurationofuse,theuserisobligedtodeterminethe
compliance of the necessary occupational safety measures with the
Radiationsafetyocer
Control area

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1 For your safety
SHLD1 • Source holder
62092-EN-190704
current valid rules and regulations and also take note of new regula-
tions.
Thesafetyinstructionsinthisoperatinginstructionsmanual,thena-
tional 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 and their meaning read in this oper-
ating instructions manual.
1.5 Application reference
• Take note of the applicable regulations and national/international
standards.
• Takenoteoftheradiationprotectionordinancewhenusing,storing
and working with the radiometric measuring system.
• Take note of the warning instructions and safety zones.
• Install and operate the instrument according to the documentation
andtherespectiveocialregulations.
• The instrument must not be operated and stored outside the
speciedparameters.
• Protecttheinstrumentagainstextremeinuences(e.g.chemi-
calproducts,weather,mechanicalshock,vibration,etc.)during
operationandstorage.Especiallywhenloadedwithasource,the
instrument may not be destroyed for any reason (e.g. for scrap-
ping).
• Always secure the switch position OFF with a lock.
• Beforeswitchingontheradiation,makesurethatnopersonsare
in the radiation area (also not outside the vessel). The radiation
must only be switched on by trained personnel.
• Do not use a corroded or damaged instrument. Inform the respon-
sibleradiationsafetyocerassoonasdamageorcorrosion
appears and follow his instructions.
• Carry out the necessary tightness test according to the applicable
rules and instructions.
• If there are doubts about the proper condition of the measuring
system,checkifthereisradiationintheenvironmentoftheinstru-
mentandinformtheresponsibleradiationsafetyocer.
1.6 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).

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1 For your safety
SHLD1 • Source holder
62092-EN-190704
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.
1.7 Safety instructions for Ex areas
Instrumentswithapprovalscanhavedierenttechnicaldatade-
pendingontheversion.Withtheseinstruments,thecorresponding
approval documents must be observed. These documents are part of
the scope of delivery or can be downloaded from "www.vega.com",
"Instrument search (serial number)" as well as via "Downloads" and
"Approvals".
The suitability of the radiometric measuring principle as well as of the
instrument for use in hazardous areas must be checked by the opera-
tor by consulting the applicable national regulations.
Note the following instructions:
Static charge: Avoid electrostatic charges on the instrument. Never
rub dry.
Potential equalization: The instrument must be integrated in the
potential equalization of the system. To ensure a good electrical
contactbetweenthesourcecontainerandthemountingbracket,lock
washers must be used.
Pneumatic switching facility: With pneumatically actuated source
containers: For use in hazardous areas of category ATEX II 2G the
corresponding safety instructions must be noted.
Corrosion: The pneumatic actuation must not be used under ambient
conditions that can cause corrosion in and on the pneumatic actuator.
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"

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2 Product description
SHLD1 • Source holder
62092-EN-190704
2 Product description
2.1 Conguration
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
• Order code
• Serial number
• Source holder
• Source contained
• Activity
• Local dose rate
• Article number - Documentation
• Note: "Highly radioactive source" (if necessary)
The serial number allows you to access the delivery data of the instru-
ment via "www.vega.com","VEGA Tools" and "Instrument search".
Note:
Thelocaldoseratestatedonthetypelabelatadeneddistanceis
safety-orientedandincludesproduction-relateductuationsofthe
emitters as well as tolerances of the measuring instruments. There
can thus be deviations in the local dose rate calculated with the speci-
edattenuationfactors.Seealso"Principle of operation/Source".
Thereareseveralversionsavailablewithdierentoptions.Apart
fromthemanualversions,therearealsoversionswithpneumatic
switchover.
Type label
Versions

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2 Product description
SHLD1 • Source holder
62092-EN-190704
ABC
DEF
Fig. 2: Versions SHLD1 (Overview)
Version A: Standard version
Version B: with position switch
Version C: with Interlock safety switch
Version D: Heavy Duty version
Version E: version with pneumatic switching mechanism
Version F: version with pneumatic switching mechanism and position switch

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2 Product description
SHLD1 • Source holder
62092-EN-190704
Type labels
3
4
2
1
Fig. 3: Position of the type labels
1 Type label - Source
2 Type label - Source holder
3 Shipping information USA (optional)
4 Warning USA (optional)

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2 Product description
SHLD1 • Source holder
62092-EN-190704
A
B
2
1
3
4
5
7
6
8
5
Cs - 137
12345678
12345678
38131
38131
10 mCi
3/18/16
SHLD1.XXXXX
Fig. 4: Type label
A Type label - Source
B Type label - Source holder
1 Source: Cs-137
2 Serial number of the source capsule (for traceability of the source)
3 Activity of the sources in MBq and mCi or GBq and mCi
4 Date (dd/mm/yyyy)
US version: (mm/yy)
5 Number of the corresponding operating instructions
6 Source holder type
7 Order code of the source holder
8 Serial number of the source holder
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)
• Certicateofthesourcecapsule(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 Data Matrix code on the type label of the instrument or
• Enter the serial number manually in the app
2.2 Principle of operation
The SHLD1 is a source holder for shielding radioactive sources such
as e.g. Cs-137.
Serial number - Instru-
ment search
Application area

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2 Product description
SHLD1 • Source holder
62092-EN-190704
The radioactive source in the source container emits gamma rays.
TheSHLD1ismountedonthevessel,thepipelineoronaconveyor
belt/spiral conveyor directly opposite the sensor.
The source holder shields the environment against gamma radia-
tion and protects the radioactive source from mechanical damage or
chemicalinuences.Incaseoflargemeasuringranges(e.g.withhigh
vessels) two or more source holders are used.
The SHLD1 consists of the components:
1
2
3
4
Fig. 5: Source holder SHLD1
1 Source holder
2 Switchover/locking mechanism
3 Transport lug
4 Mounting surface
The rays emitted by the gamma source are damped when penetrat-
ing the medium. The sensor detecting the attenuated radiation on the
opposite side of the vessel calculates the measured value from the
intensity of the radiation.
Max. activity of the sources
The following table states the max. activity of the sources. Production-
relateductuationsoftheradiationactivityandtolerancesofthe
measuring instruments are not taken into account.
Cs-137
Max. activity max. 3.7 GBq (100 mCi)
Tab. 1: Max. activity of the sources
Caution:
The max. permissible activity of the source can be further limited by a
country-specicapproval.
Functional principle
Source

12
2 Product description
SHLD1 • Source holder
62092-EN-190704
Attenuation factor and half-value layers
Cs-137
Attenuation factor 46
Number of the half-value layers 5.5
Tab. 2: Attenuation factor and half-value layers

13
3 Mounting
SHLD1 • Source holder
62092-EN-190704
3 Mounting
3.1 General instructions
• For mounting of SHLD1 you need a special handling permit.
• Mountingmayonlybecarriedoutbyauthorized,qualiedperson-
nel who are monitored for radiation exposure according to local
lawsorthehandlingpermit.Takenoteofthespecicationsinthe
handling permit. Also take the local conditions into account.
• Carry out all work within the shortest possible time and at the larg-
est possible distance. Provide suitable shielding
• Avoid risk to other persons by taking suitable measures (e.g.
safetyfence,etc.)
• All mounting and dismounting work must only carried out with the
switchinpositionOFF,securedwithalock.
• Keep the weight of the source holder in mind when mounting (up
to 100 kg or 220 lbs)
• Dependingontheversion,thecentreofgravityofSHLD1canvary.
Keep this in mind during crane transport on the lug
Mounting with a crane
Warning:
Checkthehoistingequipmentforsucientliftingcapacity,approx.
110 kg (244 lbs).
Persons must never stand beneath the loads.
The source holder is screwed onto a transport board. Loosen the
screws and lift the source holder from the transport board. For this
purpose you have to use the lug of the source holder.
Useasuitableliftingtackle(shackle,snaphook,etc.)tofastenthe
source holder to the crane hook. Keep in mind that the source holder
will tilt sidewards while lifting.
Versions with manual switchover
Protect the source holder against moisture and hence against cor-
rosion.Ifthesourceholderisexposeddirectlytotheelements,you
should cover it with a roof or a suitable protective bonnet.
Tomaintainthehousingprotection,makesurethatthehousinglidis
closedduringoperationandlocked,ifnecessary.
Makesurethatthedegreeofcontaminationspeciedinchapter
"Technical data" meets the existing ambient conditions.
Version with position switches
Use the recommended cables (see chapter "Connecting to power
supply") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cablegland.Rainandcondensationwatercanthusdraino.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.
General information
Moisture

14
3 Mounting
SHLD1 • Source holder
62092-EN-190704
Version with pneumatic switching mechanism
The pneumatic actuator must not be used under ambient conditions
that can cause corrosion in and on the pneumatic actuator.
3.2 Mounting instructions
For continuous level measurement the source holder must be
mounted slightly above or at the height of the max. level. The radiation
must be directed exactly towards the detector mounted on the op-
posite side.
The source holder SHLD 1 should be mounted as close as possible
to the vessel.
However,withlargemeasuringrangesandsmallvesseldiameters,a
gap can often not be avoided.
Iftherearegapsoremptyspacesaroundtheinstallation,provide
protective fences or grids to keep hands away from the dangerous
area. Such areas must be marked accordingly.
Align the source holder according to its beam exit angle.
180 mm
(7.09")
76 mm
(2.99")
15°
0°
30°
45°
60°
Fig. 6: Orientation - Source holder
a Beam exit angle (0°, 15° 30°, 45°, 60°)
Forcontinuousmassowdeterminationthesourceholdermustbe
mounted above a conveyor belt or a discharge screw conveyor. The
radiation must be directed exactly towards the detector mounted on
the opposite side.
Mount the source holder SHLD 1 on the measuring frame (optional).
There are large spacings and gaps between measuring frame and
conveyor belt.
Iftherearegapsoremptyspacesaroundtheinstallation,provide
protective fences or grids to keep hands away from the dangerous
area. Such areas must be marked accordingly.
The arrangement of the source holders depends on the width and the
loadingheightoftheconveyorbelt.Incaseofwideconveyorbelts,
Orientation - Level meas-
urement
Orientation-Massow
determination

15
3 Mounting
SHLD1 • Source holder
62092-EN-190704
the use of two sources holders can be advantageous. See following
illustration.
Make sure that the total width of the conveyor belt as well as the
complete loading height are in the detection range of the measuring
system.
Ifyouarenotsure,contactourspecialists.
1
60° 45° 45°
BA
Fig. 7: Measurement setup, measuring frame with dierent width
A Measurement setup with a source holder - Beam angle 60°
B Measurement setup with two source holders - Beam angle 45°
1 Conveyor belt
Make sure when planning the measuring system that the sensor elec-
tronicsiseasilyaccessible.Forthisreason,mountthesensorinsuch
a way that the sensor housing is on the same side as the catwalk.
Mount the source holder with symmetrical radiation orientation (60°)
so that the manual switchover mechanism is also accessible from the
catwalk side.
The version of the source container with a beam exit angle of 0° is
the one best suited for point level detection. The radiation must be
directed exactly towards the detector mounted on the opposite side.
Ifyouwanttouselargerexitangles(15°,30°,45°or60°),youhave
to make sure the beam is horizontal. To do this you have to mount the
source holder so that the implied opening of the exit channel is in a
horizontal position.
The source holder SHLD 1 should be mounted as close as possible
to the vessel.
However,withlargemeasuringrangesandsmallvesseldiameters,a
gap can often not be avoided.
Iftherearegapsoremptyspacesaroundtheinstallation,provide
protective fences or grids to keep hands away from the dangerous
area. Such areas must be marked accordingly.
Orientation - Limit level
measurement

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3 Mounting
SHLD1 • Source holder
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3
2
1
Fig. 8: Installation positions - Point level detection with MINITRAC 31
1 Horizontal mounting
2 Vertical mounting
3 Mounting horizontally, at right angles to container
The optimum and most constant conditions for density measurement
in pipes can be achieved if you mount the measuring equipment on
vertical pipelines or conveyors. The radiation must be oriented directly
towards the detector mounted on the opposite side.
To extend the distance the beam travels through the medium and thus
achieveabettermeasuringeect,thetubecanberadiateddiagonally
or a measuring track can be used.
Youcanndtherequiredmountingaccessoriesinchapter"Technical
data".
The source holder SHLD 1 should be mounted as close as possible
to the vessel.
However,withlargemeasuringrangesandsmallvesseldiameters,a
gap can often not be avoided.
Iftherearegapsoremptyspacesaroundtheinstallation,provide
protective fences or grids to keep hands away from the dangerous
area. Such areas must be marked accordingly.
The ideal measurement setup for density measurement is installation
on a vertical pipeline.The pipe diameter should be at least 50 mm
(1.97 in). Flow direction should be from bottom to top.
Orientation - Density
measurement

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3 Mounting
SHLD1 • Source holder
62092-EN-190704
Mountingbrackets,angledattachmentsaswellasmountingclamps
are available for mounting.
Vertical pipeline, 30° inclined, diameter 50 … 100 mm
(1.97 … 3.94 in)
Forsmallpipediameters50…100mm(1.97…3.94in),adiagonal
radiation path is recommended.The distance of the beam through the
mediumisthuslongerandanimprovedmeasuringeectisachieved.
Insuchcases,theoptionalleadshieldingforthedetectorisrecom-
mendedinordertoavoidinuencefromsecondaryradiationsources.
Fig. 9: 30° measurement setup on a pipeline with diameter 50 … 100 mm
(1.97 … 3.94 in)
Vertical pipeline, diameter 50 … 600 mm (1.97 … 23.62 in)
Forpipediameters50…600mm(1.97…23.62in),astraightradia-
tion path is possible. The radiometric sensor can be mounted either
horizontally or vertically.

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3 Mounting
SHLD1 • Source holder
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1
4
3
2
Fig. 10: Measurement setup on a pipeline with a diameter of 50 … 600 mm
(1.97 … 23.62 in), detector mounted vertically
1 Source holder (SHLD 1)
2 Radiometric sensor (MINITRAC)
3 Radiated area
4 Mounting bracket
Avoiding stray radiation - Vertical pipeline, diameter
50 … 600 mm (1.97 … 23.62 in)
Whenmountingtheradiometricsensorhorizontally,theoptionallead
shieldingisrecommendedinordertoavoidinuencefromsecondary
radiation sources.

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3 Mounting
SHLD1 • Source holder
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1
4
3
2
Fig. 11: Measurement setup on a pipeline with a diameter of 50 … 600 mm
(1.97 … 23.62 in), detector mounting horizontal
1 Source holder (SHLD 1)
2 Radiometric sensor (MINITRAC)
3 Radiated area
4 Mounting bracket
Horizontal pipeline
Onahorizontalpipeline,theradiationshouldbedirectedhorizontally
to avoid interference from air pockets.
1
2
3
Fig. 12: Measurement setup on a horizontal pipeline
1 Source holder (SHLD 1)
2 Radiated area
3 Detector (MINITRAC)

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3 Mounting
SHLD1 • Source holder
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Measurement of the local dose rate
Aftermounting,i.e.assoonastheradioactiveemitterismountedin
thesourceholder,thelocaldoserateintheareaofthesourceholder
and the detector must be measured in µSv/h.
Caution:
Dependingontherespectiveinstallation,radiationcanalsoleakout
of the beam exit channel due to scattering. Such stray radiation must
beshieldedowithadditionalleadorsteelsheets.Allcontrolando-
limit areas must be rendered inaccessible and provided with warning
signs.
Behaviour with empty vessel
Caution:
Aftertechnicallycorrectmounting,thecontrolareaaroundanempty
vesselmustbemeasuredforradioactivityandifthereisany,thearea
mustbecordonedoandmarked.Possiblewaysofaccesstothe
insideofthevesselmustbereliablyclosedoandmarkedwitha
warning sign "Radioactive".
Theresponsibleradiationsafetyocercanallowaccessafterhaving
checkedthesafetymeasureswithswitched-osourceholder.
Ifworkmustbecarriedoutinandonthevessel,itisabsolutelyneces-
sarytoswitchotheradiationonthesourceholder.
Installation control