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A radiometric measurement is a system , which consists of a source that emits gamma radiation and a detector that can detect this radiation . Gamma radiation is attenuated as it passes through the vessel or the pipeline and its contents . The amount of attenuation depends on the filling level or the product density : the higher the fill level or the denser the product , the less radiation reaches the detector . In this manner , the measurement is not influenced by pressure , temperature , viscosity , colour or chemical properties of the product to be measured . This results in a high level of reliability combined with freedom from wear and tear , even under harsh operating and environmental conditions .
measurement
h measurement ent ies with systems increasing are used level for height continuous , for example process , in gas essels reactors easurements . Density , a simple monitor , concentration level measurement or solids would content not sive onditions r the manner unique
. Here , process without , a combination affecting the of a flow density properties profile density es s are better achieved switch process can with visualisation be a used to alert and the thus operator more nts redefined and geometries density value , in order to take corrective s heck . In critical on production .
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measurement
Herts , AL5 4UT ies with increasing level height , for example , in gas m · www . berthold . com
reactors , a simple level measurement Density and density would switch not measurement onditions ontinuous Level and . Here level process switch , a combination of a density profile
Berthold ‘ s density measurement measurement systems are used for continuous ration es better or solids process content visualisation and thus more
Berthold ‘ s radiometric continuous level and level switch measurements
ting the flow properties monitor processes safely and d to alert reliably . the Customised operator solutions for
td rder . to take corrective
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96 PECM Issue 68
results in a high level of reliability combined with freedom from wear and tear , nd environmental conditions .
PROCESS TECHNOLOGIES s ere a system conventional , which measurement consists of a source techniques that emits fail . gamma radiation and a
MEASUREMENT SOLUTIONS
c measurement systems for the chemical and easurement
adiation . Gamma radiation is attenuated as it passes through the vessel or ssure , and high-temperature environments require
ous The level amount and of level attenuation switch measurements depends the monitor filling level or the product density :
. enser onditions Customised BERTHOLD the . product Due solutions to the , the non-intrusive less for the radiation unique nature reaches process of the detector . In this manner , the ials d petrochemical by , the pressure system , temperature is industries normally wear , are viscosity achieved and tear , colour free with and or a chemical , properties of the
emical results in Berthold different & in petrochemical a
‘ s radiometric
high arrangements level measuring
of reliability plants and . combined geometries with , freedom from wear and tear , systems are used where nd o insert environmental sources into conventional measurement
conditions vessels . In
. critical switches techniques
in fail
conjunction
. Berthold is the with continuous Berthold is the level worldwide worldwide leading supplier of ased radiometric process measurement safety . systems leading supplier of for the chemical and petrochemical easurement radiometric measurement industries . Corrosive , abrasive , highpressure , high-temperature s ous of a level source and that level emits switch gamma measurements systems radiation for monitor and the chemical a environments require a noncontacting technology that can
h measurement and petrochemical
. n Customised attenuated solutions as it passes for the through unique the process vessel or ent withstand these conditions . Due industries . d systems are used for continuous process to the non-intrusive nature of the essels depends petrochemical on the filling industries level or are the achieved product with density a : radiometric . Density measurement , concentration and the the unique or solids process content conditions in es in use different of rugged materials arrangements , system and geometries , s radiation reaches the detector the . chemical In this and manner petrochemical sive manner , the is normally wear , without and tear free affecting the flow properties o insert sources into vessels . In industries critical are achieved with a and , thus , perfectly suited for the density re , viscosity switch , colour can be or used chemical to variety alert properties of the detectors operator and of sources the
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wells to insert sources into vessels . In critical applications , the use of level switches in conjunction with continuous level measurements provides increased process safety .
process control on pipelines and in vessels . Density , concentration or solids content are determined in a non-intrusive manner , without
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affecting the flow properties of the measured material . A density switch can be used to alert the operator when the process reaches a predefined density value in order to take corrective action or to perform a quality check on production .
Level and density profile measurement
When the product density varies with increasing level height , for example , in gas phase reactors or fluidized bed reactors , a simple level measurement would not correctly represent process conditions . Here , a combination of a density profile and level measurement provides better process visualisation and thus more improved process control .