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Radiometric level and density source container FQG74
New

Reliable, robust and easy to use radiation source container for up to 20 sources

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Radiometric level and density source container FQG74
New

Reliable, robust and easy to use radiation source container for up to 20 sources

Get a quote

Benefits

  • Best-in-class safety (Type A approval) and radiation protection
  • Easy commissioning of the sources – the source position can be adjusted individually by independent ropes (maximal rope length: 30 meters)
  • High shielding ensures that no control areas are generally required and that installation in accessible areas is possible
  • A high versatility with different variants of the source container enables the use in multiple applications
  • Padlock for fixation the on/off switch position and to protect against theft
FLEXible answers to individual needs
Current product

Radiometric level and density source container FQG74

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  • Specialized products
  • Designed for demanding applications

What is FLEX?

FLEX selections
Technical excellence
Simplicity
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Fundamental selection Meet your basic measurement needs
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Lean selection Handle your core processes easily
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Extended selection Optimize your processes with innovative technologies
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Xpert selection Master your most challenging applications
Variable
Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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24/7 customer portal

Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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Product information

Source container FQG74 - product picture
Radiometric - Source Container FQG74
Specifications
Continuous / Liquids
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Description

The source container FQG74 is designed to reliably hold up to 20 internal radioactive sources with highest activities during radiometric measurements. Thanks to the robust and high shielding, the source container is easy to use in straight and bent dip tube.

Field of application

The source container FQG74 is used in combination with a radiometric transmitter for point level detection, continuous level and multipoint density measurement. It is suitable for applications with long measuring ranges.

Oil & Gas

  • Density profile measurement in the separation process
  • Level control of the catalyst bed across different elevations in the reactor for the hydrocracking process

Petrochemical / Chemical

  • Level or multipoint density measurement in reactors of the PTA and Urea process
Benefits
  • Best-in-class safety (Type A approval) and radiation protection
  • Easy commissioning of the sources – the source position can be adjusted individually by independent ropes (maximal rope length: 30 meters)
  • High shielding ensures that no control areas are generally required and that installation in accessible areas is possible
  • A high versatility with different variants of the source container enables the use in multiple applications
  • Padlock for fixation the on/off switch position and to protect against theft
Downloads
Most downloaded
Radiation Protection
Product family: Source container Product root: FQG74-
Region: Canada
Approval agency: CNSC
Max. activity Co60: 0,0000 GBq
Max. activity Cs137: 814,0000 GBq
English version - 06/2026
Download
Operating Instruction (BA)
BA Source container FQG74 Source container with up to 20 radiation sources Radiometric level measurement
English version - 11/2024
Download
Technical Information (TI)
TI Source Container FQG74 Radiometric level measurement
English version - 08/2026
Download
The CAD Drawings will be available after the configuration.
All downloads
16 Downloads
Technical Information (TI)
TI Source Container FQG74 Radiometric level measurement
English version - 08/2026
Download
Operating Instruction (BA)
BA Source container FQG74 Lowerable source magazine Radiometric level measurement
English version - 11/2024
Download
Operating Instruction (BA)
Most downloaded
BA Source container FQG74 Source container with up to 20 radiation sources Radiometric level measurement
English version - 11/2024
Download
Installation Instructions (EA)
EA Rope extension Source container
FQG63, FQG74
English version - 04/2026
Download
Installation Instructions (EA)
EA Sight glass of the cover with seal Source Container FQG74
English version - 03/2025
Download
Installation Instructions (EA)
EA Seal set Shutter, hood, transportation lock Source Container FQG74
English version - 03/2025
Download
Installation Instructions (EA)
EA Sight glasses of the shutter with seal Source Container FQG74
English version - 03/2025
Download
Special Documentation (SD)
SD Source container FQG74 Loading, unloading and replacing radiation sources
Label set
English version - 10/2024
Download
Special Documentation (SD)
SD Source container FQG74 Loading, unloading and replacing radiation sources
English version - 02/2025
Download
Special Documentation (SD)
SD Tagging Level and pressure measuring instruments
English version - 04/2024
Download
Special Documentation (SD)
SD QGx, FQGx, FSG6x Returning: Source containers, radiation sources
English version - 02/2025
Download
Special Documentation (SD)
SD Process adapter FHG74-C for source container FQG74 Process adapter FHG74-C for source container FQG74
English version - 03/2025
Download
Special Documentation (SD)
SD Source Container FQG60, FQG61/62, FQG63, FQG66, FQG74 Supplementary safety instructions for radiation sources and source containers approved for use in Canada
English version - 01/2026
Download
Innovation (IN)
Innovation Brochure – Source container FQG74 The source holder for radiometric measurements in extreme applications.
English version - 03/2025
Download
Manufacturer Declaration
Product family: Source container Product root: FQG74-
Declaration number: HE_02009_02.26
Manufacturer specification: Radiometric measurement
English version - 02/2026
Download
Radiation Protection
Most downloaded
Product family: Source container Product root: FQG74-
Region: Canada
Approval agency: CNSC
Max. activity Co60: 0,0000 GBq
Max. activity Cs137: 814,0000 GBq
English version - 06/2026
Download

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Spare parts and accessories

further parts
further parts

Sealing Set FQG74

further parts
further parts
Order code 71677015
further parts
further parts

Eyelet connection M16x24, 4 pcs.

further parts
further parts
Order code 71676920
further parts
further parts

Sight glass, in hood Rd125x15

further parts
further parts
Order code 71677022
further parts
further parts

Sight glas shutter, seal

further parts
further parts
Order code 71695989
Spare parts & accessories
Source container FQG74 - product picture
Radiometric - Source Container FQG74
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Source container FQG74 - product picture
Radiometric - Source Container FQG74
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Spare parts and accessories

further parts
further parts

Sealing Set FQG74

further parts
further parts
Order code 71677015
further parts
further parts

Eyelet connection M16x24, 4 pcs.

further parts
further parts
Order code 71676920
further parts
further parts

Sight glass, in hood Rd125x15

further parts
further parts
Order code 71677022
further parts
further parts

Sight glas shutter, seal

further parts
further parts
Order code 71695989
Spare parts & accessories

Selection of compatible products

/