Overview
The OPTIMASS 7400 is a high-end Coriolis mass flowmeter for demanding process and custody transfer (CT) applications. It is the ideal solution when it comes to high accuracy measurement of gases and shear-sensitive or viscous liquids, slurries, very aggressive media or media with a low flow velocity. The meter features Entrained Gas Management (EGMTM) for liquid applications and thus maintains operation even with entrained gas of up to 100%.
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
- Single straight tube design
- Entrained Gas Management (EGMTM): maintains operation with air or gas entrainments in the medium
- Device commissioning, verification, diagnostics and monitoring via a secure wireless Bluetooth® connection (<20 m / 65.6 ft)
- Fast and completely digital signal processing
- High accuracy mass, density and volume flow measurement (±0.1% of MV)
- Highest OIML accuracy class of 0.3 for custody transfer (CT)
- Extensive sensor and process diagnostics (incl. NE 107)
- Integrated temperature measurement
- Available in four sensor materials: titanium, stainless steel, Hastelloy® or tantalum
- With sensor size DN80 / 3'' in titanium or Hastelloy® it is the largest single straight tube meter on the market
- Optional PED approved secondary pressure containment up to 100 barg / 1450 psig
- Many options (heat tracing, purge port etc.)
- No crosstalk: resistant to installation and process effects
- Various approvals and certifications (hygienic, custody transfer, marine, hazardous areas etc.)
- On-site verification of flowmeter with OPTICHECK service tool
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Specifications
Depending on selected device configuration
General information
Product type Flowmeter Product family name OPTIMASS Product positioning For advanced process and custody transfer (CT) applications Measurement principle Coriolis Measured media Liquids, Gases Operating conditions
Process pressure max. 100 barg/
1450 psigProcess temperature -40…+150°C/
-40…+302°FMaterials
Measuring tube Austenitic alloy (2.4602/Alloy 22), Duplex stainless steel (1.4462/318), Titanium alloy (3.7195/Ti-Grade 9), Tantalum (UNS RO5255 / RO5200) Process connections
Flange connections EN (1092-1): DN10…100
ASME (B 16.5): ½…4''
JIS (B 2220): 10…100AHygienic connections Clamp (DIN 32676): DN10, DN15, DN25, DN40, DN50, DN80
Clamp (ISO 2852): 25, 40, 51, 76.1
Tri-Clamp: ½'', ¾'', 1'', 1½'', 2'', 3''
Threaded ferrule (DIN 11851): DN10, DN15, DN25, DN40, DN50, DN80
Flange with groove (DIN 11864-2): DN10, DN15, DN25, DN40, DN50, DN80
Threaded ferrule (SMS 1146): 25 mm, 38 mm, 51 mm, 76 mm
IDF/ISS: 10A, 15A, 1'', 1 ½'', 2'', 3Approvals/Standards
Certificates/Approvals Ex ATEX, IECEx, NEPSI, EAC Ex, cFMus, INMETRO, KCs, UKEX Certificates/Approvals Hygienic FDA, 3A, EHEDG, EC 1935/2004, ASME BPE Certificates/Approvals Marine ABS, BV, CCS, DNV, KR, LR, NK, RINA, CRS, IRS, PRS, RS Communication
Analogue outputs 4…20 mA Discrete outputs Limit switches, Pulse, Frequency, Status Digital outputs FOUNDATION™ fieldbus, HART®, Profibus-PA, Profibus-DP, Modbus RTU, EtherNet/IP™, PROFINET, Bluetooth Videos
OPTIMASS product family
OPTIMASS EGM
Coriolis Flowmeters in the Oil & Gas Industry
Coriolis Flowmeters in the Chemical Industry
Process control in wet FGDs
Milk reception in dairies and cheese plants
PROFINET
myDevice
OPTICHECK
Video tutorials briefly explained – Video-based operating instructions for field devices
PICK briefly explained - Digital access to the manufacturer documentation of your KROHNE devices
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25 videosVideo Category
Adjustment of the measured value pages of the transmitter
GFC 300, IFC 100 | 300, MFC 300 | 400, UFC 300 F V2 | W V2 | 400 V1 | V2
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Adjustment of the units at the transmitter
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Bi-directional flow detection (1x current)
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Bi-directional flow detection (1x current 1x status)
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Bi-directional flow detection (2x current)
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Changeover current output 4-20 mA to 0-20 mA
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Explanation/Connection Current output
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Explanation/Connection Frequency output
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Explanation/Connection Pulse output
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Explanation/Connection Status output
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Parameterization current output
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Parameterization frequency output
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Parameterization status output
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Parameterization status output as limit switch
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Setting the measuring range on the display (quick setup)
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GFC 300, IFC 050 | 100 | 300 | 400, MFC 400, UFC 300 F V2 | W V2 | 400 V1 | V2
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KROHNE - Technology you can trust
Related website
Find more information about our safe, reliable and simple to handle process instrumentation for Safety Instrumented Systems and an overview of the KROHNE SIL competence on this dedicated website.
Related website
Explore the technical details and highlights of our OPTIMASS Coriolis flow meter family in an interactive demo that features 360° views plus short video clips.
Entrained Gas Management in Coriolis Flowmeters
KROHNE Academy Online
The course consists of a learning module on how to master entrained gas in the flow measurement of liquids.
KROHNE Academy Online
This course deals with the basics of the Coriolis measurement principle, the construction of Coriolis Mass flowmeters and all relevant areas.
Accessories
Handheld for in-depth verification, device commissioning and monitoring
- On-site performance check and verification (level 0,1,2) without process interruption
- Convenient commissioning of field devices, e.g. zero calibration
- Detailed reports for proof test documentation of safety loops acc. to IEC 61508/61511, and for quality management systems (ISO 9001)
DTM for advanced device verification and commissioning
- Usable with any FDT frame application from the control room or on site
- Advanced verification (level 0,1) without process interruption
- Detailed reports for proof test documentation of safety loops acc. to IEC 61508/61511, and for quality management systems (ISO 9001)
Mobile app for wireless device commissioning, verification and monitoring
- Wireless commissioning and device parametrisation via secure Bluetooth connection
- Verification without measurement interruption
- Monitoring of meter performance and application parameters
- Free download for iOS and Android
Applications
Flow and density measurement of paint additives and bases
Application Report | Chemical
- Coriolis flow measurement improves overall production consistency of paints
- Unobstructed flow stream saves processing time and improves throughput
- In line continuous density measurement as assures proper recipe blending and waste reduction
- Replacement of rotary meters with single straight tube flowmeters with no moving parts
Process instrumentation for a nuclear waste treatment plant
Application Report | Nuclear
- Safe and sustainable treatment of nuclear liquid waste from Mo-99 radiopharmaceutical production
- Instrument supply for flow, level, pressure, and temperature measurement
- Including radioactive waste measurement, hot cell pressure control and chemical dosing
- Supplies of instruments for nuclear and non-nuclear environments
Flow and concentration measurement for dilution of sulphuric acid
Application Note | Chemical
- Automated control loop for a consistent product quality
- Combined flowmeter solution to achieve the desired acid concentration
- Non-radiometric inline concentration and mass flow measurement of sulphuric acid
- Ultrasonic flow measurement of demineralised water for dilution
Flow measurement of paint for road markings
Application Report | Machinery & Apparatus
- Cost reduction by increasing paint use efficiency
- Installation of a single straight tube Coriolis mass flowmeter in confined space of line marking trucks
- Reliable and accurate readings of flow and temperature at low flow rates and high pressures
- Bluetooth® functionality allows access to process trends and meter diagnostics from the truck cabin
Dosing of additives in gypsum plasterboard production
Application Report | Machinery & Apparatus
- Equipping a foam generator with electromagnetic and Coriolis mass flowmeters
- High accuracy flow measurement of silicone, soap, water, plasticizer and wax
- Fast PROFINET data transfer for multi-parameter measurement (flow rate, density, temperature, etc.)
- Less wiring and installation costs
Dosing of ingredients in chocolate production
Application Report | Food & Beverage
- Values measured precisely for consistently high chocolate quality
- Coriolis mass flow measurement for different dosing units
- Straight tube meters for measuring highly viscous media (cocoa mass, lecithin) as well as low viscosity media (cocoa butter, flavourings)
Flow and density measurement of lime slurry in flue gas cleaning
Application Report | Power generation
- Effective use of lime in desulphurisation units of a USC power plant
- Monitoring concentration and flow rate of a very abrasive and clogging medium
- Cost-efficient alternative to radiometric density measurement in feed lines to an absorption tower
Flow and concentration measurement for automated sludge thickening
Application Note | Water & Wastewater
- Control loop for the efficient dosing of flocculants in the secondary clarifier
- Measurement of total solid content and flow with just one instrument
- Increased process stability thanks to effective prevention of sludge flotation
Measurement of flow and total solid content for a flocculant station
Application Report | Water & Wastewater
- Control loop for the efficient use of flocculants
- Flowmeters fitted to a sludge thickener
- Increased stability in sludge thickening operation
Mass flow measurement of spinach sauce
Application Report | Food & Beverage
- Highly precise dosing of a seasoned sauce mixture to produce creamed spinach
- Measuring a viscous product with entrained gas and fluctuating density
- Consistent product quality and low production costs made possible by use of a mass flowmeter with a straight measuring tube
Downloads
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Document Type
TitleDocument TypeSupplementary instructions Ex / Hazardous AreasMFC 300
OPTIGAS 5000 | 5010 | 5300
OPTIMASS 1000 | 1010 | 1300 | 2000 | 2010 | 2300 | 3000 | 3010 | 3300 | 7000 | 7010 | 7300 | 8000 | 8010 | 8300MFC 300, ATEX, Canada Ex, IECEx, USA Ex, EPL Ga/Gb Zone 0/1, EPL Ga Zone 0, EPL Gb Zone 1, EPL Da/Db Zone 20/21, EPL Da Zone 20, EPL Db Zone 21, Ex d or XP, Ex i or IS, Ex t or DIP, PTB06ATEX2036X, PTB06ATEX2037X, PTB06ATEX2038XHandbooksDownloadsEN
Supplementary instructions Ex / Hazardous AreasOPTIMASS 1000 | 2000 | 3000 | 6000 | 7000MFC 400, ATEX, Brazil Ex | INMETRO, Canada Ex, IECEx, UKEX, USA Ex, EPL Ga/Gb Zone 0/1, EPL Ga Zone 0, EPL Gb Zone 1, EPL Da/Db Zone 20/21, EPL Da Zone 20, EPL Db Zone 21, Ex d or XP, Ex i or IS, Ex t or DIP, 3046766, CML22ATEX1465X, CML22ATEX1466X, CML22ATEX2464X, CML22UKEX1355X, CML22UKEX1356X, CML22UKEX2354X, DNV140001X, DNV140002X, DNV140003X, DNV230001X, DNV230002X, DNV230003X, IECExCML220066X, IECExCML220067X, IECExCML220068X, PTB12120041X, PTB12120042X, PTB12120043X, PTB12ATEX2013X, PTB12ATEX2014X, PTB12ATEX2015XHandbooksDownloadsENSupplementary instructions Ex / Hazardous AreasOPTIMASS Control drawings for cFMusMFC 400, Canada Ex, USA Ex, EPL Ga/Gb Zone 0/1, EPL Ga Zone 0, EPL Gb Zone 1, EPL Da/Db Zone 20/21, EPL Da Zone 20, EPL Db Zone 21, Ex d or XP, Ex i or IS, Ex t or DIP, Class II Division 1, Class II Division 2, Class III Division 1, Class III Division 2HandbooksDownloadsENSupplementary instructions CommunicationMFC 400Electronic Revision 1, ModbusHandbooksDownloadsENSupplementary instructions CommunicationMFC 400Electronic Revision 1, PROFIBUS DP, PROFIBUSHandbooksDownloadsENSupplementary instructions CommunicationMFC 400Electronic Revision 2, ModbusHandbooksDownloadsENSupplementary instructions CommunicationMFC 400Electronic Revision 2, PROFIBUS DP, PROFIBUSHandbooksDownloadsENSupplementary instructions CommunicationMFC 400Electronic Revision 2, PROFINETHandbooksDownloadsENSupplementary instructions CommunicationMFC 400Electronic Revision 2, EtherNet/IPHandbooksDownloadsEN
BR 21850 
US 10156 
AR 2875 
AO 2488 
MY 2113 
DE 1889 
EC 1427 
BD 970 
