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This is a product of KROHNE Marshall.

OPTIMASS 7400

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%.

The OPTIMASS 7400 is the only single straight tube mass flowmeter for use when custody transfer is required in the highest OIML accuracy class of 0.3. Together with the OPTIMASS 7010, it is also the only Coriolis meter with a single straight tube to be available in four sensor materials (titanium, stainless steel, Hastelloy® C, tantalum). Due to its sensor design, there is virtually no pressure loss and the flowmeter is self-draining and easy to clean, which makes it also the perfect choice for hygienic applications. The Coriolis device can also be used in hazardous areas. Like with all other KROHNE mass flowmeters there are no installation restrictions as the flowmeter is not affected by crosstalk/line vibrations and can thus be installed in series or in parallel. The Coriolis mass flowmeter also provides enhanced diagnostics (NE 107) and comes with various digital communication options. Via the OPTICHECK Flow Mobile app all device settings can be managed on-site via a secure Bluetooth® connection. In this way, a variety of commissioning tasks, e.g. zero calibration or configuration of diagnostics, can be done wirelessly.

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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