The KROHNE OPTIMASS 6000 is a high-performance Coriolis mass flow sensor designed for a wide variety of process applications. With an operating temperature range of -200°C to +400°C (-328°F to +752°F), it is suitable for general purpose liquid and gas applications as well as specialized cryogenic services such as Liquid Natural Gas (LNG) .

The sensor features an innovative twin V-shaped tube design that is fully welded and maintenance-free. Mass flow accuracy for liquids is ±0.1% of actual measured flow rate under standard conditions, with an optional higher accuracy version achieving ±0.05%. Gas accuracy is better than 0.35% plus zero stability. Repeatability is better than 0.05% for liquids .

In addition to mass flow and density measurement, the OPTIMASS 6000 calculates volume flow, concentration, and velocity. A Pt500 temperature sensor is integrated for temperature measurement. The meter supports a wide range of nominal diameters from DN 8 to 250 (3/8 to 10") with maximum flow rates up to 1,000,000 kg/h (36,743 lb/min) . Process pressure capability depends on material selection: standard 316L stainless steel versions handle up to 100 barg / 1450 psig, while duplex stainless steel versions are rated up to 200 barg / 2900 psig .

The meter is available with either dual-certified stainless steel or Hastelloy C22 measuring tubes to handle tough applications. A wide selection of process connections includes standard flanges up to 1500 lb / PN160 and hygienic connections. Optional features include an insulation/heating jacket for temperature-dependent products and a purge port for safely draining hazardous chemicals .

The OPTIMASS 6000 is designed to work with the KROHNE MFC 400 signal converter, which can be either meter-mounted or remotely mounted. The converter supports Entrained Gas Management (EGM) technology, maintaining operation over a wide range of gas fractions and complex flow conditions .

Hazardous area approvals include ATEX and IECEx intrinsically safe certifications. The meter also offers SIL 2/3 capability for functional safety applications . Typical applications include crystallizing products, tanker loading, CIP/SIP processes (>130°C), LNG metering, and supercritical gases .