Coriolis Mass Flow Meters β Direct Mass, Density, Brix & Temperature Measurement for High-Accuracy Industrial Applications
Powered by NPK Industries & Co. β Industrial Instrumentation Experts Since 2008
Coriolis Mass Flow Meters are the gold standard for measuring mass flow, density, temperature, and volume β all in a single device. Unlike volumetric meters, which get affected by pressure, viscosity, temperature, or fluid composition, Coriolis meters measure mass directly using the Coriolis effect.
For industries where quality, dosing accuracy, and traceability matter, Coriolis meters deliver unmatched performance.
NPK Industries supplies and integrates the worldβs leading Coriolis technologies:
π΅ Krohne Marshall β Optimass Series (1000 / 6000 / 7000 / MFC400)
π’ Schneider Electric (Foxboro) β CFS300A / CFS600A / CFS700A / CFT51
π΄ Anton Paar β L-Corr 4000
Β What Is a Coriolis Mass Flow Meter?
- A Coriolis flow meter measures mass flow by detecting the vibration of tubes carrying the fluid. As fluid passes through vibrating tubes, Coriolis force causes the tubes to twist.
Tube twist β phase shift β proportional to mass flow.
What It Measures:
β Mass flow (primary)
β Density
β Temperature
β Volume flow (derived)
β Concentration (through density)
Why It Is So Powerful:
- Immune to temperature changes
- Immune to viscosity changes
- Works for clean, viscous, corrosive, and slurry fluids
- High accuracy (Β±0.1% or better)
- Ideal for custody transfer, batching, and mixing
Working Principle
Coriolis meters use vibrating measuring tubes. As fluid flows:
Electromagnetic driver vibrates the tubes at resonance
Fluid passing through adds Coriolis force
Upstream / downstream tubes oscillate out of phase
Sensors detect time difference (Ξt)
Ξt β mass flow rate
Density Measurement:
When there is no flow, the resonant frequency of tubes changes based on fluid density.
Higher density β lower vibration frequency.
Temperature Measurement:
Integrated RTD measures flowing fluid temperature.
Brand & Models We Offer
Krohne Marshall β Optimass Series
Optimass 1000
General-purpose, economical Coriolis meter.
Applications: water, oils, chemicals, food liquids
Optimass 6000
High accuracy, twin-straight-tube design.
Applications: dairy, process chemicals, solvents
Optimass 7000
Premium curved-tube, multi-variable meter, ideal for hygienic and corrosive service.
Applications: pharma, specialty chemicals, high-precision dosing
MFC400 Converter
Advanced signal converter with entrained-gas management (EGM).
Applications: aerated fluids, CIP chemicals, paints, slurries
Schneider Electric (Foxboro) β CFS Series
CFS300A
Compact, accurate, for general industrial use.
Applications: chemicals, dairy, fuel, utilities
CFS600A
High-range, twin-tube design for critical lines.
Applications: steam condensate, high-viscosity fluids
CFS700A
Premium accuracy + density measurement + high-pressure/high-temperature rating
Applications: custody transfer, premium process industries
CFT51 Transmitter
Intelligent mass flow transmitter with diagnostics, batching, and advanced processing
Anton Paar L-Corr 4000
High-density accuracy, ideal for premium liquid lines and process quality control.
Applications: high-value liquids, petrochemicals, beverages, pharma
Why Choose Coriolis Meters?
- Coriolis meters excel because they measure mass directly, unlike:
- Magnetic meters (conductivity needed)
- Vortex meters (require stable flow profile)
- Ultrasonic meters (affected by aeration)
- Turbine meters (moving parts β wear)
Technical Advantages:
β Direct mass flow (no compensation needed)
β Β±0.1% accuracy or better
β Density measurement included
β Temperature measurement included
β No moving parts β low maintenance
β Works with viscous, corrosive, and slurry media
β Not affected by pressure/temperature changes
β Excellent for batching & dosing
Commercial Benefits for Plants:
β Lower operating cost
β Reduced wastage in production
β Improved batch accuracy
β Energy savings (low pressure drop designs)
β Better process consistency & quality