Gn Flow Meter is a leading manufacturer of microfluidic measurement and control instruments.

CMFM / CMFI Coriolis Mass Flow Meter

2026-09-21

When Accuracy Is Not Negotiable

Some applications tolerate approximation. Coriolis applications do not.

Custody transfer – every gram has a price
Chemical dosing – stoichiometry must be exact
Gas blending – safety depends on ratio control
Pharmaceutical – regulatory compliance demands traceability

The CMFM and CMFI deliver the measurement certainty these applications demand.

Why Coriolis – Not Any Other Flowmeter

Measurement Need	Why Coriolis Wins
Direct mass flow	No need for temperature/pressure compensation – mass is mass
Density measurement	Built-in density reading from the same sensor
Temperature measurement	Integrated temperature output
No moving parts	Nothing to wear, nothing to replace, nothing to fail
Low pressure drop	Straight-through flow path – saves pump energy
Wide turndown	Accurate from 1% to 100% of full scale
Multiphase capability	Handles liquids, slurries, and gases

Built for the Real World

Your Challenge	CMFM / CMFI Answer
Harsh operating environments	No moving parts – no wear, no maintenance, no downtime
Hazardous areas	ExII 2G Ex db ib IIC T6...T2 Gb certified for explosive atmospheres
Wide temperature swings	-60°C ~ +200°C – handles cryogenic to hot processes
Corrosive fluids	SS316L wetted parts – compatible with aggressive media
Multiple output needs	4~20mA current loop + 0~10kHz frequency/pulse output
System integration	Modbus RS485, batch control relay, multiple process connections
Custom requirements	OEM, ODM, OBM support – we build to your specification

Key Specifications

Parameter	CMFM	CMFI
Product Name	Coriolis Mass Flow Meter	Coriolis Mass Flow Meter
Accuracy	±0.2% / ±0.1%	±[0.2% + (zero stability / flow rate × 100%)]
Repeatability	—	±(1/2) × [0.2% + (zero stability / flow rate × 100%)]
Density Range	0.2 g/cm³ ~ 3.5 g/cm³	0.2 g/cm³ ~ 3.5 g/cm³
Density Accuracy	±0.002 g/cm³	±0.002 g/cm³
Temperature Range	-300°C ~ 350°C	-60°C ~ +200°C
Temperature Accuracy	—	±1°C
Material	SS316L	SS316L
Output – Current Loop	4~20mA	4~20mA
Output – Frequency/Pulse	0Hz ~ 10kHz	0Hz ~ 10kHz
Medium	Various liquid or gas	Various liquid or gas
Certificate	ExII 2G Ex db ib IIC T6...T2 Gb	ExII 2G Ex db ib IIC T6...T2 Gb
Power Supply	—	AC(220±10%)V, (50±5%)Hz / DC(24±10%)V
Power Consumption	—	<15W
Environmental Temperature	—	0°C ~ +40°C
Environmental Humidity	—	≤90% RH, non-condensing
Atmospheric Pressure	—	86kPa ~ 106kPa
Batch Control Relay	—	24V/0.1A, normally open

Patented Technology – Chinese Patent No. 03119685.3, 03149996.1

The CMFI is patented and developed by our company. It represents the leading edge of precision flow measurement – offering direct mass flow, volume flow, density, and temperature measurement from a single instrument.

No additional equipment. No manual calculations. No estimations.

Typical Applications

Industry	Application	Why Coriolis
Oil and Gas	LPG, natural gas, crude oil custody transfer	Direct mass measurement, high accuracy
Chemical	Dosing, blending, reactor feed	Density and mass in one instrument
Pharmaceutical	API measurement, solvent dosing	Traceable, repeatable, compliant
Food and Beverage	Syrup, concentrate, additive dosing	Hygienic, accurate, reliable
Energy	Oxygen, hydrogen, fuel gas measurement	Wide turndown, hazardous area certified
Water and Wastewater	Chemical dosing, slurry measurement	No moving parts, low maintenance

What Sets CMFM / CMFI Apart

Feature	What It Means for You
No moving parts	Nothing to wear out – years of maintenance-free operation
Direct mass measurement	No compensation calculations – what you read is what you get
Density + temperature + mass	Three measurements from one instrument
Hazardous area certified	ExII 2G Ex db ib IIC T6...T2 Gb – safe in explosive atmospheres
SS316L construction	Compatible with corrosive and high-purity fluids
Multiple outputs	4~20mA, frequency/pulse, RS485, batch relay – connects to any system
Wide temperature range	-60°C to +200°C – from cryogenic to hot process
Custom support	OEM, ODM, OBM – we build to your specification

One Question

Would you rather estimate your flow – or measure it?

Estimation leads to waste. Estimation leads to disputes. Estimation leads to uncertainty.

Measurement leads to precision. Measurement leads to profit. Measurement leads to confidence.

The CMFM and CMFI give you the number you can trust.

Ready to specify a Coriolis Mass Flow Meter for your application?

Contact us with your fluid type, flow range, pressure, temperature, and output requirements. We'll recommend the right model and provide a quote within 24 hours.

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Shanghai Cixi Instrument CO.,LTD was founded in 2008 and is located in Shanghai Songjiang industrial park. We are the professional flow meter manufacture who integrate R&D, production and sales as one manufacturers.