Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of coriolis mass flow controller in China. Welcome to buy high quality coriolis mass flow controller at competitive price from our factory. We also accept customized orders.

Parameter overview

Parameter	Specification
Diameter range	DN01 – DN250 (1/12" – 10")
Accuracy (liquid)	±0.1% ~ ±1.0% flow rate (0.1/0.15/0.2/0.5/1.0 level selectable)
Accuracy (gas)	±0.25% ~ ±1.0% flow rate
Repeatability	0.075% ~ 0.5% flow rate
Density accuracy	±0.001 g/cm³ (±1 kg/m³)
Temperature accuracy	±1°C or ±0.5% of reading

For more parameters, please refer to the specifications.

>View all specifications

How does a Coriolis mass flowmeter work?

HNF90 Coriolis mass flowmeter

Drive coil vibrates tubes at resonant frequency. Flow induces Coriolis force – tubes twist. Inlet/outlet twist direction opposite. Phase difference (Δt) proportional to mass flow. Tube vibration frequency = density. Temperature measured via RTD. Three variables from one sensor.

Why choose HNF90 ?

Mass flow directly – no pressure/temperature compensation needed. Density from vibration frequency. Temperature from RTD. One transmitter outputs all three. Replaces multiple instruments.

DN01 – DN250. Pressure: up to 96MPa. Temp: –200°C to +350°C. Materials: 316L, Hastelloy, Titanium, Tantalum, Duplex, 904L. U-shaped / micro-bend / straight tube / inverted triangle. Match exactly to your media and process.

typical application

LNG/CNG custody transfer. High pressure (up to 96MPa). Low-temperature models available (–200°C). Accuracy ±0.15%. Ex d IIC T6 approved for Zone 1/2.

Hydrochloric acid / sulphuric acid / nitric acid / caustic. Wetted parts: Hastelloy or Tantalum. No pressure loss. No moving parts in flow path. Self-diagnostic circuit for fault detection.

Food / pharmaceutical / biotech. 3-A certified, EHEDG tested. CIP/SIP capable. Wetted parts: 316L mirror-polished. Measuring edible oils, flavours, syrups, palm oil, blending ingredients.

Installation and Selection Key Points

Zero calibration required after installation (no flow, tubes full)
Upstream/downstream straight pipe not critical – Coriolis meter has no velocity profile sensitivity
Avoid external vibration near sensor – can affect zero stability
For gas applications: select appropriate tube size to keep velocity above minimum detectable range
Cable length between sensor and transmitter: standard 3m, extendable on request

HNF90 Mass Flow Meter
Specific Parameters	Value / Description
Measurement Principle	Based on the Coriolis Effect. When fluid flows through the vibrating measurement tube, a phase difference proportional to the mass flow rate is generated. The sensor detects changes in vibration frequency, phase difference, and amplitude, directly calculates the mass flow rate, and determines the fluid density through synchronous vibration frequency.
Nominal Diameter Range	DN01, DN02, DN03, DN04, DN08, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN150, DN200, DN250
Wetted Parts Material	316L Stainless Steel (default), options include 904L, Titanium, C4 Steel, Hastelloy, Duplex Steel, Tantalum, etc.
Connection Method	Threads (NPT, UNF, G thread, DIN sanitary thread), flanges (HG/T, GB/T, ASME, EN, JIS), sanitary clamps (Tri Clamp), etc.
Maximum Measurement Error	Liquid: ±0.1% ± (zero stability / actual flow) ×100%; Gas: ±0.25% ± (zero stability / actual flow) ×100% (accuracy classes available: 0.15, 0.2, 0.5, 1.0).
Measurement Range	Range ratio up to 100:1 (low-frequency sensors up to 1000:1), specific maximum flow varies by model and size (e.g., DN08 max 55 lb/min, DN250 max 66138 lb/min).
Maximum Process Pressure	Up to 96 MPa (depending on the model and size, for example, the small diameter PU type up to 87.5 MPa, large diameter flange type minimum 4 MPa).
Medium Temperature Range	Standard type: -40°C ~ +85°C; Low Temperature type (L): -200°C ~ +85°C; High Temperature type (G): +85°C ~ +200°C; Ultra High Temperature type (C): +200°C ~ +350°C.
Ambient Temperature Range	-40°C ~ +85°C (transmitter).
Transmitter Housing Material	Aluminum or Stainless Steel.
Display/Operation	LCD display, supports operation interface in English, Chinese, and Russian, easy parameter setting.
Inputs	Supports temperature sensor input (e.g. Pt100) for temperature compensation.
Outputs	Two independently configurable output signals (such as 4-20mA, pulse/frequency) for outputting flow, density, etc.; supports digital communication.
Power Supply	Standard 24 VDC (see electrical connection diagram for details).
Certificate	Explosion-proof certification: Ex d ib IIC T6 Gb (certificate number CQEx22.0774X); protection level: IP67; hygienic type complies with 3-A certification, passed EHEDG test.
Functional Safety	Equipped with powerful circuit self-diagnostic functions, facilitating fault location.