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Technical Specifications
| Measurand | Mass flow, density, temperature |
| Nominal Diameter | Straight tube type: DN8~DN80 |
| U type: DN20~DN150 | |
| Triangle split type: DN3~DN15 | |
| Density Range | （0.3～3.000）g/cm3 |
| Temperature Range | （-200～300）℃ |
| Output | |
| Transmitter output | (4~20)mA, output load (250~600)Ω |
| Communications output | RS485 interface, MODBUS-RTU communication protocol; Hart |
| Frequency (pulse) output | Pulse width: 50% |
| Active: output current 10mA, open circuit voltage 24V | |
| Power Supply | |
| Power Supply Voltage | 24VDC / 220VAC |
| Power dissipation | ≤15W |
| Electrical interface | M20*1.5 |
| Performance Parameter | |
| Accuracy | Flow: 0.2%, 0.5% |
| Density: ±0.002g/cm3 | |
| Temperature: ±1℃ | |
| Repetitiveness | 1/2 of the measurement error |
| Process Conditions | |
| Medium temperature | Standard type: (-50~ 200)℃, (-20~ 200)℃ |
| High temperature type: (-50 ~ 300) ℃ | |
| Low temperature type: (-200~200) ℃ | |
| Process Pressure | （0～4.0）MPa |
| Pressure Loss | Maximum flow corresponds to pressure loss of 100kPa (water as medium) |
| Ambient Condition | |
| Temperature | - 40℃～+60℃ |
| Humidity | 35%～95% |
| Protection level | IP 67 |
- Flow range of straight tube mass Flow Meter
| DN (mm) | Flow range（kg/h） | Flow range of sanitary Flow Meter（kg/h） | Zero Stability（kg/h） |
| 8 | 0～960～1440 | / | 0.096 |
| 10 | 0～1500～2250 | / | 0.15 |
| 15 | 0～3000～4500 | / | 0.3 |
| 20 | 0～6000～9000 | 0～4500 | 0.6 |
| 25 | 0～9600～14400 | 0～9000 | 0.96 |
| 32 | 0～18000～27000 | 0～14400 | 1.8 |
| 40 | 0～30000～45000 | 0～27000 | 3 |
| 50 | 0～48000～72000 | 0～45000 | 4.8 |
| 80 | 0～120000～180000 | / | 12 |
- Flow range of non-direct tube mass Flow Meter
| DN (mm) | Flow range（kg/h） | Flow range of sanitary Flow Meter（kg/h） | Zero Stability（kg/h） |
| 3 | 0～96～144 | / | 0.0096 |
| 6 | 0～540～810 | / | 0.054 |
| 8 | 0～960～1440 | / | 0.096 |
| 10 | 0～1500～2250 | / | 0.15 |
| 15 | 0～3000～4500 | / | 0.3 |
| 20 | 0～6000～9000 | 0～3000～4500 | 0.6 |
| 25 | 0～9600～14400 | 0～6000～9000 | 0.96 |
| 32 | 0～18000～27000 | 0～9600～14400 | 1.8 |
| 40 | 0～30000～45000 | 0～18000～27000 | 3 |
| 50 | 0～48000～72000 | 0～30000～45000 | 4.8 |
| 80 | 0～120000～180000 | 0～75000～90000 | 12 |
| 100 | 0～192000～300000 | / | 19.2 |
| 150 | 0～360000 | / | 36 |
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Applications
The Coriolis Mass Flow Meter is widely used in industrial process control and precision mass flow measurement applications, including:
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Chemical Industry Flow Measurement – Accurate measurement of acids, solvents, chemical solutions and high viscosity media.
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Petroleum and Oil Industry – Mass flow measurement of crude oil, refined products, fuels and hydrocarbons.
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Food and Beverage Processing – Hygienic mass flow and density measurement for liquid food materials and additives.
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Pharmaceutical Manufacturing – Precise flow control and concentration monitoring in pharmaceutical production lines.
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Paper and Pulp Industry – Slurry and suspension flow measurement in pulp processing systems.
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High Viscosity and Slurry Applications – Industrial measurement of fluids that are difficult to measure using conventional volumetric flow meters.
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Process Control Systems – Real-time mass flow and density monitoring for automated industrial control systems.
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Measuring principle
The Coriolis Mass Flow Meter operates according to the Coriolis force principle.
When a pipe rotates around a fixed point while fluid flows through it, the moving fluid particles generate inertial forces. Each particle of mass δm moving at velocity υ in a tube rotating at angular velocity ω produces:
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Normal acceleration (centripetal acceleration): αr = ω²r
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Tangential acceleration (Coriolis acceleration): αt = 2ωυ
The tangential acceleration generates the Coriolis force:
Fc = 2ωυδm
Since the Coriolis force is proportional to the mass flow rate, measuring this force allows direct mass flow measurement.
In practical applications, the flow meter does not rotate mechanically but uses tube vibration. A bent tube is fixed at both ends, and vibration at its natural frequency is applied.
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When no fluid flows, both sides of the tube vibrate synchronously without phase difference.
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When fluid flows, Coriolis forces are generated in opposite directions on the two sides of the tube.
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This causes a twist and produces a phase difference between the two sides.
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The phase difference is proportional to the mass flow rate.
By converting the Coriolis force into a measurable phase difference, the meter directly determines the mass flow rate.
