KS500 Coriolis Mass Flow Meter
Summary:
The Coriolis mass flow meter is a type of mass flow meter that operates on the principle of the Coriolis force—the modulating effect of fluid mass flow on the oscillation of a vibrating tube—to measure mass flow. It is used in high-accuracy metrology applications, providing direct measurement of mass flow and real-time density. In addition to its high accuracy, excellent repeatability, and outstanding stability, this instrument features a flow path devoid of any flow-obstructing elements or moving parts, resulting in superior reliability and long service life. It can measure a wide range of fluids, including highly viscous liquids, slurries containing solid particles, liquids with trace amounts of gas, and medium-to-high-pressure gases with sufficient density. The vibration amplitude of the measuring tube is minimal, effectively treating it as a non-moving component, and the flow path contains no obstructions or moving parts. The meter is insensitive to non-uniform inlet velocity profiles, eliminating the need for straight pipe sections upstream and downstream, and its measurements are largely unaffected by fluid viscosity; moreover, variations in fluid density have only a negligible impact on the measured values. Consequently, its applications are increasingly widespread across industries such as petroleum, chemical processing, metallurgy, building materials, papermaking, pharmaceuticals, food, bioengineering, energy, and aerospace.
Keywords:
Category:
The Coriolis mass flow meter is a type of mass flow meter that operates on the principle of the Coriolis force—the modulating effect of fluid mass flow on the oscillation of a vibrating tube—to measure mass flow. It is used in high-accuracy metrology applications, providing direct measurement of mass flow and real-time density. In addition to its high accuracy, excellent repeatability, and outstanding stability, this instrument features a flow path devoid of any flow-obstructing elements or moving parts, resulting in superior reliability and long service life. It can measure a wide range of fluids, including highly viscous liquids, slurries containing solid particles, liquids with trace amounts of gas, and medium-to-high-pressure gases with sufficient density. The vibration amplitude of the measuring tube is minimal, effectively treating it as a non-moving component, and the flow path contains no obstructions or moving parts. The meter is insensitive to non-uniform inlet velocity profiles, eliminating the need for straight pipe sections upstream and downstream, and its measurements are largely unaffected by fluid viscosity; moreover, variations in fluid density have only a negligible impact on the measured values. Consequently, its applications are increasingly widespread across industries such as petroleum, chemical processing, metallurgy, building materials, papermaking, pharmaceuticals, food, bioengineering, energy, and aerospace.
Detailed introduction
Product Features
· Directly measure the mass flow rate and density of the fluid in the pipeline.
· Extremely high measurement accuracy (0.2%–0.1%) and excellent low-temperature performance.
· Wide range of applications (capable of measuring various non-Newtonian fluids, slurries, suspensions, high-viscosity fluids, and more).
· Low installation requirements (minimal straight-run pipe lengths required upstream and downstream of the instrument).
· The flowmeter’s pipeline contains no moving parts, ensuring reliable and stable operation with a low maintenance rate.
Technical Specifications
| Product Name | KS500 Coriolis Mass Flow Meter |
| Nominal Diameter (mm) | 3 ~ 300 |
| Structural Form and Medium Temperature Range | Integrated type: (-50 ~ +200) °C Split-type: (-50 ~ +200) °C High-temperature split-type: (-50 ~ +350) °C Low-temperature split-type: (-200 ~ +125)°C |
| Sensor | U-shaped sensor, short U-shaped sensor, micro-bend sensor, ultra-micro-bend sensor |
| Transmitter | Digital transmitter |
| Explosion-proof | Explosion-proof |
| Operating voltage | Adaptive to DC 24V, AC 220V, and 24V DC/220V AC |
| Nominal pressure (MPa) | 1.6, 2.5, 4.0, and 6.3; certain models can be customized for ultra-high pressure ratings (10.0, 16.0, and 25.0) MPa. |
| Output signal | Pulse signal, (4–20 mA) current signal |
| Digital Communication | RS-485 Modbus, HART |
| Accuracy Class | Class 0.1, Class 0.15, Class 0.2, Class 0.5 |
| Protection Level | IP65, IP66, IP67 |
| EMI level | Complies with IEC 61326 (Industrial) Electromagnetic Compatibility Directive |
| Hygienic | Hygienic instruments can be manufactured according to customer requirements. |
| Insulated jacket type | An insulation jacket can be added upon customer request. |
| Process Connection | GB/T 9115-2010; can be manufactured according to customer-specified standards. |
Flow range
U-shaped sensor matched with a digital transmitter for measuring the flow range of the medium
Nominal diameter (mm) | Measurable flow range (kg/h) | 0.1 and 0.15 class flow ranges (kg/h) | Class 0.2 flow range (kg/h) | Class 0.5 flow range (kg/h) | Zero-point stability (kg/h) |
| 3 | 1.2–120 | 10–120 | 8–120 | 6–120 | 0.004 |
| 8 | 8 to 800 | 80 to 800 | 60–800 | 40–800 | 0.02 |
| 10 | 10–1000 | 100–1000 | 70–1000 | 50–1000 | 0.03 |
| 15 | 20–3000 | 300–3000 | 200–3,000 | 150–3000 | 0.07 |
| 25 | 80 to 8000 | 800–8,000 | 600–8,000 | 400–8,000 | 0.15 |
| 40 | 240–32,000 | 2,500–32,000 | 2000–32,000 | 1500–32,000 | 0.9 |
| 50 | 500–50,000 | 3,500 to 50,000 | 2,500–50,000 | 2,000 to 50,000 | 1.5 |
| 80 | 800–140,000 | 80,000 to 140,000 | 70,000 to 140,000 | 60,000 to 140,000 | 3.5 |
| 100 | 1,500 to 200,000 | 15,000 to 200,000 | 12,000 to 200,000 | 10,000 to 200,000 | 7 |
| 150 | 5,000 to 500,000 | 50,000 to 500,000 | 35,000 to 500,000 | 28,000 to 500,000 | 17 |
| 200 | 10,000 to 1,200,000 | 200,000 to 1,200,000 | 120,000 to 1,200,000 | 80,000 to 1,200,000 | 45 |
| 300 | 25,000 to 2,500,000 | 500,000 to 2,500,000 | 300,000 to 2,500,000 | 200,000 to 2,500,000 | 70 |
Flow range of the measuring medium for short U-shaped (D-type) sensors matched with digital transmitters
Nominal diameter (mm) | Measurable flow range (kg/h) | 0.1 and 0.15 class flow ranges (kg/h) | Class 0.2 flow range (kg/h) | Class 0.5 flow range (kg/h) | Zero-point stability (kg/h) |
| 3 | 1.2–120 | 10–120 | 8–120 | 6–120 | 0.004 |
| 8 | 8 to 800 | 80 to 800 | 60–800 | 40–800 | 0.02 |
| 10 | 10–1000 | 100–1000 | 70–1000 | 50–1000 | 0.03 |
| 15 | 20–4000 | 400–4000 | 300–4000 | 200–4000 | 0.07 |
| 25 | 80–12,000 | 600–12,000 | 400–12,000 | 300–12,000 | 0.15 |
| 40 | 240–32,000 | 4,000 to 32,000 | 2,500–32,000 | 16,000 to 32,000 | 0.9 |
| 50 | 500–50,000 | 5,000 to 50,000 | 3,500 to 50,000 | 2,500–50,000 | 1.5 |
| 80 | 800–160,000 | 16,000 to 160,000 | 12,000 to 160,000 | 80,000 to 160,000 | 3.5 |
| 100 | 1,500 to 200,000 | 20,000 to 200,000 | 14,000 to 200,000 | 10,000 to 200,000 | 7 |
| 150 | 5,000 to 600,000 | 60,000 to 600,000 | 40,000 to 600,000 | 30,000 to 600,000 | 17 |
| 200 | 10,000 to 1,200,000 | 300,000 to 1,200,000 | 200,000 to 1,200,000 | 100,000 to 1,200,000 | 45 |
| 300 | 25,000 to 2,500,000 | 500,000 to 2,500,000 | 250,000 to 2,500,000 | 125,000 to 2,500,000 | 70 |
Flow range of the medium measured by a micro-bend (W-type) sensor matched with a digital transmitter
Nominal diameter (mm) | Measurable flow range (kg/h) | 0.1 and 0.15 class flow ranges (kg/h) | Class 0.2 flow range (kg/h) | Class 0.5 flow range (kg/h) | Zero-point stability (kg/h) |
| 8 | 8 to 800 | 80 to 800 | 55–800 | 40–800 | 0.035 |
| 10 | 10–1000 | 100–1000 | 70–1000 | 50–1000 | 0.045 |
| 15 | 20–3000 | 300–3000 | 200–3,000 | 150–3000 | 0.09 |
| 25 | 80 to 8000 | 600–8,000 | 400–8,000 | 300–8,000 | 0.25 |
| 40 | 240–24,000 | 2,400 to 24,000 | 1200–24,000 | 1000–24,000 | 1 |
| 50 | 500–45,000 | 5,000 to 45,000 | 2,500–45,000 | 2,000 to 45,000 | 2 |
| 80 | 800–120,000 | 10,000 to 120,000 | 80,000 to 120,000 | 60,000 to 120,000 | 3.5 |
| 100 | 1,500 to 200,000 | 20,000 to 200,000 | 15,000 to 200,000 | 10,000 to 200,000 | 7 |
| 150 | 5,000 to 500,000 | 50,000 to 500,000 | 35,000 to 500,000 | 30,000 to 500,000 | 23 |
| 200 | 10,000 to 1,000,000 | 100,000 to 1,000,000 | 70,000 to 1,000,000 | 50,000 to 1,000,000 | 45 |
| 250 | 15,000 to 1,500,000 | 150,000 to 1,500,000 | 120,000 to 1,500,000 | 75,000 to 1,500,000 | 70 |
Flow range of the measuring medium for ultra-micro-bend (Type C) sensors matched with digital transmitters
Nominal diameter (mm) | Measurable flow range (kg/h) | 0.1 and 0.15 class flow ranges (kg/h) | Class 0.2 flow range (kg/h) | Class 0.5 flow range (kg/h) | Zero-point stability (kg/h) |
| 50 | 500–50,000 | 5,000 to 40,000 | 2,500–40,000 | 2,000 to 50,000 | 2 |
| 80 | 800–120,000 | 10,000 to 120,000 | 80,000 to 120,000 | 60,000 to 120,000 | 3.5 |
| 100 | 1,500 to 200,000 | 20,000 to 200,000 | 15,000 to 200,000 | 10,000 to 200,000 | 7 |
| 150 | 5,000 to 500,000 | 50,000 to 500,000 | 35,000 to 500,000 | 30,000 to 500,000 | 23 |
Select Parameters
| Nominal Diameter (mm) | Measurable flow range (kg/h) | 0.1, 0.15 class flow range (kg/h) | Class 0.2 flow range (kg/h) | Class 0.5 flow range (kg/h) | Zero-point stability |
| 3 | 1.2–120 | 10–120 | 8–120 | 6–120 | 0.004 |
| 8 | 8 to 800 | 80 to 800 | 60–800 | 40–800 | 0.02 |
| 10 | 10–1000 | 100–1000 | 70–1000 | 50–1000 | 0.03 |
| 15 | 20–3000 | 300–3000 | 200–3,000 | 150–3000 | 0.07 |
| 25 | 80 to 8000 | 800–8,000 | 600–8,000 | 400–8,000 | 0.15 |
| 40 | 240–32,000 | 2,500–32,000 | 2000–32,000 | 1500–32,000 | 0.9 |
| 50 | 500–50,000 | 3,500 to 50,000 | 2,500–50,000 | 2,000 to 50,000 | 1.5 |
| 80 | 800–140,000 | 80,000 to 140,000 | 70,000 to 140,000 | 60,000 to 140,000 | 3.5 |
| 100 | 1,500 to 200,000 | 15,000 to 200,000 | 12,000 to 200,000 | 10,000 to 200,000 | 7 |
| 150 | 5,000 to 500,000 | 50,000 to 500,000 | 35,000 to 500,000 | 28,000 to 500,000 | 17 |
| 200 | 10,000 to 1,200,000 | 200,000 to 1,200,000 | 120,000 to 1,200,000 | 80,000 to 1,200,000 | 45 |
| 300 | 25,000 to 2,500,000 | 500,000 to 2,500,000 | 300,000 to 2,500,000 | 200,000 to 2,500,000 | 70 |
Use a U-shaped sensor paired with a digital transmitter to measure the flow range of the medium.
Customizable corrosion-resistant enclosure for special environments
Customizable large-diameter pipes, DN125–DN250
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