SI-20FD-HM High Accuracy Mass Flow Meter Ultra-Large Range

The SI-20FD-HM High Accuracy Mass Flow Meter boasts an ultra-large measurement range. Measurement range: 6000 SLM~20000 SLM, accuracy: ±0.5%. Response time: 0.1s. Capable of measuring a variety of gases.

Sino-Inst is committed to technological research and development as the foundation of its company’s growth, providing customers with professional services for the measurement and control of flow rates of gases, liquids, and critical fluids. Simultaneously, we have a dedicated R&D and customization department to meet the personalized customization needs of some customers, such as “small-batch non-standard operating conditions.”

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• Short delivery time
• Better price
• Customizable parameters

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Features

Specifications

Featured Applications

Mass flow controllers are highly accurate, fast, reliable, stable, and flexible flow measurement instruments. Employing thermal sensing technology, they measure flow by detecting the mass of molecules carried away by the split molecular stream. Since this measurement relies on thermal sensing, it remains unaffected by changes in gas temperature or pressure. These controllers are used for measuring and regulating the mass flow of gases.

It will find increasingly widespread application in petroleum processing, chemical engineering, and related fields, demonstrating significant potential in advancing flow measurement technology. This instrument combines detection and control functions, incorporating an electromagnetic or piezoelectric control valve alongside its measurement component. This configuration forms a closed-loop system for regulating fluid mass flow. Setpoints can be supplied via analog voltage, analog current, or computer/PLC interfaces.

Thermal mass flow controllers are extensively applied in the following industries:

1. Measurement and control of fuel gas mass flow in boilers and cracking furnaces;
2. Mass flow measurement of petrochemical, petroleum production, and flare gases;
3. Measurement and control of combustion furnace air mass flow; hydrogen mass flow and control in gas turbines;
4. Mass flow and control of gases in food processing and beverage production;
5. Chlorine mass flow control in water treatment plants;
6. High-purity gas mass flow measurement in semiconductor manufacturing processes;
7. Mass flow measurement of catalysts and chemical additives;
8. Pump protection control, pump seal monitoring, and lubricant sump leak detection;
9. HVAC system control;
10. Mass flow measurement of instrument air, process air, nitrogen, etc.;
11. Gas analyzers and atmospheric samplers;
12. Leak monitoring
13. Gas distribution systems
14. Laboratory gas measurement
15. Medical applications
16. Fuel cells

Mass Flow Controller Gas Correction Factor

Sino-Inst mass flow controllers and mass flow meters are generally calibrated with N2 at the factory. In actual use, if other gases are being used, reading correction may be necessary. This is done by multiplying the flow rate displayed on the flow meter by the flow conversion coefficient.

For single-component gases, the conversion coefficient can be found in the coefficient conversion table.

For a multi-component gas (assuming it consists of n gases), calculate its conversion using the following formula:

Coefficient C: Basic Formula: C = 0.3106N/ρ(Cp)

Where:
ρ—density of the gas under standard conditions
Cp—specific heat at isobaric pressure of the gas
N—molecular composition coefficient of the gas (related to the components of the gas molecules, see the table below)

For a gas mixture: N = N1(ω1/ωT) + N2(ω2/ωT) + … + Nn (ωn /ωT)

Where:
ω1…ωn—flow rate of the corresponding gas
ωT—flow rate of the gas mixture
ρ¹…ρn—density of the corresponding gas under standard conditions (values ​​see the gas conversion coefficient table)
Cρ¹…Cρn—specific heat at isobaric pressure of the corresponding gas (values ​​see the gas conversion coefficient table)
N1…Nn —These are the molecular composition coefficients for the corresponding gases; values ​​can be found in the Gas Molecular Composition Coefficients Table.

Notes:

1) Standard conditions: Pressure—101325 Pa (760 mmHg), Temperature—273.15 K (0℃).

2) For parameters of gases not listed in the Gas Mass Flow Rate Conversion Coefficients Table, please consult Sino-Inst.

Common Gas Correction Factors:

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Sino-Inst’s High Accuracy Mass Flow Meter is configurable with a large flow range of 6000 SLM to 20000 SLM for gas flow measurement and control. It is widely used in the glass, solar energy, petrochemical, coal metallurgy, gas production and distribution, and hydrogen energy industries.

We support customization of mass flow meters/controllers, including flow range, temperature, pressure, accuracy, and materials. Please feel free to contact our sales engineers!

Related Products

SI-20FD-HM High Accuracy Mass Flow Meter 6000～20000SLM

The SI-20FD-HM High Accuracy Mass Flow Meter boasts an ultra-large measurement range. Measurement range: 6000 SLM~20000 SLM, accuracy: ±0.5%. Response time: 0.1s. Capable of measuring a variety of gases.

Product SKU: SI-20FD-HM High Accuracy Mass Flow Meter Ultra-Large Range

Product Brand: Sino-Inst

Price Valid Until: 2099-09-09

Product In-Stock: PreOrder

Editor's Rating:
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