Kofloc 3810DSII SERIES Mass Flow Controllers

The Kofloc Model 3810DSII Series is engineered to provide professional-grade mass flow measurement at a fraction of the cost of complex industrial controllers.

 

Description

The Kofloc Model 3810DSII Series is engineered to provide professional-grade mass flow measurement at a fraction of the cost of complex industrial controllers. The standout feature of this series is its integrated display, which eliminates the need for expensive external readout units. The 3810DSII provides direct mass flow readings, meaning that unlike rotameters, its accuracy is not affected by fluctuations in gas temperature or pressure.

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A Mass Flow Controller (MFC) is a device used to precisely regulate and control gas mass flow in various industrial and laboratory processes. Unlike conventional flow meters, which only measure velocity or volume, an MFC can both measure and regulate gas flow based on mass, resulting in much more accurate results—especially in applications that require tight and consistent control, such as the semiconductor, pharmaceutical, chemical, and gas analysis industries.

The series typically follows a specific nomenclature based on your needs:

  • 3810DSII-O: Basic mass flow meter (no valve).
  • 3810DSII-V: Mass flow meter with an integrated needle valve.

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Maintenance & Usage Tips

  • Gas Quality: Ensure the gas is clean and dry. A 10-micron filter is recommended upstream to prevent particles from clogging the capillary sensor.
  • Orientation: For the most stable readings, the unit should be installed horizontally in a vibration-free environment.
  • Saturation Warning: Avoid flowing gas significantly higher than the Full Scale (F.S.) value. Thermal sensors can “saturate,” which may lead to an inversion phenomenon where the displayed value incorrectly decreases as the actual flow increases.

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Brand

Kofloc

Kofloc

The natural environment is preserved through the balance of solids, liquids and gases that exist on the earth. However, human civilization has caused pollution that has greatly damaged our environment. The task of the present generation is to restore our environment to its natural healthy state. And this is also the greatest challenge for 21st century science and technology.

KOFLOC's corporate motto is "A Scientific Approach for Fluids." In other words, we create products that scientifically measure and control the balance of liquids and gases. We trust that through our work we are making a contribution to the regeneration of the environment and to the establishment of a prosperous society.

Specifications

  • Sensor type Thermal sensor
  • Valve TYpe Proportional solenoid valve (normally closed)
  • Applicable gas N₂, Air, H₂, He, Ar, O₂, CO₂
  • Full-scale flow rate 10SCCM to 20SLM 21 to 100SLM
  • Accuracy ±2%F.S. (25℃)
  • TEmperature coefficient ±0,2%F.S. /”C (15 to 35℃)
  • Max. inlet pressure 500kPa(G)
  • Proof preasure 1MPa(G)
  • Allowable ambient temperature 0 to 50℃
  • Allowable storage temperature -10 to 60℃

Features

  • Integrated Dual Display: Real-time monitoring of instantaneous and totalized flow on a 4-digit LED.

  • Optional Needle Valve: Integrated precision valve for manual flow control (3810DSII-V).

  • Mass Flow Technology: Readings are independent of temperature and pressure variations.

Applications

  • Burner Calibration: Measuring precise gas flows for specialized flame research.

  • Environmental Sampling: Maintaining constant mass flow for air quality monitoring stations.

  • Pneumatic Leak Testing: Accurate detection of minute gas leakage in industrial components