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Mass flow meters and Controllers
- Low-cost Mass Flow Sensor
MODEL 3810S SERIES - The low-cost mass flow sensor products
The KOFLOC Low-Cost Mass Flow Sensor MODEL 3810S SERIES is the Kofloc's bestseller item. It is a low-cost mass flow sensor designed to function as an internal component of a larger system, with focus on low-cost, accuracy and adaptability.

KOFLOC MFS MODEL 3810S SERIES
Quick Review
• Low-Cost
The KOFLOC Low-Cost Mass Flow Sensor MODEL 3810S SERIES is a time-tested bestseller mass flow sensor intended to function as an internal device. Its low-cost is achieved through exhaustive cost-cutting methods with the final price approaching those of variable area flow meters.
• KOFLOC DependabilityKOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
• 0 to 5 V Analog Output
The KOFLOC Low-Cost Mass Flow Sensor MODEL 3810S SERIES is a mass flow device. It requires no temperature or pressure dependant compensations or calculations. 0 to 5 V analog output can also be used as a part of recording, control and alarm devices.
• Accuracy
The KOFLOC Low-Cost Mass Flow Sensor MODEL 3810S SERIES is a low-cost MFS, but it employs a bypass capillary mechanism and constant current thermal differential sensor that are commonly used in more expensive devices.
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KOFLOC Mass Flow Sensor MODEL 3810S SERIES may be used for the following gases.
Medium (gases): Actual gas calibration is available for the gas listed
Air
Argon Ar
Carbon dioxide CO2
Helium He
Hydrogen H2
Nitrogen N2
Oxygen O2
Medium (gases): N2 equivalent conversion factor (CF) is used for the gas listed. Contact KOFLOC for the availability of actual gas calibration.
Acetylene (Ethyne) C2H2
Ammonia NH3
Arsine AsH3
Boron trichloride BCl3
Boron trifluoride BF3
Butadiene (1,3-) C4H6
Butane C4H10
Butene (1-) C4H8
Butene (2-) (Cis) C4H8
Butene (2-) (Trans) C4H8
Carbonylsulfide COS
Carbon monoxide CO
Chlorine Cl2
Cyanogen C2N2
Cyclopropane C3H6
Deuterium D2
Diborane B2H6
Dichlorosilane SiH2Cl2
Dimethylamine C2H6NH
Dimethylether C2H6O
Disilane Si2H6
Ethane C2H6
Ethylene (Ethene) C2H4
Ethylchloride C2H5Cl
Freon-113 C2Cl3F3
Freon-114 C2Cl2F4
Freon-115 C2ClF5
Freon-116 C2F6
Freon-12 CCl2F2
Freon-13 CClF3
Freon-13B1 CBrF3
Freon-14 CF4
Freon-22 CHClF2
Freon-C318 C4F8
Hydrogen bromide HBr
Hydrogen chloride HCl
Hydrogen cyanide HCN
Hydrogen iodide HI
Iso-Butane C4H10
Isobutylene (Isobutene) C4H8
Krypton Kr
Methane CH4
Methylbromide CH3Br
Methylmercaptan CH3SH
Monomethylamine CH3NH2
Neon Ne
Nitric oxide NO
Nitrous oxide N2O
Ozone O3
Pentane C5H12
Phosgene COCl2
Phosphine PH3
Propane C3H8
Propylene (Propene) C3H6
Silane SiH4
Sulfur dioxide SO2
Sulfur hexafluoride SF6
Trimethylamine C3H9N
Xenon Xe
KOFLOC Mass Flow Sensor MODEL 3810S SERIES may NOT be used for the following gases.
Medium (gases)
Bromine pentafluoride BrF5
Carbon disulfide CS2
Chlorine trifluoride ClF3
Cyanogen chloride ClCN
Dibromo difluoromethane Br2CF2
Ethylene oxide C2H4O
Fluorine F2
Freon-11 CCl3F
Freon-21 CHCl2F
Hydrogen fluoride HF
Hydrogen sulfide H2S
Methylchloride CH3Cl
Nitrogen dioxide NO2
Nitrogen trifluoride NF3
Vinylchloride C2H3Cl
Vinylfluoride C2H3F
Note: If you did not find the right gas, please contact KOFLOC for more information.
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• Low-Cost
The KOFLOC Low-Cost Mass Flow Sensor MODEL 3810S SERIES is a time-tested bestseller mass flow sensor intended to function as an internal device. Its low-cost is achieved through exhaustive cost-cutting methods with the final price approaching those of variable area flow meters.
• KOFLOC DependabilityKOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
• 0 to 5 V Analog Output
The KOFLOC Low-Cost Mass Flow Sensor MODEL 3810S SERIES is a mass flow device. It requires no temperature or pressure dependant compensations or calculations. 0 to 5 V analog output can also be used as a part of recording, control and alarm devices.
• Accuracy
The KOFLOC Low-Cost Mass Flow Sensor MODEL 3810S SERIES is a low-cost MFS, but it employs a bypass capillary mechanism and constant current thermal differential sensor that are commonly used in more expensive devices.
TOP
KOFLOC Mass Flow Sensor MODEL 3810S SERIES may be used for the following gases.
Medium (gases): Actual gas calibration is available for the gas listed
Air
Argon Ar
Carbon dioxide CO2
Helium He
Hydrogen H2
Nitrogen N2
Oxygen O2
Medium (gases): N2 equivalent conversion factor (CF) is used for the gas listed. Contact KOFLOC for the availability of actual gas calibration.
Acetylene (Ethyne) C2H2
Ammonia NH3
Arsine AsH3
Boron trichloride BCl3
Boron trifluoride BF3
Butadiene (1,3-) C4H6
Butane C4H10
Butene (1-) C4H8
Butene (2-) (Cis) C4H8
Butene (2-) (Trans) C4H8
Carbonylsulfide COS
Carbon monoxide CO
Chlorine Cl2
Cyanogen C2N2
Cyclopropane C3H6
Deuterium D2
Diborane B2H6
Dichlorosilane SiH2Cl2
Dimethylamine C2H6NH
Dimethylether C2H6O
Disilane Si2H6
Ethane C2H6
Ethylene (Ethene) C2H4
Ethylchloride C2H5Cl
Freon-113 C2Cl3F3
Freon-114 C2Cl2F4
Freon-115 C2ClF5
Freon-116 C2F6
Freon-12 CCl2F2
Freon-13 CClF3
Freon-13B1 CBrF3
Freon-14 CF4
Freon-22 CHClF2
Freon-C318 C4F8
Hydrogen bromide HBr
Hydrogen chloride HCl
Hydrogen cyanide HCN
Hydrogen iodide HI
Iso-Butane C4H10
Isobutylene (Isobutene) C4H8
Krypton Kr
Methane CH4
Methylbromide CH3Br
Methylmercaptan CH3SH
Monomethylamine CH3NH2
Neon Ne
Nitric oxide NO
Nitrous oxide N2O
Ozone O3
Pentane C5H12
Phosgene COCl2
Phosphine PH3
Propane C3H8
Propylene (Propene) C3H6
Silane SiH4
Sulfur dioxide SO2
Sulfur hexafluoride SF6
Trimethylamine C3H9N
Xenon Xe
KOFLOC Mass Flow Sensor MODEL 3810S SERIES may NOT be used for the following gases.
Medium (gases)
Bromine pentafluoride BrF5
Carbon disulfide CS2
Chlorine trifluoride ClF3
Cyanogen chloride ClCN
Dibromo difluoromethane Br2CF2
Ethylene oxide C2H4O
Fluorine F2
Freon-11 CCl3F
Freon-21 CHCl2F
Hydrogen fluoride HF
Hydrogen sulfide H2S
Methylchloride CH3Cl
Nitrogen dioxide NO2
Nitrogen trifluoride NF3
Vinylchloride C2H3Cl
Vinylfluoride C2H3F
Note: If you did not find the right gas, please contact KOFLOC for more information.
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Features
Rohs compliance
Light compact build
Free mounting position
Wide selection of fittings, seals, wetted materials and connections
Easy maintenance
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Light compact build
Free mounting position
Wide selection of fittings, seals, wetted materials and connections
Easy maintenance
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Applications
Air sampling
Analyzer component
Bioreactor
Biotechnological process
Burn control
CCFL manufacturing
Chamber pressure control
Chemical process
Environment monitoring
Electronic device manufacturing
Food production
Fuel cell testing
Fermentation process
Gas blending
Gas distribution
Gas flow monitoring
Gas generation
Industrial furnace
Leak testing
Pharmaceutical process
Pollution monitoring
Process flow control
R&D
Solar power element manufacturing
Purge gas measurement
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Analyzer component
Bioreactor
Biotechnological process
Burn control
CCFL manufacturing
Chamber pressure control
Chemical process
Environment monitoring
Electronic device manufacturing
Food production
Fuel cell testing
Fermentation process
Gas blending
Gas distribution
Gas flow monitoring
Gas generation
Industrial furnace
Leak testing
Pharmaceutical process
Pollution monitoring
Process flow control
R&D
Solar power element manufacturing
Purge gas measurement
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Standard Specifications
| Flow range(at N2 calibration conditions) | F.S.10~2SLM | F.S.3~50SLM |
|---|---|---|
| Accuracy | Within±3.0%F.S. | Within±5.0%F.S. |
| Repeatability | Within±0.5%F.S. | |
| Proof pressure | 980kPa | |
| Working temperature range | 5 to 45°C(Accuracy guarantee:15 to 35°C | |
| Materials of parts in contact w/gases | Body:SUS 303,PTFE | |
| Seals:VitonTM | ||
| Joint | Standard:1/4RC | |
| Flow output signals | 0~5VDC | |
| Required power supply | +15VDC(±5%)40mA, -15VDC(±5%)10mA | |
| Weight | 250g | 350g |
Cable Connections
| No.1 | Power source +15VDC |
|---|---|
| No.2 | Power source COM |
| No.3 | Power source -15VDC |
| No.4 | Flow output 0~5VDC |
| No.5 | Flow output COM |
Note: The Series 3810 pin assignment has been modeified from March 2000, and is not compatible with the old model. Please check the following:
AMP171826-5 on the Connector 3810 side
AMP171822-5 on the cable side
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AMP171826-5 on the Connector 3810 side
AMP171822-5 on the cable side
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