Kofloc Model 3810S Mass Flow Sensor designed on the heritage base construction of the superior class bypass capillary type mass flow sensor, the Model 3810S Mass Flow Sensor centers the focus on the economy through a thorough effort towards streamlining with the view to built-in applications. The series is one of the KOFLOC best sellers and is used by many assembly manufacturers as a substitute for the existing float type (tapered pipe type) flow meter.

Standard Specifications

Flow range (N2 equivalent, 20℃/1 atm)
Sensor: Thermal mass flow sensor
Accuracy : ±2%F.S. (25℃) & ±5%F.S. (25℃)
Temperature coefficient :±0.15 F.S./℃ (15–35℃)±0.2 F.S./℃ (15–35℃)
Repeatability: ±0.5%F.S.
Proof pressure: 980 kPa (G)

Dimensions

Specifications relating to the flow range (e.g., flow range, accuracy, and response) are expressed in N2 or air equivalent. The product will be built with a primary pressure of 300 kPa or less and the secondary side open to the atmosphere. For details on the pressure requirements, please contact us.

Features

A low-cost, still, full-fledged sensor based on a combination of the constant-current temperature difference detection type with the bypass capillary type
A large cost reduction makes Model 3810S almost rival any ex-isting float type flow meter in price.
0 to 5VDC analog flow outputs provide various applications such as measurements recording, control and alarm issuance
The sensor is mass flow type. The user needs no troublesome calculations for flow correction due to the effects of tempera-ture and pressure.

Applications

Applicable gas：N2,Air,H2,He,Ar,O2,CO2 etc.
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

Specifications

Flow range (N2 equivalent, 20℃/1 atm)	10 SCCM–2 SLM (freely selectable)	3 SLM–50 SLM (freely selectable)
Sensor	Thermal mass flow sensor
Accuracy	±2%F.S. (25℃)	±5%F.S. (25℃)
Temperature coefficient	±0.15 F.S./℃ (15–35℃)	±0.2 F.S./℃ (15–35℃)
Repeatability	±0.5%F.S.
Proof pressure	980 kPa (G)
Allowable ambient temperature	5–45℃
Allowable ambient humidity	10–90% (No condensation allowed)
Materials of parts in contact with gases	Body: SUS303, PTFE
	Sealing: FKM (option: CR or NBR)
Electric connection	171826-5 (made by AMP)
Flow output signal	0–5 VDC (External load resistance: 250 kΩ or more)
Power supply	±15 VDC ±5%, 60 mA
Joint (Main unit bore)	Rc1/4
Weight	Approx. 250 g	Approx. 350 g

Dimension:

!!NOTE!!
Specifications relating to the flow range (e.g., flow range, accuracy and response) are expressed in N2 or air equivalent. The product will be built with the primary pressure of 300 kPa or less and the secondary side open to the atmosphere. For details on the pressure requirements, please contact us.