Bafs4000b Mass Gas Flow Sensor with 1-5 V Analog Output

• Customization: Available
• Structure Type: Measuring Core
• Measuring Medium: Gas
• Model NO.: BAFS4000B
• Certification: CE
• Customized: Customized
• Test Conditions: Vin=12±0.01VDC,Ta=25°c
• Relative Humidity: 40%<Relative Humidity<60%
• Temperature Range: -25ºC ~+85ºC
• Storage Temperature: -40ºC ~ 90ºC
• Humidity: 0~100%Rh
• Impact Resistant: 100g
• Supply Voltage (5): 8~18VDC

Product Description

BAFS4000B mass gas flow sensor is made of micro-electro-mechanical system (MEMS) flow sensor chip, which is suitable for clean and relatively dry gas measurement of various uses, realizing the digitalization, intelligence and high security of the equipment, and has the role and improvement of traditional industry innovation. Wide range of flow measurement range to meet the flow measurement needs of different equipment in the industry, high sensitivity, high reliability, high stability and low cost performance characteristics can promote the industry to energy saving and intelligent direction development.

BAFS4000 series products are based on MEMS traffic sensing unit, high precision digital processing and calibration circuit (MCU) composition, integrated high-resolution Delta-σ A/D converter and have internal calibration function Qun circuit and MCU processor together to ensure that the sensor signal real-time effective acquisition, obtain accurate traffic signal, And the corresponding compensation algorithm is processed internally, so there is no need to do any external calibration compensation, can ensure high precision flow output; Friendly digital output communication line, users can get corresponding data and information very easily; Product application range is very broad.

Charcteristics:

• The traffic ranges from 0SLPM to 300SLPM
• High accuracy (1.5% F.S accuracy)
• Linear output and temperature compensation
• Maintain long term stability with minimum zero drift
• Forward and reverse gas flow measurement
• Solid sensing core (no surface cavities or fragile film), resistant to clogging and pressure impact
• Analog output (1-5 V) (digital I2C communication output is available)
• Fast response time (20ms response time)
• The sensor is resistant to condensation

Application
• ventilator /respirator
• Oxygen generator
• Gas mask and respirator
• Spray
• Continuous positive airway pressure (CPAP) devices
• Anesthesia delivery
• Leak detection
• The spectrometer
• Mass flow controller
• Environmental climate control
• Fuel cell control

Product Parameters

Test conditions	VIN=12±0.01VDC,Ta=25°C
Relative humidity	40%<relative humidity<60%
Temperature range	-25ºC ~+85ºC
Storage temperature	-40ºC ~ 90ºC
Humidity	0~100%RH
Impact resistant	100g
Analog voltage output (3)	1~5VDC
Supply voltage (5)	8~18VDC
Zero voltage	0.95...1~1.05VDC
Zero drift	0.2%F.S
Resolution (4)	0.1%F.S
Load	100KΩ
Precision	1.5%F.S
Response time	20ms
Supply current	20~30mA
Whole material	Silicon carbide, epoxy resin, polyphenylene sulfide, FR4, silicon as seal
	Flow range	Unit	Maximum flow rate (m/s)
BAFS4003BV	-12 ~12	SLM	0.527
BAFS4004BV	-20 ~20	SLM	0.877
BAFS4005BV	-35 ~35	SLM	1.535
BAFS4100BV	-50 ~50	SLM	2.193
BAFS4101BV	-100 ~100	SLM	4.387
BAFS4102BV	-150 ~150	SLM	6.58
BAFS4103BV	-200 ~200	SLM	8.773
BAFS4104BV	-300 ~300	SLM	13.16

NOTE:

1. The range between 10SLM and 300SLM can be customized

2. SLM: standard litres per minute. Standard conditions: 0ºC and 1 atmosphere

3. 0~3V output is also available

4. including temperature drift and linear error

5. 5V power supply voltage can be selected




 

Dimensions

 

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