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E-mail:sales@brightstonemems.cn

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MEMS Flow Sensors
MSFM4000 thermal film air-mass sensors

Ventilator; Oxygen generator; Gas mask and respirator; Sprayer; Continuous positive airway pressure (CPAP) equipment; Applications: Anesthesia delivery; Detect leaks; Spectrograph; Mass flow controller; Environmental climate control.

Features

  • Wide flow range: 0-500SLPM

  • High accuracy (1.5%F.S accuracy)

  • Linear output and temperature compensation

  • Maintain long-term stability with minimal zero drift

  • Solid sensing core (no surface cavity or fragile film), resistant to clogging and pressure shock

  • Analog output (1 to 5V) (digital I2C communication output can be provided)

  • Fast response time (9ms/20ms/60m sresponse time)


Main Applications

Ventilator; Oxygen generator; Gas mask and respirator; Sprayer; Continuous positive airway pressure (CPAP) equipment; Anesthesia delivery; Detect leaks; Spectrograph; Mass flow controller; Environmental climate control.


Maximum Value

Operating temperature:-25℃~85℃

Storage temperature: -40℃~99℃

Humidity: 0~100%RH*

Shock resistance: 100g

The sensor is resistant to condensation.


Electrical Characteristics

Test condition: VIN=12±0.01VDC, Ta=25

Relative humidity: 40%<relative temperature<60%

Maximum operating temperature range: -25℃~85℃

Flow Range

Unit

Remark

MSFM4003V

0-12

SLM

0.525

MSFM4004V

0-20

SLM

0.872

MSFM4005V

0-35

SLM

1.51

MSFM4100V

0-50

SLM

2.18

MSFM4101V

0-100

SLM

4.37

MSFM4102V

0-150

SLM

6.56

MSFM4103V

0-200

SLM

8.76

MSFM4104V

0-300

SLM

13.14

MSFM4105V

0-500

SLM

35.3

Specifications

Min

Normal Value

Max

Unit

Analog voltage output

1

__

2000

VDC

Zero voltage

0.95

1

24

VDC

Zero Drift

__

__

15

%F.S

Load

__

5

5.02

kΩ

Precision

__

1.5

2

%F.S

Response Time

__

20

30

mSec

Supply voltage

8

0.1

__

VDC

Power Supply

20

20

30

mA

Resolution

__

0.1

__

%F.S

Overall Material

Silicon carbide, epoxy resin, polyphenylene sulfide, FR4, Use silicon as a sealing material

1.Customizable range between 10SLPM and 50SLPM;

2.SLM:Standard liters per minute. Standard conditions: 0℃ and 1 atmosphere;

3.In addition, the bidirectional air flow test can be customized to simulate the corresponding changes in the output, F (min) -F (max) corresponds to 1-5V output, and 0 flow rate corresponds to 3V;

4.Including temperature drift and linear error;

5. 5V supply voltage is available.


Linear Output

1.Unidirectional Airflow Mode

Flow rate =[ (VOUT-1V) /4V]* flow range

For example, the CADS4103 has 200 SLM with a flow range. When the output voltage is 2.5V, the instantaneous flow rate is [ (2.5-1V) /4V*200SLM]=75 SLM

FS3_副本.png

2. Bidirectional Airflow Mode

Forward flow=[ (VOUT-3V) /2V]*flow range flow

Reverse flow=[ (3V-VOUT) /2V]*flow range flow










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