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Product Name:Mass Air Flow Sensor

Mass Air Flow Sensor

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Product Description:

PMF2000 Series Mass Air Flow Sensor Description
    PMF2000 features Posifas third-generation thermal flow die, benefiting from the latest innovations in microfabrication. The sensor die uses a pair of thermopiles to detect changes in temperature gradient caused by mass flow, delivering excellent signal-to-noise, and repeatability. The solid state thermal isolation structure on the sensor die eliminates the need for surface cavity or fragile membrane used in competing technologies, making the sensor resistant to clogging and pressure shock.
    The PMF2000 series includes the analog output PMF2000V and the digital I²C output PMF2000D.
    The supported max flow rate ranges from 200 sccm to 10 SLM. The sensors are temperature compensated over the temperature range of 0 to 50 °C. The linearized output provides maximum flexibility and ease-of-use. 
 
PMF2000 Series Mass Air Flow Sensor Features

• Unsurpassed performance in a robust and cost effective package
• Solid state sensing core (no surface cavity or fragile membrane) resistant to clogging and pressure shock
• Highly accurate (4% reading typ.)
• Fast response time (5 ms typ.)
• Linear output and temperature compensation
• Long-term stability with minimal null drif

 
PMF2000 Series Mass Air Flow Sensor Applications

• Oxygen concentrators
• Nebulizers
• CPAP equipment
• Leak detection
• Spectroscopy
• Mass flow controller
• Fuel cell control
• Environmental monitoring

 
PMF2000 Series Mass Air Flow Sensor Maximum Ratings

• Operating Temperature: -25 to 85 °C
• Calibrated Temperature Range: 0 to 50 °C
• Storage Temperature: -40 to 90 °C
• Humidity: 0 to 100% RH, non-condensing
• Shock: 100 g peak (5 drops, 3 axis)
• Operating Pressure: 25 psi

 
PMF2000 Series Mass Air Flow Sensor Specifications

Test Conditions: Vin=10±0.01VDC, Ta=25°C. Relative Humidity: 40%
SPECIFICATIONS	MIN	TYP	MAX	UNIT	CONDITIONS
PMF2101	0		200	sccm
PMF2102	0		1000	sccm
PMF2103	0		2000	sccm
PMF2104	0		3000	sccm
PMF2105	0		4000	sccm
PMF2108	0		10	SLM
Output Voltage (V)2	1 to 5			VDC
Null Voltage (V)	0.95	1	1.05	VDC
Output Count (D)	256 to 16124			Count
Null Count	156		356	Count
Null Drif			0.2	% F.S.	Per year
Repeatability		0.1		% F.S.
Accuracy3		1%		F.S.	0 to 25% F.S.
		4%		Reading	25 to 100% F.S.
Resolution (D)		14		Bit
Response Time4		5		mSec
Supply Voltage (V)	6	10	16	Vdc
Supply Voltage (D)	4.75	10	16	Vdc
Current		21	26	mA
Wetted Materials	Silicon carbide, epoxy, PPE+PE, FR4, and silicone as static seal

1. SLM: standard liter per minute. Standard conditions: 0 °C and 1 atmosphere.
2. V refers to the analog version of PMF2000, and D refers to the digital I2C version.
3. Maximum deviation in output from nominal over the entire calibrated flow range and temperature range. Errors include offset, full scale span,
linearity, flow hysteresis, repeatability and temperature effects over the compensated temperature range.
4. 10% to 90% rise time of the flow sensor to electrically respond to any mass flow change. May be affected by the pneumatic interface

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Company Profile:

• Main Product:

  Gas Sensor, Pressure Sensor, Humidity Sensor... etc

• Business Type:

  Distributor/Wholesaler

• Current Export Market:

  North America, South America, Western Europe, Eastern Europe, Eastern Asia, Southeast Asia, Mid East, Africa, Oceania

Factory Profile:

• Number of Employees:

  51 - 100 People