Maximum Ratings

Operating Temperature: -25°C to 85°C
Storage Temperature: -40°C to 90°C
Humidity: 0 to 100% RH
Impact Resistance: Withstands impacts up to 100 g
Condensate Resistance: Designed to withstand condensate

The CAFS3000 Series gas mass flow sensor utilizes a microelectromechanical system (MEMS) flow sensor chip, making it ideal for various applications involving the measurement and control of clean, relatively dry small gas flows. Its unique packaging technology ensures the product can handle a wide range of flow measurements, providing high sensitivity, reliability, stability, and cost-effectiveness.

Key Features and Benefits

High Precision and Accuracy:Accuracy: Boasts an impressive 1.5% Full Scale (F.S) accuracy, ensuring reliable and precise measurements.
Integrated Digital Processing:Advanced Calibration: Equipped with an integrated Δ-Σ A/D converter and internal calibration circuit. The MCU processor guarantees real-time data acquisition and accurate flow signals without the need for external calibration.Digital Output: Provides user-friendly digital output communication, allowing easy access to data.
Stability and Reliability:Long-Term Stability: Minimal zero-drift ensures stable performance over time.Solid-State Core: Features a robust sensing core without surface cavity rings, making it resistant to blockage and pressure impacts.
Versatile Outputs:Analog and Digital: Offers 1-5V analog output and an optional I2C digital output for flexible integration into various systems.
Fast Response Time:Response Time: Quick 1 ms response time, suitable for applications requiring rapid feedback.
Wide Flow Range:Flow Range: Capable of measuring flows from 0 to 3000 sccm, adaptable for a variety of needs.
Humidity Adaptability:Humid Gas Measurement: Can measure relatively humid gases, expanding its application scope.

Electrical Characteristics (Test Conditions: VIN = 12 ± 0.01VDC, Ta = 25°C, Relative Humidity: 40% < RH < 60%)

Specification	Min	Typical	Max	Unit	Remarks
Flow Range	0	—	3000	sccm	Customizable
Service Voltage	8	12	24	V
Current	—	15	20	mA
Max Voltage Output	4.94	5	5.02	V
Zero Point Voltage Output	0.98	1	1.02	V
Accuracy	—	1.5	2	%FS
Withstand Voltage	—	0.3	—	MPa	Customizable
Resolution Ratio	—	0.1	—	%	Full Scale
Response Time	20	30	—	ms
Zero Drift	—	0.2	—	%/Year	Full Scale
Temperature Drift	—	—	4	%	0°C - 50°C
Materials	Silicon carbide, epoxy resin, PS, FR 4, silicon as sealing material

This product is designed to cater to a broad range of applications, ensuring high performance and reliability in gas flow measurement and process control.