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Asair AFM3100 Flow Sensor - Bidirectional Mass Flow, Temperature & Humidity Measurement

â‚č9,259.00 (Inclusive of all taxes)
Out of Stock

The Asair AFM3100 is a high-precision bidirectional mass flow sensor designed for measuring air, oxygen, and other non-corrosive gases. It integrates a thermal sensor chip and CMOS microprocessor for accurate flow, temperature, and humidity readings, making it suitable for integration with industrial PLCs, environmental monitoring systems, and fuel cell controllers.

Features

  • Bidirectional mass flow measurement from -200 to +200 SLM
  • Integrated temperature and humidity sensing capability
  • Low-pressure loss design for minimal system impact
  • Features full calibration and temperature compensation
  • Compact form factor for versatile system integration

Out of stock

Description

The AFM3100 mass flow sensor utilizes a proprietary thermal sensing principle, where a MEMS-based sensor chip measures the heat transfer caused by gas flow. This data is processed by an integrated high-performance CMOS microprocessor with a 24-bit ADC, ensuring high-resolution signal acquisition. The sensor’s specially designed air duct minimizes pressure loss, preserving system efficiency while enabling accurate measurement in demanding environments.

Engineered for stability, the sensor features low zero-point drift and fast response times. It provides fully calibrated, temperature-compensated output for mass flow rate, alongside simultaneous temperature and humidity readings of the gas stream. This multi-parameter output makes it a comprehensive solution for precise gas monitoring and control applications.

Key Features

  • Bidirectional flow measurement with a range of ±200 standard liters per minute (SLM)
  • Integrated thermal MEMS sensor chip and 24-bit ADC for high-accuracy data acquisition
  • Simultaneously outputs mass flow rate, gas temperature, and relative humidity
  • Optimized air duct geometry for low pressure loss and high system efficiency
  • Full factory calibration and on-chip temperature compensation ensure measurement stability
  • Fast response time suitable for dynamic flow control applications
  • Compact and robust construction for reliable operation in various environments

Applications

  • Ventilator and respiratory equipment for precise air flow control
  • Environmental monitoring systems for HVAC and building automation
  • Fuel control and metering systems in industrial burners
  • Fuel cell system management for anode/cathode gas flow regulation
  • Process control and instrumentation in laboratory equipment

Technical Specifications

Model NumberAFM3100
Measurement Range (Flow)-200 ~ +200 SLM
Measurement Accuracy (Flow)±1.5% of reading
Measured ParametersMass Flow, Gas Temperature, Gas Humidity
Working Current< 45 mA
Output InterfaceAnalog Voltage / Digital (I2C) *
Sensing PrincipleThermal (MEMS)
Gas CompatibilityAir, Oxygen, Non-corrosive gases

Frequently Asked Questions

What is the output interface of the Asair AFM3100 flow sensor?

The Asair AFM3100 typically provides a digital I2C interface for reading mass flow, temperature, and humidity data, allowing for easy integration with microcontrollers like Arduino, Raspberry Pi, or industrial PLCs. Some variants may also offer an analog voltage output proportional to the flow rate. Always check the specific product documentation for the exact pinout and communication protocol.

Can this sensor measure flow in both directions?

Yes, the AFM3100 is a bidirectional sensor with a measurement range from -200 to +200 SLM. The sign of the reading indicates flow direction. This feature is essential for applications like ventilator breathing cycles or any system where gas may flow in reverse.

What gases is the AFM3100 compatible with?

The sensor is designed for clean, dry, non-corrosive gases such as air and oxygen. It is not suitable for corrosive, combustible, or moisture-saturated gases, as these can damage the internal MEMS thermal sensor. For specialized gas mixtures, consult the manufacturer's datasheet for compatibility and potential recalibration requirements.

Package Includes

  • 1 x Asair AFM3100 Flow Sensor

Additional Information

Weight 0.027 kg
Dimensions 5 × 5 × 1 cm