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Henan Hanwei Electronics Co. Ltd
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Air Mass Flow Sensor, Suitable for Medical Respirators and Ventilators

Henan Hanwei Electronics Co. Ltd

City: zhengzhou

Province/State:henan

Country/Region:china

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Air Mass Flow Sensor, Suitable for Medical Respirators and Ventilators

Delivery Time : within 6 working days(depends on your quantity)

Brand Name : Hanwei

Main Export Markets : AsiaAustralasiaCentral/South AmericaEastern EuropeMid East/AfricaNorth AmericaWestern Europe

Place of Origin : China (mainland)

Model Number : FM series

Sample Price : Depending on the products

Category : Flow Sensors

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Key Specifications/Special Features:

  • Air mass flow consists of two thermopiles and a heating resistance, thermopiles symmetrically distributed upstream and downstream of heating resistance
  • The hot junctions of the thermopiles and the heating resistance on a thermal isolation base, generates an output voltage proportional from temperature gradient that between its hot and cold junctions, that is self energy Seebeck effect
  • Applications:
    • Air mass flow in HVAC and automotive application
    • Medical respirators and ventilators
    • Gas analyzer
    • Gas calibration
  • Performance:
    • Sensitive extremely for low rates and micro-differential pressure
    • No offset and offset drift
    • Fast response (less than 10ms)
    • Resistant to corrosive gases and attrition
    • Resistant to vibration and high pressure (more 15 atmosphere pressure)
    • Simplified signal conditioning circuits
  • Advantage:
    • The thermopile generates voltage output without biasing
    • As a result, there is no offset, offset drift or interference from power supply
    • The unique thermal isolation design does not require thin membrane or surface cavity
    • As a result, the die can withstand pressure shock, and can be coated with ceramic film that protect it from corrosive gases/liquids and abrasive wear
    • The sensor to be used for liquid flow measurement
  • Performance specifications:
    • Parameter minimum/typical/maximum unit:
      • Full scale: 1,000sccm
      • Zero drift: ±0.1mv
      • Output voltage drift: ±1% F.S
      • Repeatability/hysteresis: 1% F.S
      • Heating current: 6mA (constant current)
      • Heating power: 95mW (constant power)
      • Heating resistance: 2,570, 2,690, and 2810Ω
      • Zero thermal drift: 0.8% FS
      • Reference resistor: TCR -578Ppm/C
      • Upstream thermopile output air: 25C, 149, 165, and 171mV
      • Downstream thermopile output air: 25C, 149, 165, and 171mV
      • Operating temperature: -10 to 80°C
      • Response time: less than 10ms
      • Overpressure more than 15/217bar (psi)
      • Connection
Primary Competitive Advantages:
  • Quality Approvals
  • Reputation
  • Service
  • Product Performance
  • Small Orders Accepted
  • Prompt Delivery

China Air Mass Flow Sensor, Suitable for Medical Respirators and Ventilators wholesale

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