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Designing Battery Powered Air Quality Solutions?

Keep reading… we did the math for you!

Breathing clean air is essential to a long healthy life and should be viewed in a manner similar to drinking clean water. Given that we spend the majority of our time indoors, indoor air quality (IAQ) is coming into focus as something that needs to be measured, controlled and optimized. As such, our buildings are not “ready” for the widespread implementation of air quality sensors without significant investment in upgrading the building infrastructure.

Innovators in the building automation space are accelerating the development of solutions that can measure IAQ in near real-time, analyze the IAQ trends and optimize the air we breathe. To remove one of the major cost barriers in implementing these solutions, there has been an increased focus on battery powered devices as these devices reduce the capital required to bring IAQ measurements into the building.

PM2105L Low Power Particulate Matter Sensor

The PM2105L is a laser scattering measurement technology that can provide mass concentration output measurements as well as a particle count measurement.

Additional Features:

  • Sensor can be repeatedly be powered on / off
  • Stable performance within 4 seconds after power on
  • PM1.0, PM2.5, PM10 mass concentration output
  • 0.3µm, 0.5 µm, 1.0 µm, 2.5 µm, 5.0 µm, 10.0 µm particle count output
  • Calibrated to the GRIMM standard (TSI available)
  • UART and I2C communication interface
  • 14+ years lifetime

Example designs from Cubic Sensors & Instruments have calculated the battery life for some common applications using AA batteries as the power source. These calculations have shown that the AA battery life can be optimized to achieve close to 3 years of battery life!

The battery life is dependent on the number of AA battery cells and the measurement interval of the PM2105L. Here are some examples of how the number of battery cells and measurement period impact the battery life:

4 AA Batteries

  • 4 sequential readings every 10 minutes – 1.10 years battery life
  • 4 sequential readings every 20 minutes – 2.03 years battery life
  • 4 sequential readings every 30 minutes – 2.91 years battery life

3 AA Batteries

  • 4 sequential readings every 10 minutes – 0.80 years battery life
  • 4 sequential readings every 20 minutes – 1.53 years battery life
  • 4 sequential readings every 30 minutes – 2.18 years battery life

2 AA Batteries

  • 4 sequential readings every 10 minutes – 0.55 years battery life
  • 4 sequential readings every 20 minutes – 2.03 years battery life
  • 4 sequential readings every 30 minutes – 1.45 years battery life

CM1106SL-NS Low Power CO2 Sensor

The CM1106SL-NS is the next generation of NDIR sensors specifically designed for battery powered applications without sacrificing measurement accuracy.

The integrated ABC algorithm ensures that the sensor is providing reliable CO2 measurement for over 15 years.

Additional Features:

  • Range: 0-5000ppm
  • +/-40ppm +3% with dynamic averaging
  • 37uA current consumption with 2-minute measurement cycle
  • 74uA current consumption with 1-minute measurement cycle

Example designs from Cubic Sensors & Instruments have calculated the battery life for some common applications using AA batteries as the power source. These calculations have shown that the AA battery life can be optimized to achieve close to 7+ years of battery life!

The battery life is dependent on the number of AA battery cells and the measurement interval of the CM1106SL-NS. Here are some examples of how the number of battery cells and measurement period impact the battery life:

3 AA Batteries

  • 6 sequential readings every 2 minutes – 1.91 years battery life
  • 6 sequential readings every 5 minutes – 4.25 years battery life
  • 6 sequential readings every 10 minutes – 7.18 years battery life

2 AA Batteries

  • 6 sequential readings every 2 minutes – 1.27 years battery life
  • 6 sequential readings every 5 minutes – 2.83 years battery life
  • 6 sequential readings every 10 minutes – 4.79 years battery life

1 AA Battery

  • 6 sequential readings every 2 minutes – 0.64 years battery life
  • 6 sequential readings every 5 minutes – 1.42 years battery life
  • 6 sequential readings every 10 minutes – 2.39 years battery life

Contact Us To Learn More!

Tony Nowak

President

630 222 5835

tony.nowak@innovaertech.com

Don O’Brien

Vice President

224 297 1925

don.obrien@innovaertech.com

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