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Personal Ozone Monitor™

  • The world's smallest Ozone Monitor
  • Personal exposure monitoring for studies of health effects of air pollutants
  • Health and safety monitoring at industrial sites using ozone
  • UV Absorption at 254 nm
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Description

The World's Smallest Ozone Monitor

2B Tech has taken the next step in miniaturization of UV-based ozone monitors by developing the Personal Ozone Monitor or "POM". The basic POM unit has dimensions of 4 x 3 x 1.5 inches and weighs only 0.8 lb / 1.0 lb without/with battery (360 g / 450 g ). It has a built in GPS so that ozone measurements may be logged continuously along with geographic location. By folding the optical path in the shape of a "U," it was possible to achieve the same path length in the POM as in the Models 202, 205, and 106-L and thus have similar precision and accuracy (~1.5 ppb).

The POM has been designated by the US EPA as a Federal Equivalent Method (FEM) for ozone: EQOA–0815–227.

Applications

  • Personal exposure monitoring for studies of health effects of air pollutants
  • Health and safety monitoring at industrial sites using ozone
  • Vertical profiling using balloons, kites, RPVs, and light aircraft where space and weight are highly limited
  • Long-term monitoring at remote locations where power is highly limited
  • Urban arrays of ground-based detectors

Application Note

This note describes a study in which the POM was flown on a drone above Chesapeake Bay, to investigate the chemistry inside the plume of a large freighter at sea. The versatility of the POM was showcased in this work, which also made use of another POM to make complementary measurements at a ground station nearby.

Download: Application of the POM Onboard a Drone to Measure Ship Plume Chemistry at Sea

Picture

 Specifications:

Measurement Principle UV Absorption at 254 nm
Federal Equivalent Method (FEM) Yes, EQOA–0815–227
Linear Dynamic Range 0 ppb to 10 ppm
Resolution 0.1 ppb
Precision (1σ rms noise) Greater of 1.5 ppb or 2% of reading
Accuracy Greater of 1.5 ppb or 2% of reading
Limit of Detection (2σ) 3 ppb
NIST-Traceable Calibration Yes
Measurement Intervals Measurement mode: 10 s (Fast mode: 2 s)
Flow Rate (nominal) ~0.8 Liter/min
Flow Rate Requirement >0.5 L/min
Baseline Drift < 2 ppb/day
<5 ppb/year
Sensitivity Drift < 1%/day
<3%/year
Measurement Time, Frequency 10 s, 0.1 Hz (Fast mode: 2 s, 0.5 Hz)
Response Time, 100% of Step Change For 10-s output: 20 s, 2 points (For 2-s output: 4 s, 2 points)
Averaging Times 1 min, 5 min, 1 hr
Data Storage 8,192 lines (2-s fast mode ~4.6 hr; 10-s meas. mode ~1 day; 1-min avg ~6 days; 5-min avg ~1 mo; 1-hr avg ~1 yr)
Ozone Units ppb
Pressure Units torr
Temperature Units K
T and P Corrected Yes
Operating Temperature Range 0 to 50 °C
Operating Altitude Range ~0-13.5 km (150-1,013 mbar) [modifications for higher altitudes available as an option]
Power Requirement;
Supplied by battery or 110/220 VAC Power Pack
7-12 V dc, nominally 250 mA at 12 V, 3.0 watt
External Battery 7.4 Volt, 1.6 amp hour, Lithium Ion Battery, 5-8 hr
Size without GPS and battery: 4.0 x 3.0 x 1.5 inches (10.2 x 7.6 x 3.8 cm)
add GPS: 5.0 x 3.0 x 1.5 in (12.7 x 7.6 x 3.8 cm)
Weight without battery: 0.8 lb (0.36 kg)
with battery: 1.0 lb (0.45 kg)
Data Transfer Baud Rate 19200
DewLine™ Yes
GPS Yes

System Includes:

  • POM™ Personal Ozone Monitor™
  • AC Power Adapter (100-240 VAC to 12 VDC) with Country-Specific Plug
  • Cigarette Lighter Adapter
  • 7.4 V Lithium Ion Battery
  • Battery Charger
  • Serial Port Cable
  • USB Cable
  • Zeroing Cartridge
  • USB stick with Operation Manual, 2B Display Software and USB Driver
  • Global Positioning System (GPS)
  • Instrument Birth Certificate
  • Calibration Data and NIST-Traceable Calibration Certificate
  • One-Year Warranty

Industrial Technical Services from Mississauga, Ontario is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels.

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