Sustainable Construction
Lorem ipsum dolor...
.jpg)
Personal Ozone Monitor [POM]
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.
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 |
| Sensitivity Drift | < 1%/day |
| 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; | 7-24 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) |
| Weight | without battery: 0.8 lb (0.36 kg) |
| Data Transfer Baud Rate | 19200 |
| DewLine™ | Yes |
| GPS | Yes |
| Sampling Probe | Available as an option |