Personal Ozone Monitor Manual Rev. E-2
6
2.2.
Table of Specifications: Personal Ozone Monitor (PAM)
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
(10-s measurement mode, with default adaptive filter settings)
Limit of Detection
(2σ)
3.0 ppb
(10-s measurement mode, with default adaptive filter settings)
Accuracy
Greater of 1.5 ppb or 2% of reading
NIST-Traceable Calibration
Yes
Measurement Intervals
Measurement mode: 10 s; Fast mode: 2s
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: 2s, 0.5 Hz)
Response Time, 100% of Step
Change
For 10-s output: 20 s, 2 data points
For 2-s output: 4s, 2 data points
Data Averaging Options
1 min, 5 min, 1 hr
Data Storage
8,192 lines (2-s fast mode ~4.6 hrs; 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/
Pressure/Altitude Ranges
0 to 50°C; 150-1013 mbar; 0-13.5 km
[lower pressure range available as an option]
Power Requirement;
Supplied by battery or 110/220
VAC Power Pack
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
With GPS: 5.5 × 3.0 × 1.5 inches (14.0 × 7.6 × 3.8 cm)
Without GPS: 4.0 × 3.0 × 1.5 inches (10.2 × 7.6 × 3.8 cm)
Weight
1.0 lb (454 g); without battery: 0.8 lb (360 g)
Data Transfer Baud Rate
19200
DewLine
TM
Yes
GPS
Yes
