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Measurement Principle
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UV Absorption at 254 nm
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Linear Dynamic Range
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0 to 2,000 μg/m3
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Resolution
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0.1 μg/m3
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Precision (1σ rms noise)
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Greater of 0.1 μg/m3 or 2% of reading (in 10-s measurement mode)
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Limit of Detection (2σ)
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0.2 μg/m3 (in 10-s measurement mode)
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Accuracy
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Greater of 0.1 μg/m3 or 2% of reading
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NIST-Traceable Calibration
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Yes
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Measurement Interval
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Fast mode: 2 s
Measurement mode: 10 s
Data averaging options: 1 min, 5 min, 1 hr
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Flow Rate (nominal)
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~0.8 Liter/min
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Flow Rate Requirement
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>0.5 Liter/min
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Baseline Drift
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< 0.1 μg/m3/day
< 5 μg/m3/year
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Sensitivity Drift
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< 1%/day
< 3%/year
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Measurement Time, Frequency
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Fast mode: 2 s, 0.5 Hz
Measurement mode: 10 s, 0.1 Hz
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Response Time, 100% of Step Change
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For 2-s output: 4 s, 2 points
For 10-s output: 20 s, 2 points
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Averaging Times
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1 min, 5 min, 1 hr
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Data Storage
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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)
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Mercury Units
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ppb, μg m-3
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Pressure Units
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torr
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Temperature Units
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K
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T and P Corrected
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Yes
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Operating Temperature Range
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0 to 50 °C
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Operating Altitude Range
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~0-13.5 km (150-1,013 mbar)
[modifications for higher altitudes available as an option]
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Power Requirement;
Supplied by battery or 110/220 VAC Power Pack
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7-24 V dc, nominally 250 mA at 12 V, 3.0 watt
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External Battery
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7.4 Volt, 1.6 amp hour, Lithium Ion Battery, 5-8 hr
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Size
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4.0 x 3.0 x 1.5 inches (10.2 x 7.6 x 3.8 cm)
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Weight
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0.75 lb. (0.34 kg)
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Data Transfer Baud Rate
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19200
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DewLine?
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Yes
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GPS
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Yes
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Sampling Probe
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Available as an option
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