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POM^TM,袖珍式紫外臭氧分析儀

下一步的以UV為基礎(chǔ)的臭氧檢測儀的已經(jīng)小型化。此款POM臭氧檢測儀尺寸為4英寸×3英寸×1.5英寸，重0.75磅（340克）。由于本機(jī)有內(nèi)置的GPS裝置，因此臭氧檢測值以及其地理位置數(shù)據(jù)能同時得到持續(xù)不斷地存儲。通過把它的光程折疊成“U”型，POM能有和Models 202，205，以及106-L一樣長的光程，那么它有如同這幾款臭氧檢測儀一樣的度（~2ppb）。

檢測原理 254nm紫外吸收
檢測范圍 2.0ppb-10ppm
分辨率 0.1ppb
度優(yōu)于2.0ppb或2%
檢測下限 4.0ppb
NIST可溯源的校準(zhǔn) 是
檢測間隔 10秒 (數(shù)據(jù)選項(xiàng): 10 秒， 1 分鐘， 5 分鐘，1小時)
流量 ~0.8升/分鐘
流量要求 大于0.5升/分鐘
基線漂移 <2ppb/天 <5ppb/年
靈敏度漂移 <1%/天 <3%/年
測量時間和頻率 10s，0.1Hz
反應(yīng)時間 20秒
的步長 2個點(diǎn)
平均次數(shù) 10秒，1分鐘，5分鐘，1小時
數(shù)據(jù)保存 8219行(10 秒平均每天；1 分鐘平均每星期； 5 分鐘平均每月； 1小時平均每年)
臭氧單位 ppb，ppm，pphm，ug m^-3，mg m^-3
壓力單位 Mbar，torr
溫度單位 ℃，K
工作溫度 0-50℃
電源要求 110/220V 交流電或電源組支持 7-24V直流電，一般250mA(12V)，3.0watt
外部電池 7.4 V， 1.6 A/小時，鋰聚合物電池， 5-8 小時
尺寸 4.0 x 3.0 x 1.5 英尺 (10.2 x 7.6 x 3.8 cm)
重量 0.75 磅 (0.34 千克)
數(shù)據(jù)傳輸波特率 19200
Dewline 是

2B Tech has taken the next step in miniaturization of UV-based ozone monitors by developing the Personal Ozone Monitor or "POM". The POM has dimensions of 4 x 3 x 1.5 inches and weighs only 0.75 lb (340 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 (~2 ppb).

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

Specifications

Measurement Principle	UV Absorption at 254 nm
Linear Dynamic Range	2.0 ppb to 10 ppm
Resolution	0.1 ppb
Precision (1σ; rms noise)	Greater of 2.0 ppb or 2% of reading
Accuracy	Greater of 2.0 ppb or 2% of reading
Limit of Detection (2σ)	4.0 ppb
NIST-Traceable Calibration	Yes
Measurement Interval	10 s (Data averaging options: 10 s, 1 min, 5 min, 1 hr)
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
Response Time, 100% of Step Change	20 s, 2 points
Averaging Times	10 s, 1 min, 5 min, 1 hr
Data Storage	8,192 lines (10 s avg ~1 day; 1 min avg ~1 wk; 5 min ~1 mo; 1 hr avg ~1 yr)
Ozone Units	ppb, ppm, pphm, µg m^-3, mg m^-3
Pressure Units	mbar, torr
Temperature Units	°C, K
T and P Corrected	Yes
Operating Temperature Range	0 to 50 °C
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 Polymer Battery, 5-8 hr
Size	4.0 x 3.0 x 1.5 inches (10.2 x 7.6 x 3.8 cm)
Weight	0.75 lb (0.34 kg)
Data Transfer Baud Rate	19200
DewLine™	Yes
GPS	Yes