簡(jiǎn)要描述：美國(guó)2B公司的Model 202臭氧分析儀基于成熟的紫外吸收技術(shù)@254nm，使測(cè)量更加，測(cè)量范圍1ppb至100,000ppb(0-100 ppm) 。相對(duì)常規(guī)儀器，Model 202臭氧分析儀重量輕（2.1 kg），能耗低(12V DC， 0.33 amp，4.0 Watt)，因此適合應(yīng)用于如下場(chǎng)合：高空測(cè)量垂直分布、遙控飛行器RPVS及輕型飛機(jī)等場(chǎng)合，在那里對(duì)空間及......

詳細(xì)介紹

美國(guó)2B公司的Model 202臭氧分析儀基于成熟的紫外吸收技術(shù)@254nm，使測(cè)量更加，測(cè)量范圍1ppb至100,000ppb(0-100 ppm) 。相對(duì)常規(guī)儀器，Model 202臭氧分析儀重量輕（2.1 kg），能耗低(12V DC， 0.33 amp，4.0 Watt)，因此適合應(yīng)用于如下場(chǎng)合：

高空測(cè)量垂直分布、遙控飛行器RPVS及輕型飛機(jī)等場(chǎng)合，在那里對(duì)空間及重量有嚴(yán)格限制。
需長(zhǎng)期檢測(cè)的偏遠(yuǎn)地區(qū)，用電受?chē)?yán)格限制。
市區(qū)地面基站探測(cè)網(wǎng)
個(gè)人暴露測(cè)量，用于環(huán)境污染對(duì)健康影響的研究
環(huán)境健康及安全監(jiān)測(cè)
實(shí)驗(yàn)室研究，研究材料和組織暴露于臭氧的影響
Model 202臭氧分析儀被EPA認(rèn)定為等效測(cè)量方法（Federal Equivalent Method /FEM：EQOA-0410-190）。作為的FEM，該儀器可廣泛用于各個(gè)州和其它檢測(cè)機(jī)構(gòu)，遵循大氣質(zhì)量監(jiān)督40 CFR 58 節(jié)，符合潔凈空氣法則檢測(cè)標(biāo)準(zhǔn)。
車(chē)載電源適配器可用于運(yùn)動(dòng)中/野外大氣化學(xué)研究
可輸入三個(gè)模擬信號(hào)用于科學(xué)研究
溫度、濕度和海拔高度修正(海拔升高1000米產(chǎn)生的誤差高達(dá)14%!)，隨時(shí)隨地確保
讀數(shù)；Dew-Line*濕度修正技術(shù)克服了傳統(tǒng)紫外臭氧分析儀的限制，使得濕度
對(duì)臭氧測(cè)量的干擾從高達(dá)近百個(gè)ppb降低到可以接受的幾個(gè)ppb的水平
動(dòng)態(tài)的線(xiàn)性量程：1.5 ppbv到250ppmv，自動(dòng)換擋，ppb單位顯示
精度和準(zhǔn)確度：優(yōu)于1.5 ppbv 或2%的讀數(shù)取大者；分辨率0.1ppb
測(cè)量間隔：10 秒(平均選項(xiàng)：10s，1 min，5 min，1 hr)
流量率：約1 L/min
數(shù)據(jù)儲(chǔ)存：20480行(每10s 儲(chǔ)存一個(gè)數(shù)據(jù)平均可達(dá)到2.4天，每5分鐘可達(dá)2.4 月)
數(shù)據(jù)輸出：RS-232/USB，0～2.5V DC 模擬，LCD顯示
數(shù)據(jù)輸入：3 通道，0～2.5 V DC
電源：12 V DC，4.0 W (2.9 W 低功耗模式下)
5種單位顯示，ppm，ppb，pphm，g/Nm³，μg/m³

The 2B Technologies Model 202 Ozone Monitor™ is designed to enable accurate and precise measurements of ozone ranging from low ppb (precision of ~1 ppb) up to 100,000 ppb (0-100 ppm) based on the well established technique of absorption of UV light at 254 nm. The Model 202 Ozone Monitor™ is light weight (4.7 lb., 2.1 kg.) and has a low power consumption (12V DC, 0.33 amp, 4.0 Watt) relative to conventional instruments and is therefore well suited for applications such as:
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
Personal exposure monitoring for studies of health effects of air pollutants
Environmental health and safety monitoring
Laboratory studies of the effects of ozone exposure on materials and organisms
The Model 202 has been designated by the EPA as a Federal Equivalent Method (FEM): EQOA-0410-190.
Options
Flash Card Memory for virtually unlimited, portable data storage
GPS for continuous logging of latitude, longitude and altitude
Rechargeable metal hydride battery provides 12 hr of continuous operation
External particle filter
Serial-to-USB adapter
Rotary vane air pump for low temperature and quiet operation
External air pump for long pump life

Specifications

Measurement Principle	UV Absorption at 254 nm
Linear Dynamic Range	1.5 ppb to 250 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)	3.0 ppb
NIST-Traceable Calibration	Yes
Measurement Interval	10 s (Data averaging options: 10 s, 1 min, 5 min, 1 hr)
Flow Rate (nominal)	~1 Liter/min
Flow Rate Requirement	>0.6 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, 99% of Step Change	20 s, 2 points
Averaging Times	10 s, 1 min, 5 min, 1 hr
Data Logger Capacity	14,336 lines (10 s avg. = 1.4 days; 1 min avg = 10 days; 5 min avg = 1.4 mo; 1 hr avg = 1.6 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; -20 to 50 °C with low temperature modifications (rotary vane pump and lamp heater)
Operating Altitude Range	~0-30 km (~30-1000 mbar)
Power Requirement; Supplied by battery or 110/220 VAC Power Pack	12 V dc or 120/240 V ac, 335 mA, 4.0 watt (2.9 watt with cell heater unplugged)
Size	3.5 x 8.5 x 11 inches (9 x 21 x 29 cm)
Weight	4.7 lb (2.1 kg); 1.6 lb (0.7 kg) without instrument case
Analog Inputs for Internal Logging of Other Instruments	3 Analog Inputs, 0-2.5 V; For example could log external T, P and RH
Data Outputs	RS232, 0-2.5 V Analog, LCD Display: (Optional 4-20 mA Current, External USB Converter; request quote)
Data Transfer Baud Rates	1200, 2400, 4800, 19200
Output Ranges	User Defined Scaling Factor in Menu
DewLine™	Yes
Backup Air Pump	Yes
Flow Meter	Yes
Options	GPS, Flash Card Memory, 4-20 mA Current Output; Lamp Heater; Rotary Vane Air Pump; Long-Life External Air Pump; Rack Mount Case
Upgradable to Model 205 Dual Beam	Yes