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Model 202 臭氧分析儀

簡要描述:美國2B公司的Model 202臭氧分析儀基于成熟的紫外吸收技術(shù)@254nm,使測量更加,測量范圍1ppb100,000ppb(0-100 ppm) 。相對常規(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)用于如下場合:
高空測量垂直分布、遙控飛行器RPVS及輕型飛機(jī)等場合,在那里對空間及重量有嚴(yán)格限

  • 更新時間:2025-01-14
  • 廠商性質(zhì):經(jīng)銷商
  • 訪  問  量:2654

詳細(xì)介紹

美國2B公司的Model 202臭氧分析儀基于成熟的紫外吸收技術(shù)@254nm,使測量更加,測量范圍1ppb100,000ppb(0-100 ppm) 。相對常規(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)用于如下場合:

  •    高空測量垂直分布、遙控飛行器RPVS及輕型飛機(jī)等場合,在那里對空間及重量有嚴(yán)格限制。
  •    需長期檢測的偏遠(yuǎn)地區(qū),用電受嚴(yán)格限制。
  •    市區(qū)地面基站探測網(wǎng)
  •    個人暴露測量,用于環(huán)境污染對健康影響的研究
  •    環(huán)境健康及監(jiān)測
  •    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)定為等效測量方法(Federal Equivalent Method /FEM:EQOA-0410-190)。作為的FEM,該儀器可廣泛用于各個州和其它檢測單位,遵循大氣監(jiān)督40 CFR 58 節(jié),符合潔凈空氣法則檢測標(biāo)準(zhǔn)。

  • 車載電源適配器可用于運(yùn)動中/野外大氣化學(xué)研究
  • 可輸入三個模擬信號用于
  • 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%!),隨地
    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
    對臭氧測量的干擾從高達(dá)近百個ppb降低到可以接受的幾個ppb的水平
  • 動態(tài)的線性量程:1.5 ppbv到250ppmv,自動換擋,ppb單位顯示
  • 精度和度:優(yōu)于1.5 ppbv 或2%的讀數(shù)取大者;分辨率0.1ppb
  • 測量間隔: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)儲存:20480行(每10s 儲存一個數(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 PrincipleUV Absorption at 254 nm
    Linear Dynamic Range1.5 ppb to 250 ppm
    Resolution0.1 ppb
    Precision (1σ; rms noise)Greater of 1.5 ppb or 2% of reading
    AccuracyGreater of 1.5 ppb or 2% of reading
    Limit of Detection (2σ)3.0 ppb
    NIST-Traceable CalibrationYes
    Measurement Interval10 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, Frequency10 s, 0.1 Hz
    Response Time, 100% of Step Change20 s, 2 points
    Averaging Times10 s, 1 min, 5 min, 1 hr
    Data Logger Capacity14,336 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 Unitsppb, ppm, pphm, µg m-3, mg m-3
    Pressure Unitsmbar, torr
    Temperature Units°C, K
    T and P CorrectedYes
    Operating Temperature Range0 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)
    Size3.5 x 8.5 x 11 inches (9 x 21 x 29 cm)
    Weight4.7 lb (2.1 kg); 1.6 lb (0.7 kg) without instrument case
    Analog Inputs for Internal Logging of Other Instruments3 Analog Inputs, 0-2.5 V; For example could log external T, P and RH
    Data OutputsRS232, 0-2.5 V Analog, LCD Display: (Optional 4-20 mA Current, External USB Converter; request quote)
    Data Transfer Baud Rates1200, 2400, 4800, 19200
    Output RangesUser Defined Scaling Factor in Menu
    DewLine™Yes
    Backup Air PumpYes
    Flow MeterYes
    OptionsGPS, 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 BeamYes

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