美國(guó)2B Model 202紫外吸收法臭氧分析儀
北京中清國(guó)投環(huán)?？萍加邢薰?品質(zhì) 一站式采購(gòu) 美國(guó)2B Model 202 紫外法臭氧分析儀大量現(xiàn)貨供應(yīng)！咨詢！
美國(guó)2B Model202紫外吸收法高精度臭氧分析儀（1.5ppb-250ppm）
美國(guó)2B Model 202紫外吸收法臭氧分析儀簡(jiǎn)介：
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)量更加精確，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)，用電受嚴(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
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 250,000 ppb (0-250 ppm) based on the well-established technique of absorption of UV light at 254 nm. The Model 202 Ozone Monitor? is lightweight (4.7 lb., 2.1 kg.) and has a low power consumption (12V DC, 0.33 amp, 5 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
特點(diǎn)：
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)精確；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
技術(shù)參數(shù)
| 檢測(cè)原理 | 254nm的紫外吸收技術(shù) |
| 檢測(cè)范圍 | 1.5 ppb to 250 ppm; |
| 精度 | 0.1ppb |
| 誤差(1σ; rms noise) | 1.5ppb或者讀數(shù)的2% |
| 臨界值 | 3.0 ppb |
| NIST可追蹤校準(zhǔn) | 有 |
| 測(cè)量區(qū)間 | 10秒（平均數(shù)據(jù)選項(xiàng)：10秒，1分鐘，5分鐘，1小時(shí)） |
| 流量 | 1升/分鐘 |
| 流量需求 | > 0.6升/分鐘 |
| 基線漂移 | <2 ppb/天 <5 ppb/年 |
| 靈敏度漂移 | <1%/天 <3%/年 |
| 測(cè)量時(shí)間，頻率 | 10秒，0.1赫茲 |
| 響應(yīng)時(shí)間 | 20秒 |
| 平均時(shí)間 | 10秒，1分鐘，5分鐘，1小時(shí) |
| 數(shù)據(jù)存儲(chǔ) | 14,336 lines (10 s avg. = 1.4 days; 5 min avg = 1.4 mo.) |
| 臭氧單位 | ppb的，ppm時(shí)，pphm，微克米-3米-3毫克 |
| 重量 | 4.7磅（2.1公斤）;1.6磅（0.7公斤） |
標(biāo)準(zhǔn)配置
·臭氧監(jiān)測(cè)Model202主機(jī)
·交流電源適配器（100-240 VAC至12伏直流電具體國(guó)家的插頭）
·蓄電池導(dǎo)線連接器
·歸零墨盒
·操作手冊(cè)光盤
·校準(zhǔn)數(shù)據(jù)和NIST可追蹤校準(zhǔn)證書
·儀器出生證明書
·一年保修
Specifications
| Measurement Principle | UV Absorption at 254 nm |
| Federal Equivalent Method (FEM) | Yes, EQOA-0410-190 |
| Linear Dynamic Range | 0 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: 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 | 1 min, 5 min, 1 hr |
| Internal Data Logger Capacity | 16,383 lines (10-s meas. = 1.9 days; 1-min avg = 11 days; 5-min avg = 1.9 mo; 1-hr avg = 1.9 yr) |
| SD Card Logger Capacity | Minimum 2 GB (> 5-year capacity for 10-s measurement mode) |
| Ozone Units | ppb, ppm, pphm, ?g 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 standard; optional -20 to 50 °C with low temperature modifications (pump and lamp heater cold-weather package) |
| Operating Altitude Range | ~0-13.5 km (150-1,013 mbar) standard; optional ~0-25 km (30-1,013 mbar) with upgraded pressure sensor |
| Power Requirement; Supplied by battery or 110/220 VAC Power Pack | 12 V dc or 120/240 V ac, 470 mA, 5 watt (4 watt with cell heater unplugged) |
| Size | 3.5 x 8.5 x 11 inches (9 x 21 x 29 cm) |
| Weight | 5.3 lb (2.4 kg); 2.6 lb (1.2 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 | 2400, 4800, 19200 |
| Output Ranges | User-Defined Scaling Factor in Menu |
| DewLine? | Yes |
| Backup Air Pump | Yes |
| Flow Meter | Yes |
| Options | Battery; External Particle Filter; Serial-to-USB Converter; GPS; Bluetooth; 4-20 mA Current Output; Cold-Weather Package (pump, lamp heater); High-Altitude Upgrade; Long-Life Internal Air Pump; Rack-Mount Case Configuration |
| Upgradable to Model 205 Dual Beam | Yes |
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