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POM美国2B紫外臭氧分析仪
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详细信息
POMTM,袖珍式紫外臭氧分析仪
下一步的以UV为基础的臭氧检测仪的已经小型化。此款POM臭氧检测仪尺寸为4英寸×3英寸×1.5英寸，仅重0.75磅（340克）。由于本机有内置的GPS装置，因此臭氧检测值以及其地理位置数据能同时得到持续不断地存储。通过把它的光程折叠成“U”型，POM能有和Models 202，205，以及106-L一样长的光程，那么它就有如同这几款臭氧检测仪一样的度（~2ppb）。
检测原理 254nm紫外吸收
检测范围 2.0ppb-10ppm
分辨率 0.1ppb
度 优于2.0ppb或2%
检测下限 4.0ppb
NIST可溯源的校准 是
检测间隔 10秒 (数据选项: 10 秒， 1 分钟， 5 分钟，1小时)
流量 ~0.8升/分钟
流量要求 大于0.5升/分钟
基线漂移 <2ppb/天 <5ppb/年
灵敏度漂移 <1%/天 <3%/年
测量时间和频率 10s，0.1Hz
反应时间 20秒
的步长 2个点
平均次数 10秒，1分钟，5分钟，1小时
数据保存 8219行(10 秒平均每天；1 分钟 平均每星期； 5 分钟平均每月； 1小时平均每年)
臭氧单位 ppb，ppm，pphm，ug m-3，mg m-3
压力单位 Mbar，torr
温度单位 ℃，K
工作温度 0-50℃
电源要求 110/220V 交流电或电源组支持 7-24V直流电，一般250mA(12V)，3.0watt
外部电池 7.4 V， 1.6 A/小时， 锂聚合物电池， 5-8 小时
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)
数据传输波特率 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 |
| Sensitivity Drift | <1%/day |
| 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 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 |
