| 品牌 | 美国2B | 型号 | Model202 |
| 类型 | 便携式臭氧检测仪 | 测量范围 | 0-100ppM |
| 测量对象 | 臭氧 | 测量 | 2% |
进口臭氧分析仪美国2BModel202,臭氧分析仪,进口臭氧分析仪设计用来测量大气中的臭氧浓度，范围从1.5 ppbv 到250 ppmv，该仪器使用了已标准的紫外吸收技术。仪器具有高的，小巧的体积和低功耗。是许多远程现场监测和城市网络监测应用的理想工具；也是科学试验、实验研究和工艺监测的理想选择。
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详细介绍：
测量原理：254 nm紫外吸收技术
量程：1.5 ppbv到250 ppmv
和准确度：优于1.5 ppbv 或2%
测量间隙：10 秒(平均选项：10s，1 min，5 min，1 hr)
流量率：约1L/min
数据储存：20480行(每10s 储存一个数据平均可达到2.4 天，每5 分钟可达2.4 月)
数据输出：RS-232，0-2.5V DC 模拟，LCD显示
数据输入：3 通道，0-2.5 V DC
电源：12 V DC，4.0 W (2.9 W 低功耗模式下)
尺寸：9 cm x 21 cm x 29 cm
重量：2.1kg
主要特点
• 基于UV紫外吸收技术
• 高(1.5 ppbv)• 低功耗12V DC (4.0 W)
• 体积小巧，重量轻
• 包含内部数据记录器和实时时钟，3个附加的模拟信号输入。
• 在线微处理器具有交互式菜单，包括数据平均选项20s，1m，5m，1hr
• RS-232 RS232输出时间/日期，O3浓度、温度和压力• 模拟输出（0-2.5V DC）
• 两行液晶显示
202臭氧检测仪是为了检测空气中的臭氧浓度而设计的
·仪器具有高，低损耗的特点
·广泛应用于科学实验和工艺监测等领域
技术参数
| 检测原理 | 254nm的紫外吸收技术 |
| 检测范围 | 1.5 ppb to 250 ppm; |
| 0.1ppb | |
| 误差 | 1.5ppb或者读数的2% |
| 临界值 | 3.0 ppb |
| 可追踪校准 | 有 |
| 测量时间间隔 | 10秒（平均数据选项：10秒，1分钟，5分钟，1小时） |
| 气体流量 | 1升/分钟 |
| 流量需求 | > 0.6升/分钟 |
| 零点漂移 | 3PPB/天 <5 ppb/年 |
| 灵敏度漂移 | <1%/天 <3%/年 |
| 测量时间，频率 | 10秒，0.1赫兹 |
| 响应时间 | 20秒 |
| 采样平均时间 | 10秒，1分钟，5分钟，1小时 |
| 数据存储 | 14,336 lines (10 s avg. = 1.4 days; 5 min avg = 1.4 mo.) |
| 臭氧单位 | ppb的，ppm时，pphm，微克米-3米-3毫克 |
| 重量 | 2.1公斤 |
标准配置
·臭氧监测模型202
·交流电源适配器（100-240 VAC至12伏直流电）
·电池导线连接器
·操作手册光盘
·校准数据和可追校准证书
·仪器出生证明书
·一年保修
- 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 MethodOptions
- 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
System Includes
- Model 202 Ozone Monitor
- AC Power Adapter (100-240 VAC to 12 VDC) with Country-Specific Plug
- Cigarette Lighter Adapter
- Battery Wire Connector
- Zeroing Cartridge
- Operation Manual on CD
- Calibration Data and NIST-Traceable Calibration Certificate
- Instrument Birth Certificate
- One Year Warranty
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 |
| Sensitivity Drift | <1%/day |
| 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 | 14,336 lines (10 s avg. = 1.4 days; 5 min avg = 1.4 mo.) |
| 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 |
| 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 |
| 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; External USB Converter: (Optional 4-20 mA Current; 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 |
