测量原理 | UV Absorption at 254 nm |
线性动态范围 | 0 to 2,000 μg/m3 |
解析度 | 0.1 μg/m3 |
精度(1σ均方根噪声) | Greater of 0.1 μg/m3 or 2% of reading (in 10-s measurement mode) |
检测限(2σ) | 0.2 μg/m3 (in 10-s measurement mode) |
准确性 | Greater of 0.1 μg/m3 or 2% of reading |
NIST可溯源校准 | Yes |
测量间隔 | Fast mode: 2 s Measurement mode: 10 s Data averaging options: 1 min, 5 min, 1 hr |
流量(标称) | ~0.8 Liter/min |
流量要求 | >0.5 Liter/min |
基线漂移 | < 0.1 μg/m3/day < 5 μg/m3/year |
灵敏度漂移 | < 1%/day < 3%/year |
测量时间,频率 | Fast mode: 2 s, 0.5 Hz Measurement mode: 10 s, 0.1 Hz |
响应时间,100%的步骤更改 | For 2-s output: 4 s, 2 points For 10-s output: 20 s, 2 points |
平均时间 | 1 min, 5 min, 1 hr |
数据存储 | 8,192 lines (2-s fast mode ~4.6 hr; 10-s meas. mode ~1 day; 1-min avg ~6 days; 5-min avg ~1 mo; 1-hr avg ~1 yr) |
汞单位 | ppb, µg m-3 |
压力单位 | torr |
温度单位 | K |
T和P更正 | Yes |
工作温度范围 | 0 to 50 °C |
操作高度范围 | ~0-13.5 km (150-1,013 mbar) [modifications for higher altitudes available as an option] |
电源要求;由电池或110/220 VAC电源提供 | 7-24 V dc, nominally 250 mA at 12 V, 3.0 watt |
外部电池 | 7.4 Volt, 1.6 amp hour, Lithium Ion Battery, 5-8 hr |
尺寸 | 4.0 x 3.0 x 1.5 inches (10.2 x 7.6 x 3.8 cm) |
重量 | 0.75 lb. (0.34 kg) |
数据传输波特率 | 19200 |
DewLine™ | Yes |
定位系统 | Yes |
取样探头 | Available as an option |