产品2b臭氧分析仪202型使用254nm紫外光吸收法，适用于监测大气中的臭氧浓度，量程由1.5ppbv至100ppmv。分析仪特点高精度、体积细小、重量(4.7磅, 2.1公升)及低电量消耗。备有遥控监测配件。
特点：使用254nm紫外光吸收法高精度及分解度，量程由1.5ppbv至100ppmv低电量消耗，能以12v dc (5.0w)外置电源操作dewlinetm 技术减低水气对仪器的干扰模拟输出0-2.5v应用：气球及航空的大气测量建立城市监测网络个人及工作环境监测工业生产中监测产品规格：操作原理 紫外光254nm灯
量程 1.5ppbv-100ppmv
精度 ±2%
采样时间 10秒、1分钟、5分钟及1小时
记忆容量 20,480组
输出 数码显示，0-2.5v，rs-232
流量 大约1l/min
尺寸 / 重量 90 × 210 × 290 mm / 4.7lb
电源 12vdc交流电
the 2b technologies model 202 ozone monitor™ is designed to enable accurate and precise measurements of ozone ranging from low ppb (precision of ~1ppb) 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 lowpower 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 limitedlong-term monitoring at remote locations where power is highly limitedurban arrays of ground-based detectorspersonal exposure monitoring for studies of health effects of air pollutantsenvironmental health and safety monitoringlaboratory studies of the effects of ozone exposure on materials and organismsthe model 202 has been designated by the epa as a federal equivalent method (fem):.
options
flash card memory for virtually unlimited, portable data storagegps for continuous logging of latitude, longitude and altituderechargeable metal hydride battery provides 12 hr of continuous operationexternal particle filterserial-to-usb adapterrotary vane air pump for low temperature and quiet operationexternal air pump for long pump lifespecifications
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
<5 ppb/year
sensitivity drift <1%/day
<3%/year
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
system includes
model 202 ozone monitorac power adapter (100-240 vac to 12 vdc) with country-specific plugcigarette lighter adapter battery wire connectorzeroing cartridgeoperation manual on cdcalibration data and nist-traceable calibration certificateinstrument birth certificateone year warrantyto download a brochure describing the model 202 ozone monitor™ (pdf format), click on the download button below.

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长沙巴溪仪器有限公司
刘意
13875951733
湖南长沙市芙蓉区远大路408号泰禹公馆2期中栋2单元406室