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 ~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 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):EQOA-0410-190.OptionsFlash 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 lifeSpecificationsMeasurement PrincipleUV Absorption at 254 nmLinear Dynamic Range1.5 ppb to 250 ppmResolution0.1 ppbPrecision (1σ; rms noise)Greater of 1.5 ppb or 2% of readingAccuracyGreater of 1.5 ppb or 2% of readingLimit of Detection (2σ)3.0 ppbNIST-Traceable CalibrationYesMeasurement Interval10 s (Data averaging options: 10 s, 1 min, 5 min, 1 hr)Flow Rate (nominal)~1 Liter/minFlow Rate Requirement>0.6 L/minBaseline Drift<2 ppb/day<5 ppb/yearSensitivity Drift<1%/day<3%/yearMeasurement Time, Frequency10 s, 0.1 HzResponse Time, 100% of Step Change20 s, 2 pointsAveraging Times10 s, 1 min, 5 min, 1 hrData Storage14,336 lines (10 s avg. = 1.4 days; 5 min avg = 1.4 mo.)Ozone Unitsppb, ppm, pphm, µg m-3, mg m-3Pressure Unitsmbar, torrTemperature Units°C, KT and P CorrectedYesOperating Temperature Range0 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 Pack12 V dc or 120/240 V ac, 335 mA, 4.0 watt (2.9 watt with cell heater unplugged)Size3.5 x 8.5 x 11 inches (9 x 21 x 29 cm)Weight4.7 lb (2.1 kg); 1.6 lb (0.7 kg) without instrument caseData Logger Capacity14,336 lines (10 s avg. = 1.4 days; 1 min avg = 10 days; 5 min avg = 1.4 mo;1 hr avg = 1.6 yrAnalog Inputs for Internal Logging of Other Instruments3 Analog Inputs, 0-2.5 V; For example could log external T, P and RHData OutputsRS232, 0-2.5 V Analog, LCD Display; External USB Converter: (Optional 4-20 mA Current; request quote)Data Transfer Baud Rates1200, 2400, 4800, 19200Output RangesUser Defined Scaling Factor in MenuDewLine™YesBackup Air PumpYesFlow MeterYesOptionsGPS, Flash Card Memory, 4-20 mA Current Output; Lamp Heater; Rotary Vane Air Pump; Long-Life External Air Pump; Rack Mount CaseUpgradable to Model 205 Dual BeamYesSystem IncludesModel 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.