美国2B Technologies公司臭氧分析仪MODEL 205_详细资料

产品信息 保修期： 1 现货状态：订购供应商：长沙巴溪仪器有限公司数量： 100 规格：台 2B Technologies公司代理商，2B Technologies公司销售商。 Model 205 Dual Beam Ozone Monitor™ The Model 205 Dual Beam Ozone Monitor makes use of two detection cells to improve precision, baseline stability, and response time. In the Dual Beam instrument, UV light intensity measurements Io (ozone-scrubbed air) and I(unscrubbed air) are made simultaneously. Combined with other improvements, this made it possible to reduce the time between ozone measurements to 2 seconds, making our instrument the fastest UV-based ozone monitor on the market, while still retaining the small size, weight, and power requirements of our popular Model 202 Ozone Monitor. Fast measurements are especially desirable for aircraft and balloon measurements where high spatial resolution is needed. Alternatively, one can choose to average more points internally to obtain even better precision. Flash card memory and a long-life, quiet internal air sampling pump are now standard on the instrument. The Model 205 Dual Beam Ozone Monitor has been approved by the EPA as a Federal Equivalent Method (FEM) based on a modification of the Model 202: EQOA-0410-190. Schematic Diagram Features Quiet long-life internal air pump (now standard) Low power consumption (~8 watt) Internal data logger (EEPROM), logs 16,383 lines of data Real-time clock Both serial and user-scalable analog voltage outputs (4-20 mA current output optional) Flash card memory (SD card) for virtually unlimited, portable data storage Three 0-2.5 VDC analog inputs for logging other measurements, such as external temperature, pressure, and humidity Convenient user interface to microprocessor, including calibration parameters (gain and zero) Selectable measurement time of 2 s or data averaging times of 10 s, 1 min, 5 min and 1 hr (custom averaging times available) DewLine™ for elimination of any water vapor interference, a unique feature of 2B Tech instruments Dual beam feature allows for heightened precision and improved baseline stability for applications where high spatial resolution is required. Options GPS for continuous logging of latitude, longitude, and altitude Rechargeable lithium-ion battery provides 12 hours of continuous operation External particle filter Serial-to-USB adapter 4-20 mA analog current output Bluetooth for wireless data transmission Low-temperature package for operation to -20 degrees C (pump, lamp heater) High-altitude upgrade (pressure sensor for use up to 25 km altitude) Extra long-life, low temperature internal air pump Low-power option for even lower power consumption Rack-mount case configuration Specifications Measurement Principle UV Absorption at 254 nm; Dual Beam Federal Equivalent Method (FEM) Yes, EQOA-0410-190 Linear Dynamic Range 0 to 250 ppm Resolution 0.1 ppb Precision (1σ rms noise) Greater of 1.0 ppb or 2% of reading for 10-s average Accuracy Greater of 1.0 ppb or 2% of reading Limit of Detection (2σ) 2.0 ppb for 10-s average NIST-Traceable Calibration Yes Measurement Interval 2 s (Data averaging options: 10 s, 1 min, 5 min, 1 hr) Flow Rate (nominal) ~1.8 Liter/min Flow Rate Requirement >1.2 L/min Baseline Drift < 1 ppb/day < 3 ppb/year Sensitivity Drift < 1%/day < 3%/year Measurement Time, Frequency 2 s, 0.5 Hz Response Time, of Step Change 4 s, 2 points Measurement and Averaging Times 2 s, 10 s, 1 min, 5 min, 1 hr Ozone Units ppb, pphm, ppm, 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 standard; optional -20 to 50 °C with low temperature modifications (pump and lamp heater cold-weather package) Operating Altitude Range ~0-13.5 km (150-1,013 mbar) standard; optional ~0-25 km (30-1,013 mbar) with upgraded pressure sensor Power Requirement; Supplied by battery or 110/220 VAC Power Pack 12 V dc or 120/240 V ac, nominally 650 mA at 12 V, ~8 watt (~7 watt with cell heater unplugged) Size 3.7 x 8.5 x 11.5 inches (9.5 x 21.5 x 30 cm) Weight 5.8 lb (2.6 kg); 3.1 lb (1.4 kg) without instrument case Internal Data Logger Capacity 16,383 lines (2-s fast measurement mode = 9.1 hr; 10 s avg. = 1.9 days; 1 min avg = 11 days; 5 min avg = 1.9 mo; 1 hr avg = 1.9 yr SD Card Logger Capacity > 2 GB (> 5-year capacity for 10-s averaging mode) 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 2400, 4800, 19200 Output Ranges User-Defined Scaling Factor in Menu DewLine™ Yes Quiet, Long-Life Internal Air Pump Yes Flow Meter Yes Options Battery; External Particle Filter; Serial-to-USB Adapter; GPS; Bluetooth; 4-20 mA Current Output; Cold-Weather Package (pump, lamp heater); High-Altitude Upgrade (pressure sensor); Extra-Long-Life, Low-Temperature Internal Air Pump; Low-Power Option; Rack-Mount Case Configuration System Includes Model 205 Dual Beam Ozone Monitor Quiet, Long-Life Internal Air Pump AC Power Adapter (100-240 VAC to 12 VDC) with Country-Specific Plug Cigarette Lighter Adapter Battery Wire Connector Zeroing Cartridge Flash Card Memory for virtually unlimited, portable data storage SD Card (> 2 GB) and SD Card Reader Operation Manual on USB Stick Calibration Data and NIST-Traceable Calibration Certificate Instrument Birth Certificate One-Year Warranty

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Measurement Principle	UV Absorption at 254 nm; Dual Beam
Federal Equivalent Method (FEM)	Yes, EQOA-0410-190
Linear Dynamic Range	0 to 250 ppm
Resolution	0.1 ppb
Precision (1σ rms noise)	Greater of 1.0 ppb or 2% of reading for 10-s average
Accuracy	Greater of 1.0 ppb or 2% of reading
Limit of Detection (2σ)	2.0 ppb for 10-s average
NIST-Traceable Calibration	Yes
Measurement Interval	2 s (Data averaging options: 10 s, 1 min, 5 min, 1 hr)
Flow Rate (nominal)	~1.8 Liter/min
Flow Rate Requirement	>1.2 L/min
Baseline Drift	< 1 ppb/day < 3 ppb/year
Sensitivity Drift	< 1%/day < 3%/year
Measurement Time, Frequency	2 s, 0.5 Hz
Response Time, of Step Change	4 s, 2 points
Measurement and Averaging Times	2 s, 10 s, 1 min, 5 min, 1 hr
Ozone Units	ppb, pphm, ppm, 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 standard; optional -20 to 50 °C with low temperature modifications (pump and lamp heater cold-weather package)
Operating Altitude Range	~0-13.5 km (150-1,013 mbar) standard; optional ~0-25 km (30-1,013 mbar) with upgraded pressure sensor
Power Requirement; Supplied by battery or 110/220 VAC Power Pack	12 V dc or 120/240 V ac, nominally 650 mA at 12 V, ~8 watt (~7 watt with cell heater unplugged)
Size	3.7 x 8.5 x 11.5 inches (9.5 x 21.5 x 30 cm)
Weight	5.8 lb (2.6 kg); 3.1 lb (1.4 kg) without instrument case
Internal Data Logger Capacity	16,383 lines (2-s fast measurement mode = 9.1 hr; 10 s avg. = 1.9 days; 1 min avg = 11 days; 5 min avg = 1.9 mo; 1 hr avg = 1.9 yr
SD Card Logger Capacity	> 2 GB (> 5-year capacity for 10-s averaging mode)
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	2400, 4800, 19200
Output Ranges	User-Defined Scaling Factor in Menu
DewLine™	Yes
Quiet, Long-Life Internal Air Pump	Yes
Flow Meter	Yes
Options	Battery; External Particle Filter; Serial-to-USB Adapter; GPS; Bluetooth; 4-20 mA Current Output; Cold-Weather Package (pump, lamp heater); High-Altitude Upgrade (pressure sensor); Extra-Long-Life, Low-Temperature Internal Air Pump; Low-Power Option; Rack-Mount Case Configuration