类型	进口仪表	新旧程度	8成新
设备所在地	东莞市	设备生产产地	美国
产品数量	3

MIE DataRam DR-2000 MIE DataRAM 2000型空气质量监测仪 美国热电子 DR2000、DR-2000  With the DataRAMTM, you"ll never again have to wait for laboratoryresults to assess whether airborne pollutants have reached dangerouslevels. The DataRAM Real-Time Aerosol Monitor measures massconcentrations of airborne dust, smoke, mists, haze, and fumesand provides continuous real-time readouts. Large capacityonboard data logging capability lets you save concentration datafor future analysis. With optional accessories, the DataRAM canalso provide respirable, PM-2.5, or PM-10 correlatedmeasurements. For exposure sampling or continuous unattendedindoor air, ambient, duct, or process monitoring, no other aerosolmonitor is as fast, accurate, and easy to use as the DataRAM.  FeaturesDesigned for High SensitivityA high-sensitivity nephelometric monitor, the DataRAM samples the airat a constant, regulated flow rate by means of a built-in diaphragm pump.The DataRAM"s light scattering configuration is optimized for themeasurement of airborne particle concentrations, maximizing the unit"ssensitivity. The detected signal is processed by state-of-the-artlock-in circuitry followed by high-resolution digitization, achievingultimate detectability of atmospheric Rayleigh scattering fluctuations.The Widest Measurement Rangeof Any Real-Time Particulate MonitorIn addition to its high sensitivity, the DataRAM has the widest measurementrange of any real-time aerosol monitor-from 0.0001 mg/m3(0.1µg/m3)to 400 mg/m3. With a total span of almost 7 decades, the DataRAMis capable of effectively, measuring mass concentrations of airborneparticles in industrial and ambient environments ranging from exceptionallypristine to extremely polluted. The instrument can also be used for atmosphericvisibility measurements over a wide range of scattering coefficients.(0.00015 to 600 km-1). The DataRAM"s auto-ranging digital display providesboth real-time and time averaged concentrations.Exceptional Long-Term StabilityThe DataRAM incorporates several technological advances whichguarantee exceptional long-term stability. Near infrared sourceoutput feedback control provides drift-free operation and excellenttemperature stability. For either manual or preprogrammed/automaticzeroing of the monitor, an electronically controlled latchingsolenoid valve diverts the entire filtered air stream though the opticalsensing stage in order to achieve "zero" air reference. In addition,instrument span checks (secondary calibration) can be performedsimply by turning a knob on the DataRAM"s back panel, whichinserts a built-in optical scattering/diffusing element into the filteredair stream. On-screen diagnostic indicators and automatic shut-off forlow battery conditions also help ensure the monitor"s correct operationand data storage.Menu-Driven Information DisplaysIn addition to the auto-ranging real-time concentration readout,the DataRAM provides users with a variety of informationaldisplays on its 8-line LCD screen. Real-time and date, time-weighted average concentrations, elapsed run times, and otherinformation are easily viewed by selecting the appropriate screenusing a scroll-through menu. Operating parameters and diagnosticinformation displays can also be easily accessed through the menuusing only 6 keys on the front of the instrument.Integral Large-Capacity Data LoggerThe DataRAM has built-in large-capacity data logging capabilities.Stored information includes time and date, average concentrations,maximum and minimum values over selected periods, STELconcentration, and tagging codes. Logged information can beretrieved either by scrolling through the DataRAM"s display or bydown-loading to an external device such as a personal computeror printer.Digital, Analog, and Alarm OutputsThe DataRAM provides continuous digital output (by means of anRS232C data port) as well as analog output, and a switchedoutput for selectable high-level alarm with a built-inaudible signal.   SpecificationsConcentration measurement ranges (auto-ranging)1:0.1 to 999.9 µg/m3(resolution: 0.1µg/m3)1.00 to 39.99 µg/m3(resolution: 0.01mg/m3)40.0 to 399.9 mg/m3(resolution: 0.1mg/m3)Scattering coefficient range:1.5 x 10-7to6 x 10-1m-1(approximate) @l =880 nmConcentration display averaging/updating interval2:1 or 10 secondsPrecision/repeatability over 1 hour (2-sigma)3:+0.3 µg /m3for 10 second averaging+1.0 µg /m3for 1 second averagingAccuracy1:+5% of reading+precisionParticle size range of maximum response :0.1 to 10µmSampling flow rate2:1.7 to 2.3 liters/minuteAlarm level adjustment range2:0.1 µg/m3to 399.9 mg/m3Alarm averaging time :real time (1 or 10 seconds),or STEL (15 minutes)Data logging averaging periods2:1 second to 4 hoursTotal number of data points in memory:10,000 ( each point: average, minimum, and maximum concentrations)Logged data:For each data point: average, minimum, and maximum concentrations; time/date; and data point number  Run summary: tag number of logged points; start time/date; total elapsed run time; averaging time; data logging averaging period; calibration factor; STEL concentration; STEL occurrence time after start; overall average concentration; overall maximum and minimum concentrations with data point numberNumber of data tags:10Real time and date data:seconds; minutes; hours; day of month; month and year (with leap year compensation)Clock accuracy:+1 minute/month, or better   Elapsed time range:1 second to 99 daysTime keeping and data storage duration:> 10 yearsReadout display:LCD 120 x 64 dots, 15 characters x 8 lines, 57.6 x 38.4 mm active areaInternal battery:rechargeable sealed lead-acid; 6.5 Ahr; 6 V nominalOperating time with new and initial full battery charge4:> 24 hoursOperating time with DataRAM charger:continuous and unlimitedCharging input power:115/230 VAC, 50/60 Hz, 50 VAExternal DC power (optional):6 V @ 3 AAnalog output (auto ranging)5:0 to 5 V, for 0 to 4 mg/m30.5 to 5 V, for 4 to 40 mg/m30.5 to 5 V, for 40 to 400 mg/m3Digital output:RS232C, 9600 baud; 8 data bits, 1 stop bit; parity: noneAlarm output:switched. 1 A @ 10 V maximum,resistance < 0.1WAlarm sound intensity:90 dB @ 1 mFuse:1 A, fastOperating environment:0oto 40oC (32oto 104oF), 0 to 95% RH, noncondensingStorage environment:-20oto 60oC (-4oto 140oF)Dimensions:134 mm (5.28 in) H x 184 mm (7.25 in) W x 346 mm (13.63 in) DWeight:5.3 kg ( 11.7 lbs )Standard accessories included:universal voltage battery charger, standard HEPA filter cartridge, analytical filter holder, PC communications software disk, digital output cable, carrying case, and instruction manual 1referred to gravimetric calibration with AC Fine test dust2User selectable3At constant temperature4At 25oC5Range identified on LCD screen

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