With the DataRAMTM, you'll never have to wait for laboratory results to assess whether airborne pollutants have reached dangerous levels. The DataRAM real-time aerosol monitor measures mass concentrations of airborne dust, smoke, mist, haze, and fumes, while providing continuous real-time readouts of both air temperature and humidity. Large capacity onboard datalogging capability lets you save concentration data for future analysis. With optional accessories, the DataRAM can also provide respirable, PM2.5 or PM10 correlated measurements.
Product Detail
Unlike typical particle counting devices, the DataRAM is totally immune to particle coincidence errors, even at the highest concentrations. For exposure sampling or continuous unattended indoor air, ambient, duct, or process monitoring, no other aerosol monitor is as fast, accurate and easy to use as the DataRAM. This significantly advanced model is an improvement over the previous version, DR-2000, by the addition of many features such as internal self monitoring, features to increase sensitivity especially with new fine aerosol monitoring regulations and easier to use software and display to mention a few.
Designed for High Sensitivity
A high-sensitivity nephelometric monitor, the DataRAM samples the air at a constant, regulated flow rate by means of a built-in diaphragm pump.
The DataRAM's light scattering configuration is optimized for the measurement of airborne particle concentrations, maximizing the unit's sensitivity. The detected signal is processed by state-of-the-art lock-in circuitry followed by high-resolution digitization, achieving ultimate detectability of atmospheric Rayleigh scattering fluctuations.
Large Character Screen With Menu Driven Display
In addition to the auto-ranging real-time concentration readout, the DataRAM provides users with a variety of informational displays on its 8-line LCD screen. Real-time and date, time weighted average concentrations, elapsed run times, and other information are easily viewed by selecting the appropriate screen using a scroll-through menu. Operating parameters and diagnostic information displays are also easily accessed through the menu using only six buttons on the front of the instrument.
Widest Measurement Range of any Real-Time Particulate Monitor
In addition to its high sensitivity, the DataRAM has the widest measurement range of any real-time aerosol monitor - from 0.0001 mg/m3 (0.1µg/m3) to 400 mg/m3. With a total span of almost seven decades, the DataRAM is capable of effectively measuring mass concentrations of airborne particles in industrial and ambient environments ranging from exceptionally pristine to extremely polluted. The instrument can also be used for atmospheric visibility measurements over a wide range of scattering coefficients (0.00015 to 600 km-1).
Exceptional Long-Term Stability
The DataRAM incorporates several technological advances that guarantee exceptional long-term stability. Near infrared source output feedback control provides drift-free operation and excellent temperature stability. For either manual or preprogrammed/automatic zeroing of the monitor, an electronically controlled latching solenoid valve diverts the entire filtered air stream through the optical sensing stage in order to achieve "zero" air reference. In addition, instrument span checks (secondary calibration) can be performed simply by turning a knob on the DataRAM's back panel, which inserts a built-in optical scattering/diffusing element into the filtered air stream. On-Screen diagnostic indicators and automatic shut-off for low battery conditions also help ensure the monitor's correct operation and data storage.
Maintenance-Free Operation
After passing through the optical sensing stage, all the particles are retained on a HEPA filter. Part of the filtered air stream is continuously diverted through and over all optically-sensitive areas (lens, light traps, etc.) to form a continuous air curtain that protects against particle deposition.
This design, in conjunction with a highly reliable diaphragm pump, ensures long-term maintenance-free operation. A membrane filter (with special holder included) can be substituted for the HEPA cartridge for gravimetric and/or chemical analysis of the particles collected downstream of the sensing stage.
Integral Large-Capacity Data Logger
The DataRAM has built-in large-capacity data logging capabilities. Stored information includes time and date, average concentrations, maximum and minimum values over selected periods, and tagging codes. Logged information can be retrieved either by scrolling through the DataRAM's display or by downloading to an external device such as a personal computer or printer.
Digital, Analog, and Alarm Outputs
The DataRAM provides a continuous digital output (by means of an RS232C data port) as well as an analog output, and a switched output for selectable high-level alarm with a built-in audible signal.
Accessories Expand Versatility and Enhance Accuracy
Several optional accessories are available for use with the DataRAM for a wide range of sampling applications.
A cyclone precollector allows respirable particle measurements.
An omni directional air sampling inlet (with or without a PM-10/2.5 head) is available for ambient monitoring.
Isokinetic inlet nozzles are available for duct sampling.
An in-line heater module allows accurate monitoring of solid particles in high humidity/fog conditions.
A sample dilution accessory permits elevated temperature and/or very high concentration monitoring.
Any standard serial communications software package can be used to download data.
Standard spreadsheet packages (such as Microsoft ExcelTM and LotusTM) easily access and analyze data log files for reviewing and archiving.
A portable battery-powered printer and cabling accessories are also available.
-15 to +60 degrees C/+5 to +140 degrees F (accuracy 0.05)
Relative Humidity Measurement Range (at 25 degrees C) :
0-100% (accuracy 2%, noncondensing)
Measurement/ Display Update Frequency :
1 per second
Data Logging Memory Capacity :
50,000 data points in up to 99 tags (data groups)
Elapsed Time Readout Range :
1 second to 100,000 hours (over 11 years), in seconds, minutes, and hours
Operating Environment :
-10 to +50 degrees C (14 to 122 degrees F); 10 to 95% RH, non-condensing
Storage Environment :
-20 to +70 degrees C (-4 to +158 degrees F)
Dimensions :
134 mm (5.28 in) H x 184 mm (7.25 in) W x 346 mm (13.63 in) D
Weight :
5.3 kg (11.7 lbs)
Safety Approvals & Certifications :
Complies with US FCC rules (part 15) and CE certified
Standard Accessories :
Universal voltage battery charger/power supply, standard HEPA filter cartridge, analytical filter holder, PC communications software disk, digital output cable, carrying case, and instruction manual
Sampling Flow Rate Range (user selectable) :
1 to 3 liters/min. (accuracy: 0.05 liters/min, adjustability: 0.1 liters/min)
Measurement/Display Integration Time Range (user selectable) :
1 to 60 seconds (selectable in 1 second steps)
Alarm Level Range (user selectable) :
Selectable over entire measurement range
Alarm Averaging Time :
Real time (1 to 10 seconds)
Data Logging Averaging Periods (user selectable) :
1 second to 24 hours
Number of Data Points in Memory :
10,000 (each point: average, minimum, and maximum concentrations)
Time Keeping and Data Storage Duration :
10 years typical
Display :
LCD 120 x 64 dots, 15 characters x 8 lines, 57.6 x 38.4 mm active area
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