Ambient Air Monitors


Particles Plus®
Ambient Air Monitor

Model 11000

The 11000 is a low cost, high-accuracy dust monitor designed for outdoor particulate and gas monitoring. These robust monitors provide reliable, accurate measurement of airborne contamination allowing for the detection of environmental and public health concerns. The first real time monitor to provide 30 accurate particulate size channels at higher concentrations.

Realtime Data
30 particle size channels recorded by the 11000 Monitor are stored in an internal 65,000 record non-volatile memory at user-defined data sampling rates (1 second to 99 hours). The high time-resolution of the Model 11000 measurements provides a near-instantaneous look at changing airborne particulate concentrations, leading to a well-defined model of local point source influences that may disproportionately affect air quality.

Highest Concentration OPC based Monitor
The 11000 series has the highest concentration available in the market for an optical particle counter based ambient air monitor. With a flow rate of 1.2 LPM the sensor is capable of accurately counting and sizing particles up to 30,000,000 particles/ft³ (1,000 particles/cm³). The monitor can handle TPM concentrations up to 20,000 μg/m³ before experiencing coincidence loss.

em 11000 chart

Airborne Pollution and Environmental Research
Perimeter or Fence-line Monitoring for Construction, Remediation or Hazardous Waste Sites
Mine and Quarry Fence-line Monitoring for dust control operations
City Wide or Community Air Pollution Monitoring
Roadside Emissions Monitoring
Medical Facilities Property Monitoring
Power Line Wild-Fire Monitoring
Environmental Disasters
Monitor for 24 hours a day, 7 days a week, 365 days a year
Concurrent measurement of multiple, user selectable PM sizes from 0.3um to 10 µm including TPM of particles up to 25 µm
Closed-loop humidity control for incoming airstream (to provide more accurate particulate sizing)
Closed-loop condensation control within the enclosure
Perform in-line gravimetric sample collection for correction reference calibration
Aerosol Concentration Range of 0.01 to 20,000 ug/m3
ULTRAGUARD® Fiberglass reinforced polyester NEMA 4 rated outdoor tamper-proof enclosure with internal thermal control
Optional pole or tripod mount options
Optional Cloud based data management software subscription available for remote
Size Range:0.3 (300 nm) to 25 µm
Size ChannelsFactory calibrated at 0.3, 0.5, 0.7, 1.0, 2.5, 5.0µm variable binning
Flow Rate / Accuracy1.2 LPM (0.04 CFM) / +/- 3%
Aerosol Concentration Range0.01 to 47,000 µg/m³ (2500 particles /cm³, 70,000,000 particles/ft³)
Light SourceLong life laser diode
Resolution0.0003 µg/m3
Zero StabilityNo appreciable drift
Count ModesCumulative/differential count/m³ & count/ft³, and mass concentration (PM)
Log IntervalMinimum 1 second with no hold time, maximum 99 hours
CalibrationNIST traceable
Internal Vacuum PumpInternal pump with automatic flow control
Number of Channels6 to 30
Communication ModesMODBUS over RS485 or USB direct (USB to IMS-9K software utility)
Optional Communication ModesFuture Plug & Play (optional) Communication Modules - Wi-Fi, LoRaWAN and Ethernet
Environmental Sensor(Optional) Temperature +/-2C, Relative Humidity +/-9%, co2 +/-50ppm, Barometric Pressure +/-2.5mbar
AlarmAlarms for all particle values, environmental sensors, flow and sensor failure
Optional SensorsNDIR CO2 (0-5000 ppm, resolution 1 ppm, accuracy ±1% FS, Response rate 20 seconds) TVOC PID, 0-50 ppm / min. detection level 5 ppb, accuracy ±1.5%, Response rate <3 seconds
AlarmAlarms for all particle values, environmental sensors, flow and sensor failure
Instrument CalibrationParticle sensor recommended once per year
User Calibration Field Calibration of Temperature, Humidity, CO2 and TVOC possible with included utility software
External SurfaceULTRAGUARD® Fiberglass reinforced polyester - compression molded SMC box and Cover
EnclosureTemperature controlled ventilation blower and heated backplate for environmental extremes
Heated InletHumidity sensor controlled heated inlet to remove hydroscopic effects
Dimensions (L x W x H)5.5” x 8.4” x 21” (13.9 cm x 21.3 cm x 53.3 cm) includes barb fittings
Weight5.7 lbs. (2.6 kg)
AccessoriesQuick start guide, operating manual on USB flash drive, mounting feet
Optional AccessoriesPrinted manual, data cable, pole mounting hardware kit
Data StorageInternal 65,000 sample records (rotating buffer) including particle count data and environmental data
Sample Time1 second to 99 hours
Power110 to 240 VAC 50/60 Hz universal in-line power supply
Operating Conditions-4º to 122ºF (-20º to 50ºC) / 20% to 95% non-condensing
Warranty1 year limited warranty. Extended warranties available.

EM 11000 diagram