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GRIMM - Model 11-D -Dust Decoder - Portable aerosol spectrometer

FromGRIMM Aerosol Technik GmbH & Co. KG - a member of the Durag Group

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SECURE YOUR DISCOUNT TODAY! The most powerful dust monitor. The model 11-D, in its compact and rugged design, combines all advantages of the previous portable GRIMM aerosol spectrometers with the improved optical detection, long-term battery operation, and facilitated handling. This configuration places the 11-D in the leading position of the portable aerosol spectrometers for monitoring inhalable, thoracic and respirable dust, PM values, and particle number concentration. The 11-D is the optimal solution for reliable, flexible and real-time measurements for aerosol research and indoor air quality, e. g. at workplaces, interior of vehicles, or for process analysis.

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Enviro algorithm: TSP, PM10, PM4, PM2.5 PM1, PMcoarse | IAQ algorithm: pm10, pm2.5, pm1, inhalable, thoracic, respirable
real-time monitoring of particle number over size, particle surface over size, particle mass over size
additional information of particle number, particle surface, and dust mass distribution
31 equidistant size channels, PSL traceable
integrated 47 mm PTFE filter (GRIMM dual technology)
versatile data acquisition and communication interfaces (Bluetooth, USB, Ethernet, RS-232)
rinsing air for protecting laser and detector in optical cell
internal sensor for temperature (T) and relative humidity (RH) in optical cell
total inlet flow (1.2 L/min) analyzed in optical cell
self-test of all optical and pneumatic components for highest quality standards

aerosol science
PM2.5 in indoor environments according to VDI 4300, part 11
Indoor Air Quality (IAQ) in buliding and vehicles process control in industry
workplace monitoring (inhalable, thoracic, respirable) according to EN 481
monitoring of Permissible Exposure Limit (PEL) with high time resolution
dust pollution measurements

measurement range : dust fractions (EN 481) inhalable, thoracic, respirable Enviro algorithm: TSP, PM10, PM4, PM2.5, PM1, PMcoarse | IAQ algorithm pm10, pm2.5 pm1 number concentration and size distribution
particle size range : 0.253 - 35.15 μm
size channels : 31 in total, equidistant
particle number : 0 - 3 000 000 particles/liter, diluter available for higher concentrations
dust mass : 0 μg/m³ - 100 mg/m³
reproducibility : >97% for total measuring range, according to ISO 21501-1

particle detection principle : light scattering at single particles with diode laser; detection volume aerodynamically focused, no border zone error
detector : fast signal processing, 2 x 16 raw data channels
time resolution : 6 s, 31 channels (selectable storage intervals 6 s, 1, 5, 10, 15, 30, 60 min) 1 s, 16 size channels (0.253 μm < Dp <2.982 μm < Dp < 35.15 μm)
volume flow rate : 1.2 L/min, ± 3% constant due to self-regulation, according to ISO 21501-1; automatic altitude correction
rinsing air : 0.4 L/min, protection for laser optics, reference air for self-test
gravimetric control : 47 mm PTFE filter

operation : keypad or PC with GRIMM software (wireless or data cable)
interfaces : Bluetooth, USB, Ethernet, RS-232, SD card
analog input : 1 port (0 - 10 V) for external sensors
power supply : in: 100 - 240 VAC, 47 - 60 Hz, out: 12 VDC, 2.5 A
power consumption : 5.4 W
battery : intelligent Li-lon-battery, 10.8 V, 6.8 Ah for minimum 8 h operation with desktop smart quick charger
dimensions : 27 x 13 x 7 cm / 10.5 x 4.8 x 2.6 inches (L x W x H)
weight : 2.1 kg / 4.6 lbs
operating conditions : +4 to +40°C (39 - 104°F), RH < 95%, non-condensing, non-corrosive, or explosive gases
storage and transport : -20 to +50°C (-4 - 122°F), RH<95%