MODEL 11-D

THE DUST DECODER

The all-purpose 11-D: Decode Your Dust

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.

Overview

  • real-time monitoring of particle number, occupational dust mass fractions, and PM values
  • 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

Applications

  • 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

Technical Data

measurement range

dust fractions (EN 481) inhalable, thoracic, and respirable TSP, PM10, PM4, PM2.5, PM1, and PMcoarse 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

± 3% 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%

Accessories

1179

advanced GRIMM software for 11-D

1144B

Hard-sided carrying case with foam inserts

1146

GPS sensor

1152

isokinetic sampling probe for 4 - 25 m/s

1158-TRH

external sensor for temperature and relative humidity

1159-10, 1159-100

capillary diluter (1:10 or 1:100)

 

SOFTWARE

GRIMM developed a powerful software to visualize, process, and import as well as export your valuable measurement data.
This easy-to-use program is compatible to Windows XP and all later versions.

Please contact us for your for free trial version if you already own a GRIMM measurement device or more information if you are in the process of finding your measurement solution.

GET YOUR FREE TRIAL NOW

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