11-D portable aerosol particle size analyzer

Background introduction:
The 11-D type aerosol particle size spectrometer is designed to be compact, sturdy, and durable. It integrates all the advantages of GRIMM's previous generations of portable particle size spectrometers and improves the performance of the optical detection chamber, making 11-D have a longer lifespan (battery powered) and more convenient operation.
The above advantages ensure that the 11-D portable aerosol particle size spectrometer is at the forefront of the global level, which is very suitable for monitoring inhalable particles, throat particles, and lung dust. It is also suitable for monitoring PM values and particle number concentration/size distribution.
The 11-D portable aerosol particle size spectrometer is widely used in aerosol research and indoor air quality detection, and can be used for workplace monitoring, vehicle interior air monitoring, and process analysis. It can achieve real-time monitoring online/offline, with flexible operation and reliable performance.

Instrument features:

*Real time monitoring of particulate matter concentration, occupational dust quality concentration, and environmental PM values;

*Provide particle quantity concentration/particle size distribution, surface area concentration/particle size distribution, mass concentration/particle size distribution;

*31 equidistant particle size channels, traceable with standard particulate matter (PSL);

*Built in 47mm PTFE sampling filter membrane (GRIMM patented technology);

*Diversified data acquisition and communication methods (Bluetooth, USB, Ethernet, etc.) RS232）；

*The blowing gas circulates in the detection chamber to protect the laser light source and detector from pollution;

*The testing room is equipped with temperature and relative humidity sensors;

*Sampling flow rate of 1.2L/min, constant current control;

*Automatic self check upon startup to ensure high performance of the light chamber and gas circuit system;

Application case:

*Aerosol Science;

*Measurement of dust pollution;

*PM2.5 detection in indoor environments that meet VDI 4300 Part 11 standards;

*Air quality inside houses and motor vehicles (IAQ);

*Industrial process control;

*Workplace monitoring (compliant with EN481 standard);

*Permitted Exposure Limit (PEL) monitoring with high temporal resolution;

Technical parameters:
>Specifications:

Measurement parameters: Measurement of mass concentration at different particle sizes (inhalable particulate matter, inhalable particulate matter, inhalable particulate matter) and particle size/quantity concentration distribution of TSP, PM10, PM2.5, PM1.0, and PMcoarse that meet the EN481 standard;

Mass concentration range: 0-100000 μ g/m3;

Particle size range: 0.235-35.15 μ m;

Particle size channels: 31 channels, equidistant;

Concentration range: 0-3000000 units/L, optional diluter (10/100/adjustable dilution ratio);

Reproducibility:>97% of full range, meeting ISO21501-1;

>Function:

Detection principle: single particle light scattering (based on laser diode), aerodynamic focusing, full sampling volume without dead angle detection, no sampling boundary error;

Detector: Ultra fast signal processor, 2 × 16 raw data channels;

Time resolution: 6 seconds, 31 channels (adjustable for 6 seconds, 1.5, 10, 15, 30, 60 minutes);

Sampling flow rate: 1 second, 16 channels (i.e. 0.253-2.982 μ m or 2.982-35.15 μ m);

Sheath gas flow rate: 1.2 liters per minute, ± 3% constant flow, meets ISO21501-1, automatic control, automatically corrects flow rate according to altitude;

Sample collection: 0.4 liters per minute, protecting the light chamber;

Communication: 47mm PTFE filter membrane;

>Operation:

Interface: Keyboard or using a computer to run GRIMM operating software (wireless or wired);

Analog input: Bluetooth, USB， Ethernet, RS-232, USB storage;

Power supply: 1 channel (0-10V). Connect external sensors;

Power: 100-240VAC, 47-60Hz, Output: 13VDC, 2.5A, 5.4W;

Battery: Lithium battery, 10.8V, 6.8Ah, can provide continuous power for 10 hours, equipped with a speed charging charger;

Working conditions:+4 to+40 ℃, RH<95%， Non condensable, non explosive, and non corrosive gases;

Storage and transportation requirements: -20 to+50 ℃, RH<95%， Non condensable;

Appearance size: 27 × 13 × 7cm;

Weight: 2.1kg;

>Attachment

1179: GRIMM 11-D dedicated operating software;

1146-11-d: GPS receiver;

1152: Constant velocity sampler (wind speed of 4-25m/s);

1145A: Portable bag;

1158-TRH: External temperature and humidity sensor;

1159-10/1159-100: Dilution device (10x or 100x).