TSI 3410 Dust Aerosol Generator

Description of TSI 3410

The Dust Aerosol Generator 3410 disperses dry dust and powders for applications that need continuous and stable dosing with high accuracy. These defined test aerosols are commonly used in aerosol science, filter testing, industrial processes, and quality assurance tasks. With the interchangeable dispersing units different materials, e.g. soot, TiO2, cellulose, or ISO 12103 test dust can be provided at different output concentrations. A pressurized cover keeps the material dry even in
locations with higher ambient humidity.

The model 3410 comes in two versions (compliant to VDI 3491-3):

Model 3410U is for poor flow powders at low dosing rates. Here the powder is continually poured onto a metal ring where excess material falls off the side and back into the reservoir. The material is then transported to an ejector nozzle with ceramic tube. Shear forces in the ejector nozzle disperse and de-agglomerate particles, e.g. for soot down to 150 nm. The reservoir can be refilled while in operation to accommodate even longer dosing intervals.

Model 3410L is metering powder by a moving toothed belt. The well-defined spaces between the teeth ensure a constant and reproducible supply of powder. The particle concentration of the output aerosol can easily be adjusted over a wide range by changing the speed of the feed belt. The dispersion is again accomplished by an ejector nozzle with ceramic tube.
The ceramic tube considerably prolongs the time the nozzle can be used as some powders are quite abrasive. The specially designed reservoir with rotating scraper prevents the compaction of powder due to fill level which would cause uneven powder feed.

Features and Benefits

• Generation and de-agglomeration of dry particles from 0.2 µm
• Low (50 mg/m3) to high (160 g/m3) mass concentrations
• Constant dosing independent of fill level in reservoir
• Modular design, different feeding and dispersion units available
• Dry powder generation even in humid environments

Applications

• Instrument calibration and validation
• Aerosol research
• Tracer particles for laser velocimetry LDV, PIV, V3V (seed particles)
• Inhalation and toxicology studies
• Filter testing
• Dust holding capacity tests

Technical specifications of TSI 3410

Model 3410U

• Output Concentration Range: 50 mg/m3 to 20 g/m3
• Output Mass Flow: 0.05 g/h to 20 g/h
• Aerosol Flow Rate: 8 L/min to 35 L/min
• Dimensions (H x W x D): 260 x 320 x 400 mm (10.2 x 12.6 x 15.7 in)
• Weight: 10.4 kg (22.9 lbs)

Model 3410L

• Output Concentration Range: 0.5 to 160 g/m3
• Output Mass Flow: 2 g/h to 250 g/h
• Aerosol Flow Rate: 25 L/min to 67 L/min
• Dimensions (H x W x D): 320 x 320 x 400 mm (12.6 x 12.6 x 15.7 in)
• Weight: 12 kg (26.5 lbs)

Applicable to both models

• Compressed Air Supply: 1 to 6 bar (100 to 600 kPa)
• Maximum Overpressure: 50 mbar (0.5 kPa)
• Particle Size Range: 0.2 to >100 µm, dependent on material
• Can be refilled during operation: Yes
• Power Requirements: 100 to 260 VAC, 50 to 60 Hz