TSI 3340A Laser Aerosol Spectrometer

0.09 – 7.5 µm

The TSI 3340A Laser Aerosol Spectrometer measures particle sizes from 0.09 µm to 7.5 µm with a resolution of ≤2.5% at 0.1 µm. It offers up to 100 user-configurable channels and supports concentrations up to 18,000 particles/cm³. The system features a sample flow rate of 10–95 cm³/min, NIST-traceable PSL calibration, and a touchscreen interface via an integrated Surface Pro tablet. Commonly used in AHAM AC-1 testing, the 3340A is also paired with the TSI APS 3321 for extended aerosol analysis.

Product Info Related Products

Particle Size Range	0.09 – 7.5 µm
Resolution	≤2.5% at 0.1 µm
Concentration Range	Up to 18,000 particles/cm³
Counting Efficiency	>50% at 90 nm
Zero Count	<1 particle in 5 minutes
Sample Flow Rate	10 – 95 cm³/min (±5%)
Sheath Flow Rate	650 cm³/min (±5%)
Calibration	NIST-traceable PSL spheres
User Interface	Surface Pro tablet with touchscreen and keyboard
Data Channels	Up to 100, user-configurable
Operating Temperature	10 – 30 °C
Humidity Range	10 – 90% RH non-condensing
Altitude	Sea level – 4,000 m
Power	100 – 240 VAC, 50/60 Hz, 200 W
Dimensions (W×D×H)	56 × 43 × 25 cm
Weight	24 kg (53 lb)

Ultra-high Sensitivity & Superior Resolution
Control software running on a Microsoft® Surface Pro® tablet with 12.3-inch touchscreen and keyboard
Intuitive LabView™ based software
100 particle size channels: user configurable. Users can zero in on a specific size range or match the resolution of a different instrument
User adjustable flow rate: Allows the user to optimize the flow rates for a specific application at the click of a mouse
Patented wide angle optics and intracavity laser
Highly sensitive photodetectors, automated gain ration adjustment and laser reference compensation