The 3321 Aerodynamic Particle Size Spectrometer (APS3321) is a high-performance, multi-purpose next-generation particle measurement instrument with a unique design that can simultaneously measure the following two properties:
Aerodynamic particle size: APS3321 can measure the aerodynamic particle size of particles in real-time through precise time-of-flight (TOF) technology, with a particle size measurement range of 0.5-20 μ m. Due to the fact that the aerodynamic particle size counting based on flight time is only related to particle shape, it avoids the interference of refractive index and meter scattering. Therefore, the instrument has better measurement performance for particle size than similar optical scattering instruments. In addition, the monotonic corresponding curve of time-of-flight particle size measurement ensures high resolution throughout the entire particle size measurement range.
Optical scattering intensity: Through optical scattering measurement technology, the measured particle size of APS3321 can reach 0.37-20 μ m. Although optical scattering intensity is not always a reliable characterization parameter for particle size, it is still an interesting parameter for people. APS3321 can provide data on the aerodynamic particle size and optical scattering intensity of the same particle separately and store them separately. Particle size spectrometer
Detection technology | Using a separate high-speed processor to detect the flight time of individual particles in accelerated airflow |
particle size range | 0.5-20 μ m (aerodynamic diameter) 0.37-20 μ m (light scattering diameter) |
Aerodynamic diameter resolution rate | 0.02μm(1μm),0.03μm(10μm) |
resolution | Particle size resolution: 32 channels/10 times particle size, 52 channels, non correlated mode 1024 bit raw flight time data (4ns/bit) Light scattering intensity resolution: 16 channel light scattering intensity, 64 channel raw light scattering intensity data |
Detecting particle types | Suspended particulate matter and non-volatile liquids |
Zui large particle detection concentration | 1000 pieces/cm3At 0.5 μ m, the probability of overlapping events occurring is less than 5% |
Zui small particle detection concentration | 0.001 pieces/cm3 |
Concentration range | ± 10% reading value plus statistical counting deviation |
Aerodynamic particle size maximum speed | >200000 pieces/s |
Total sampling flow | 5.0L/min |
Sheath gas flow rate | 4.0L/min |
Sample gas flow rate | 1.0L/min |
operate temperature | 10~40℃ |
Atmospheric pressure correction | Automatic calibration within 400 to 1030mbar (complete calibration within 700 to 1030mbar) |
Laser source | 30mV, 655nm diode laser |
detector | Avalanche type photomultiplier tube (APD) |
Front display panel | 320 × 240 pixels |
operation temperature | 10~40℃ |
Working humidity | 10~90% |
supply voltage | 110-240VAC, 50/60Hz, 100W or 24VDC |
Communication method | RS~232 (9-pin) interface |
Output | Digital I/O: Configure analog output: BNC (0-10V) Pulse analog output: BNC Flight time digital output: BNC external controller with 15 pin interface (3 inputs/3 outputs) and 2 analog input interfaces |
External dimensions | Aerosol injection port: outer diameter 3/4 inch Case size (LWH): 38cm × 30cm × 18cm |
weight | 10kg |