- 100-240 VAC 50/60 Hz
- USB interface – Modbus communication
- 0 – 25 LPM outlet flow rate range
- Outlet pressure: 1-2 bar (gauge)
- Outlet gas temperature (nominal): above ambient temperature (+ 30°C)
- Inlet gas: N2 or Air compressed at 25 (± 5) °C; 1-2 bar (gauge)
FEATURES AND BENEFITS
- Short warm-up time (< 15 mins)
- Wide particle size range (2 nm† – 200 nm)
- High concentrations (> 1 x 107 #/cm)
- Remote data logging (USB, LAN)
- Stable and repeatable (±1% GSD; GMD)
- One-touch presets for quick select size modes with customisable settings
- Temperature Settings: (Mode 1: 1000°C, Mode 2: 1100°C)
As Simple as
Pressing a Button
°Silver Particle Generator generates solid silver aerosols used for calibrating particle counters, emission studies, and air quality research an easy and effective way.
APPLICATIONS
- CPC calibration (ISO 27891, 15900, CENS)
- Euro VI and VII PMP
- PCRF & VPR validation
- PN-PEMS calibrations
- Mask filtration efficiency studies
- Line-loss measurements
- Filter loading
Example for Calibration of a CPC
To generate sintered silver particles of sizes 2 – 100 nm we recommend to use the following setup
The SPG generates silver agglomerates between 2 – 200 nm.
To grow the particles to larger sizes, we recommend to use a Residence Chamber. In order to obtain spherical particles, as required by ISO 27891:20151, you require a sintering stage.
The agglomerates are then size selected (2 – 300 nm) in the Electrostatic Classifier 1 and guided into the Sintering Stage to generate spherical particles. The recommended temperature is 400°C (Ku et al., 2006)2.
The spherical particles are then size confirmed in the Electrostatic Classifier 2 and counted in the CPC. For a CPC calibration you then require a comparison of Electrometer vs. your CPC under test to be calibrated using the size selected spherical particles ( 15 – 90 nm).
1 ISO 27891:2015, Aerosol particle number concentration – Calibration of condensation particle counters., International Organization for Standardization, Geneva, Switzerland, 2015.
2 B. K. Ku and A. D. Maynard, “Generation and investigation of airborne silver nanoparticles with specific size and morphology by homogeneous nucleation, coagulation and sintering,” Journal of Aerosol Science, vol. 37, no. 4, pp. 452–470, Apr. 2006, doi: 10.1016/j.jaerosci.2005.05.003