A12 nCNC System
Sub-micron particle concentration from 1 nm - PSM 2.0 + A30 CPC
The Airmodus A12 nCNC is a Nano Condensation Nucleus Counter system that measures particles as small as 1 nm in diameter. It is a complete system consisting of a Particle Size Magnifier (PSM 2.0) and a Condensation Particle Counter (A30 bCPC default, or A20 CPC alternative, always calibrated to ~20 nm cut-off). The A12 classifies particles in the 1-12 nm range into 8 size bins by default (ACTRIS standard, up to 14 bins configurable) by scanning the PSM saturator flow, providing real-time inverted size distribution data of freshly nucleated particles directly in the MultiLogger software. Unlike SMPS-based systems, the A12 measures neutral and naturally charged particles without any particle charging - eliminating the need for a neutralizer and achieving dramatically better counting statistics (correction factor ~1.8 at 1.19 nm vs >6,000 for SMPS-based approaches). The system features automated working fluid fill & drain, integrated liquid bottles, and enhanced stability for long-term unattended operation. When combined with the Airmodus A-SMPS, the A12 provides continuous particle size distribution coverage from >1 nm to 1000 nm. Listed on the ACTRIS sub-10 nm whitelist.
Specifications
| Rohs | YES |
|---|---|
| Weight | ~21.9 kg combined (PSM 2.0 17.0 kg + A30 CPC 4.9 kg) |
| Power Max | ~380 W combined (PSM 280 W max + CPC 100 W max) |
| Size Bins | 8 default (ACTRIS standard), up to 14 configurable |
| Ce Marking | YES |
| Connectivity | PSM: RS-232, USB type B, Analog out BNC 0-10V. A30 CPC: Analog out BNC 0-10V, Pulse out BNC, RS-232, Ethernet RJ45, USB type B. All ASCII. |
| Detector Cpc | A30 bCPC default (~20 nm cut-off, up to 1,000,000 #/cm3); A20 CPC alternative (~20 nm cut-off, up to 150,000 #/cm3). Butanol only - PG not supported. |
| Operating Rh | 0-95% non-condensing; above 40% RH dilute with dry air via AFC + CSI sampling inlet (Nafion not recommended - diffusional losses sub-12 nm) |
| Actris Status | ACTRIS sub-10 nm Whitelist |
| Operating Temp | 15-30 C |
| External Vacuum | 100-350 mbar at NTP |
| Response Time T95 | < 2 s |
| Working Fluid Cpc | n-Butanol (>99%); PG variants not supported in A12 |
| Working Fluid Psm | Diethylene Glycol (DEG, >99%) |
| Operating Pressure | 90-105 kPa |
| Aerosol Sample Flow | 2.5 lpm (sample flow to CPC: 1 lpm) |
| Concentration Range | 0-1,000,000 #/cm3 (with A30 bCPC detector); 0-150,000 #/cm3 (with A20 CPC detector) |
| Measurement Range Nm | 1-12 nm (system); detector CPC standalone up to 1000 nm |
| Cutoff Dp50 Selectable | 1.19-12 nm (Nickel Chromium equivalent activation diameter, see calibration certificate) |
| Particle Size Range Nm | 1-14 nm (size-classified into bins) |
| External Compressed Air | 1.5-2.5 bar at NTP, particle/oil/water-free (dew point < 0 C); max 3.0 bar |
| Measurement Fields | [] |
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