納米顆粒計數器特點
精確納米顆粒計數技術于正丁醇的CPC冷凝顆粒計數技術,單計數模式(最多50000個顆粒/cm3),重合度校正:<10%,最多23000個顆粒/cm³,線性度:R²≥0.98(1…23000個粒子/cm³),23nm時計數效率在50±12%以內,41nm時計數率≥90%
由臨界孔控制的樣品流速:需要外部真空;
對于5431:由臨界孔控制的樣品流速:集成樣品空氣泵,無需外部真空
飽和器快門
帶微型泵的連續冷凝水排放
寬范圍電源:90…264 VAC,47…63 Hz,80…130 W
符合歐洲5和6標準的GPRE顆粒測量程序(PMP),第83條
適用于歐5和歐6認證的發動機排放
易于使用:通過LED進行狀態控制,顯示實時數字濃度數據,5475 GRIMM nanoSoftware for CPC
柴油顆粒過濾器的測試
稀釋系統中的粒子計數器
駕駛循環中的高分辨率濃度時間序列
Detection principle | Condensation Particle Counter |
---|---|
Working fluid | n-butanol (n-butyl alcohol) |
Output | Particle number concentration / cm³ |
Particle concentration range | 0 … 23,000 particles/cm³ |
Coincidence correction | < 10% |
Concentration linearity | R² ≥ 0.98 |
Concentration accuracy | < 10% |
Counting efficiency at 23 nm | 50 ±12%, independent of altitude above sea level |
Counting efficiency at 41 nm | ≥ 90%, independent of altitude above sea level |
False background counts | < 0.001 particles/cm³ |
Readability | 0.1 particles/cm³ |
Response time t10 … t90 | < 3 s |
Sample flow rate | 0.6 l/min (requires external vacuum) |