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SMPS+C 5420 | 5420-TR-CEN
19" scanning mobility particle sizer and counter

SMPS+C system in 19” rack-design, available as model 5420-TR-CEN with a size range of 10 nm to 1,094 nm for full compliance with CEN/TS 17434:2020 or as model 5420 version with M DMA for a size range of 5 nm to 350 nm. It is designed for unattended 24/7 real-time monitoring of UFP in ambient air. 


Functionality: Electrostatic classification and condensation particle counter

  • Precise nanoparticle sizing and counting: n-Butanol based CPC with exchangeable Vienna Reischl Type DMAs 
    • CEN/TS compliant with L-DMA: 10 … 1,094 nm
    • Lower sizing limit with M-DMA: 5 … 350 nm
  • Compact 19” design
  • Flow rates controlled by critical orifices
  • Integrated pumps for sample and sheath air
  • Saturator shutter
  • Long-term butanol and condensate tanks

  • Harmonized UFP sizing and counting
  • Low particle losses, high size resolution
  • Easy integration in measurement stations
  • No external vacuum required
  • Unattended 24/7 operation for 3 weeks
  • Prompt transport without butanol drying
  • Regulatory monitoring, e.g. governmental networks
  • Compliant for use in ACTRIS 
  • Fundamental aerosol research
  • Environmental aerosol research
  • Nanotechnology process monitoring
  • Studies on atmospheric nucleation
  • Nanoparticle transport 
  • SMPS+C 5420
  • SMPS+C 5420-TR-CEN
Measuring principleElectrostatic classification in DMA and detection in condensation particle counter
Measuring variableParticle size distribution, dN/dlogD (1/cm³)
Particle size range5 … 350 nm (GRIMM M-DMA)10 … 1094 nm (GRIMM L-DMA)
Particle size channelsStepping mode: 45 … 255Scanning mode: 64 per decadeLogarithmic spacing
Maximum particle concentrationUp to 107 particles/cm³ *
Minimum scan time150 s
Sample inlet pipeNafion® based dryerDrying of aerosol flow to ≤ 40% RH
Total inlet flow rate1.5 l/min (through sample pipe)
CPC working fluidn-butanol (n-butyl alcohol)
CPC particle concentration rangeSingle count mode: up to 150,000 particles/cm³ Photometric mode: up to 107 particles/cm³ **
CPC particle concentration accuracySingle count mode: ≥ 95%Photometric mode: ≥ 90%
CPC data output interval1 … 90 s (user selectable)
CPC counting efficiencyD50 = 4 nm (determined with tungsten oxide particles)
CPC linearity slope1 ± 0.05
CPC response time t10 … t90< 3 s
CPC sample flow rate Qs0.3 l/min
DMA sheath flow rate Qsh3.0 l/min
Flow controlCritical orifices with stabilized temperature
DMA resolution Qsh / Qs = 10
DMA sizing accuracy≤ 3% of nominal diameter
HV moduleIntegrated in DMA+5 … +10,000 V (neg. polarity on request)
Standards and certificatesISO 15900:2009ISO 27891:2015
Internal sensorsT, pabs and Δp across inlet in DMA pabs and Δp across inlet in CPC
ConnectivityUSB, USB flashdrive, RS-232, analog input for meteorological sensors, analog pulse output
Operation and displayStatus LEDs and LCD display on CPCGRIMM 5477 nanoSoftware for sizers on PC
Power requirements110 … 240 VAC; 50 / 60 Hz; maximum 130 W
Ambient aerosol conditionsTemperature: -20 … 40 °C (-4 … 104 °F)Humidity: 0 … 95 % RH, non-condensingAbsolute pressure range: 700 … 1,100 mbar
Transport and storage0 … +50 °C (32 … 122 °F), RH < 95%
InstallationIn 19ʺ instrument rack***Indoor or outdoor**** protected environment Temperature: 20 … 30 °C (68 … 86 °F)Humidity: 0 … 95% RH, non-condensing
System componentsCPC 5420 5438-1.5 butanol and condensate tank unit182-1.5 1.5m sample pipe
Dimensions (h x w x d)CPC: 22 x 48 x 41 cm (8.7 x 19 x 16 in); 5 height units 19ʺTank unit: 9 x 48 x 32 cm (3.5 x 19 x 12.6 in); 2 height units 19ʺHeight with sample pipe: 182 cm (71.7 in)
WeightCPC with M-DMA: 21.9 kg (48.3 lbs)CPC with L-DMA: 24.1 kg (53.0 lbs)Tank unit: 4.1 kg (9 lbs)Total with sample pipe: 32.6 … 34.8 kg (71 … 76.7 lbs)

* Depending on used  aerosol neutralizer

** For short-term measurements

*** Requires 19ʺ rack rails

**** Outdoor installation requires weather protection shelter


Measuring principleElectrostatic classification in DMA and detection in condensation particle counter
Measuring variableParticle size distribution, dN/dlogD (1/cm³)
Particle size range10 … 1,094 nm (GRIMM L-DMA)
Particle size channelsStepping mode: 45 .. 255Scanning mode: 64 per decadeLogarithmic spacing
Maximum particle concentrationUp to 107 particles/cm³ *
Minimum scan time150 s
Sample inlet pipeNafion® based dryerDrying of aerosol flow to ≤ 40% RHMaximum particle losses ≤ 25% at 10nm
Total inlet flow rate1.8 l/min (through sample pipe)
CPC working fluidn-butanol (n-butyl alcohol)
CPC particle concentration rangeSingle count mode: up to 100,000 particles/cm³ Photometric mode: up to 107 particles/cm³ **
CPC particle concentration accuracySingle count mode: ≥ 95%Photometric mode: ≥ 90%
CPC data output interval1 … 90 s (user selectable)
CPC counting efficiencyD50 = 10 ± 1 nmD90 ≤ 20 nm
CPC linearity slope1 ± 0.05
CPC response time t10 … t90< 2 s
CPC sample flow rate Qs0.6 l/min
DMA sheath flow rate Qsh3.0 l/min
Flow controlCritical orifices with stabilized temperature
DMA resolution Qsh / Qs = 5
DMA sizing accuracy≤ 3% of nominal diameter
DMA parametersRi = 13 mm; Ro = 20 mmL = 350 mm (GRIMM L-DMA)
HV moduleIntegrated in DMA+5 … +10,000 V (neg. polarity on request)
Standards and certificatesISO 15900:2009CEN/TS 17434:2020ISO 27891:2015prEN 16976:2023List of ACTRIS compliant instruments
Internal sensorsT and RH in aerosol inlet and sheath air flowT, pabs and Δp across inlet in DMApabs and Δp across inlet in CPC
ConnectivityUSB, USB flashdrive, RS-232, analog input for meteorological sensors, analog pulse output
Operation and displayStatus LEDs and LCD display on CPC15.6ʺ touch sensitive monitorGRIMM 5477 nanoSoftware for sizers on PC
Power requirements110 … 240 VAC; 50 / 60 Hz; maximum 130 W
Ambient aerosol conditionsTemperature: -20 … 40 °C (-4 … 104 °F)Humidity: 0 … 95 % RH, non-condensingAbsolute pressure range: 700 … 1,100 mbar
Transport and storage0 … +50 °C (32 … 122 °F), RH < 95%
InstallationIn 19ʺ instrument rack***Indoor or outdoor**** protected environment Temperature: 20 … 30 °C (68 … 86 °F)Humidity: 0 … 95% RH, non-condensing
System componentsCPC 5420-TR-CEN5438-1.5 butanol and condensate tank unit182-1.5 1.5m sample pipeMeasurement PC with 15.6ʺ monitor
Dimensions (h x w x d)CPC: 22 x 48 x 41 cm (8.7 x 19 x 16 inch); 5 height units 19ʺMonitor: 31 x 48 x 27 cm (12 x 19 x 10.6 inch); 7 height units 19ʺTank unit: 9 x 48 x 32 cm (3.5 x 19 x 12.6 inch); 2 height units 19ʺHeight with sample pipe: 213 cm (83.9 inch)
WeightCPC with L-DMA: 24.1 kg (53.0 lbs)Monitor and PC: 6.6 kg (14.6 lbs)Tank unit: 4.1 kg (9 lbs)Total with sample pipe: 34.8 kg (83 lbs)

* Depending on used  aerosol neutralizer

** For short-term measurements

*** Requires 19ʺ rack rails

**** Outdoor installation requires weather protection shelter

  • Optional
5523-Ni - Ni-63 (95 MBq) aerosol neutralizer
5525-X -\tSoft X-ray (<4.99 keV) aerosol neutralizer
5540 - Sheath air dryer and adsorber
5524-X - Soft X-ray (<11 keV) aerosol neutralizer