Durag Group GRIMM CPC 5421 Condensation Particle Counter

The GRIMM CPC 5421 is a 19-inch condensation particle counter designed for real-time ultrafine particle (UFP) monitoring in ambient air. The platform is available in two versions: the standard CPC 5421 with a D50 of 4 nm, and the CPC 5421 CEN with a D50 of 10 nm for compliance with EN 16976. DURAG positions the CPC 5421 series for continuous nanoparticle counting in ambient air monitoring, research, and other applications requiring precise particle number concentration measurement.

The CPC 5421 uses n-butanol-based condensation particle counting to measure particle number concentration in real time. DURAG highlights features such as droplet size control, single count mode up to 150,000 particles/cm³, photometric mode up to 10⁷ particles/cm³, an integrated sample pump, and long-term butanol and condensate tanks for extended unattended operation. The CEN version is specifically intended for 24/7 monitoring of ultrafine particles in ambient air in line with EN 16976 requirements.

Available in Canada through Westech Industrial, the GRIMM CPC 5421 is a strong fit for customers who need reliable ultrafine particle monitoring as part of ambient air measurement programs, research projects, or regulatory-focused monitoring applications. Westech can help customers evaluate the right particle monitoring technology for their application and site requirements.

Durag_GRIMM CPC 5421 Condensation Particle Counter

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Description

  • 19-inch rack-mounted condensation particle counter
  • n-Butanol based CPC for precise nanoparticle counting
  • Standard version: D50 = 4.0 nm
  • CEN-compliant version: D50 = 10 nm
  • Single count mode up to 150,000 particles/cm³
  • Photometric mode up to 10⁷ particles/cm³
  • Integrated sample pump
  • Flow rate controlled by critical orifice
  • Saturator shutter
  • Long-term butanol and condensate tanks for extended operation.

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Manufacturer Info

The DURAG Group is a global provider of intelligent solutions for process and environmental monitoring, combustion and safety monitoring, gas analysis, and continuous emissions monitoring systems. With decades of industry experience, DURAG supports safer, more efficient, and more sustainable industrial operations.

Website: https://www.durag.com/

SPECS

Detection principle:
Condensation Particle Counter
Measured variable
Particle number concentration / cm³
Working fluid:
n-butanol (n-butyl alcohol)
Particle concentration range:
Up to 150,000 particles/cm³ in single count mode and up to 10⁷ particles/cm³ in photometric mode
Particle number concentration:
0 … 3,000,000 particles/l
Data output interval
1 to 90 seconds, user selectable
CPC sample flow rate:
0.3 l/min standard; 0.3 or 0.6 l/min for the CEN version depending on configuration
Connectivity:
USB, USB flash drive, RS-232, analog input for meteorological sensors, analog pulse output
Power requirements:
110 to 240 VAC, 50 / 60 Hz, maximum 130 W
Ambient aerosol conditions:
-20 to 40 °C, 0 to 95% RH non-condensing, 500 to 1,100 mbar
Installation:
19-inch instrument rack, indoor or outdoor protected environment with weather protection shelter for outdoor use.

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PRODUCT FAQ's

What is the GRIMM CPC 5421 used for?
The GRIMM CPC 5421 is used for real-time ultrafine particle monitoring by measuring particle number concentration in ambient air. DURAG lists applications including regulatory monitoring, environmental aerosol research, atmospheric nucleation studies, nanoparticle transport, and nanotechnology process monitoring.
What particulate fractions can the EDM 280 measure?
The EDM 280 measures TSP, PM10, PM4, PM2.5, PM1, and PMcoarse, and it also provides particle size distribution data across 72 size channels.
What is the difference between the CPC 5421 and CPC 5421 CEN?
The standard CPC 5421 has a D50 of 4.0 nm, while the CPC 5421 CEN has a D50 of 10 nm and is intended for full compliance with EN 16976 for 24/7 ultrafine particle monitoring in ambient air.
What makes the CPC 5421 suitable for long-term monitoring?
DURAG highlights features such as integrated sample pumping, long-term butanol and condensate tanks, and unattended operation for up to 6 weeks on the 0.3 l/min sample flow version. These features support continuous operation with reduced operator intervention.
Can the CPC 5421 be used in ambient air monitoring stations?
Yes. DURAG describes the CPC 5421 series as suitable for regulatory monitoring, governmental networks, ACTRIS-compliant use, and integration into 19-inch rack-based measurement stations.
Can Westech assist with selecting the right ultrafine particle monitor for a Canadian project?
Yes. Westech Industrial can help review monitoring objectives, installation constraints, and application requirements to determine whether the GRIMM CPC 5421 or CPC 5421 CEN is the right fit for an ambient air monitoring program in Canada.