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Cloud Condensation Nuclei (CCN) counter
Cloud Condensation Nuclei (CCN) counter

Cloud Condensation Nuclei (CCN) counter

Droplet's CCN-100/200 measures the count and size of individual aerosol particles that can form into cloud droplets. Its fast response time allows use in either airborne or ground-based stations.



Enable climate models and accurate predictions of climate change with the CCN-100/200 – the only instrument of its kind to measure CCN concentrations in space and time.
Measure quickly changing conditions in airborne and ground-based applications with fast response, uninterrupted flow, and a multi-channel, optical particle counter.
Get supersaturation as low as 0.07% and as high as 2%, plus complete automation of up to 250 programmable and scanned supersaturation settings.
Minimize size and buoyancy effects with cylindrical geometry – giving you more accurate measurements for your critical research.
Get real-time control, data display, and data logging with a user-friendly virtual instrument panel.

Technology

Supersaturation generation and particle light-scattering

  • A continuous-flow thermal-gradient diffusion chamber measures aerosols that can act as cloud condensation nuclei.
  • Inside the chamber, a thermodynamically unstable, supersaturated water vapor condition is created by taking advantage of the difference in diffusion rates between water vapor and heat.
  • The supersaturated water vapor condenses on the cloud condensation nuclei in the sample air to form droplets, which are counted and sized.

Specifications

Parameter

Specification

Aerosol Medium

Air, 5 - 40 °C (41 - 104°F)

Number Concentration Range

Depends on supersaturation:

  • 6,000 particles/sec at supersaturations below 0.2%
  • 2,000 particles/sec at supersaturations above 0.3%

Measured Particle Size Range (from OPC, after supersaturation)

0.75 – 10 µm

Number of Particle Size Bins

20

Sampling Frequency

1 Hz / 1 Second

Supersaturation Range

0.07% - 2.0%

Time Required for Supersaturation Change

~30 seconds for 0.2% change

Maximum Number of Automatically Scanned Supersaturation Settings

250

Optical Particle Counter Laser

660 nm, 35 mW

Flow Range

  • Total flow: 200 – 1000 vol. cc/min (factory calibrated at 500 Vccm)
  • Sample flow: 20 – 100 Vccm
  • Sheath flow: 180 – 900 Vccm

Flow Control

  • Total flow is adjustable from within CCN Counter software
  • Sample/Sheath flow ratio is adjustable using manual metering valve

Pump

  • Solenoid pumps for water; diaphragm pump for air

Side Panel Connections

  • System power switch
  • LED for overall system power
  • Watchdog light
  • Air vents
  • Inlet and exhaust valves
  • 28 VDC pin connector
  • Ethernet connection
  • USB connection
  • Mouse and keyboard connections
  • Touchscreen connection
  • Video connection
  • Serial data port
  • LED power connection

Computer System

  • On-board Intel® Celeron® 1 GHz processor
  • 512 MB RAM
  • 80 GB hard drive for data storage
  • User interface via standard keyboard and monitor (included)

Data System Interface

RS-232, 9.6 Kb/sec Baud Rate (single CCN Counter) or 57.6 Kb/sec (Dual CCN Counter)

Features for Easy Aircraft Mounting

  • Rack-mount compatible
  • Center of gravity located 15.5” from bottom of back base plate
  • Instrument plumbing system sealed for operation on pressurized aircraft

Power Requirements

28 VDC

Current

CCN-100: 15 A at startup, nominal 7 A during regular operation
CCN-200: 25 A at startup, nominal 20 A during regular operation

Size (for both CCN-100 and 200)

For lab use (with frame):

  • 35.0” H x 19.3” W x 15.6” D /
  • 88.9 cm H x 48.9 cm W x 39.7 cm D

For aircraft use (without frame):

  • 32.0”H x 15.25” W x 10.6 D /
  • 81.3 cm H x 38.7 cm W x 27 cm D

Weight

CCN-100:

  • For lab use (with frame): 35.2 kg / 77.5 lb
  • For aircraft use (without frame): 29.0 kg / 64.0 lb

CCN-200:

  • For lab use (with frame): 50 kg / 110 lb
  • For aircraft use (without frame): 43.8 kg / 96.5 lb

Environmental Operating Conditions

Temperature: – 40°C (41 – 104 °F)
RH: 0 – 100% RH non-condensing



Get more info:

Contact the Envicontrol team

Droplet CCN datasheet

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Civil engineer with industry and metrology background, Stéphane had joined Envicontrol as operations manager in 2009. As a partner and general manager as of 2013, he built a wider and stronger company structure while helping to expand the product portfolio and embrace new markets.
Thanks to Stéphane’s strategic vision and stubborn work, Envicontrol is more than ever in order of battle to take up the future challenges with dedicated management team and skilled workforce.
Thank you and farewell, Chef!

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Droplet's CCN-100/200 measures the count and size of individual aerosol particles that can form into cloud droplets. Its fast response time allows use in either airborne or ground-based stations.

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Contactinformation

Envicontrol Belgium

P +32 (0) 81 713 491

Rue Phocas Lejeune 25
B-5032 Les Isnes
Belgium

Envicontrol Deutschland

P +49(0)221 7907 7054

Waidmarkt 11
DE-50676 Köln
Deutschland

Envicontrol France

P +33(0)1 39 76 04 19

Route de Sartrouville 54
F-78230 Le Pecq
France

Envicontrol Nederland

P +31(0)418 651 158

Valeton 25
5301 LW Zaltbommel
Nederland
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