ccn
CCN-200
Droplet Envea Group Dual-Column CCN counter. Two parallel columns sweep different SS% simultaneously; otherwise mechanically and electrically identical to CCN-100. Wire-format A/B field ordering pending hardware verification, so read_commands are not yet wired.
Droplet Envea Group Dual-Column CCN counter. Two parallel columns sweep different SS% simultaneously; otherwise mechanically and electrically identical to CCN-100. Wire-format A/B field ordering pending hardware verification, so read_commands are not yet wired.
Specifications
| Columns | 2 |
|---|---|
| Doc Ref | DOC-0128 Rev J1 |
| Opc Bins | 20 |
| Manufacturer | Droplet Envea Group |
| Protocol Note | Same CR-terminated H/C two-line shape as CCN-100. A/B column field ordering on the wire not enumerated in DOC-0128 section 13.15; verify on first hardware contact. |
| Size Range Nm | 50 - 10000 |
| Flow Total Vccm | 500 |
| Typical Use Cases | Aerosol-cloud interaction studies; CCN spectra (#/cc vs SS%); ground-based and airborne field campaigns; column-A/column-B simultaneous SS comparison on the dual variant. |
| Measurement Principle | Cloud condensation nuclei counter. A wetted thermal-gradient column generates a controlled water-vapour supersaturation; particles that activate to droplets are counted by an OPC. The Kohler curve relates the column temperature gradient to the SS%, so sweeping the gradient sweeps the activation threshold. |
| Flow Sample Sheath Ratio | 1:10 |
| Dashboard Measurement Fields | [] |
| Images | [] |
| Attachments | [] |
| Measurement Fields | [] |
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