Veo Observer Plus Instruções de Operação descarregar pdf (Página 77)

Charged Aerosol Detectors

Corona Veo and Corona Veo RS

Operating Instructions Page 69

5.6.7 Digital Data Collection Rate Guidelines

When you operate the detector from a chromatography data system, you can select the

digital data collection rate in order to optimize the detector's performance. The data

collection rate is defined as the number of data points per second (Hz) that chromatography

software collects from the detector and stores as raw data.

Note the following guidelines:

• In general, define each peak by at least 20 data points. For chromatograms with co-

eluting peaks or low signal-to-noise ratios, 40 data points per peak is recommended.

• If all peaks are relatively wide, select a lower data collection rate (for example, 1.0 Hz).

This saves disk space and typically provides a faster display rate of data.

• If any peaks of interest are less than a few seconds, select a higher data collection rate

(20.0 Hz, for example). If the collection rate is too high, data files may need more disk

space and post-run analyses may require more processing time.

Tip: If you use the Chromeleon chromatography data system, data can be generated

with the Corona Veo with a maximum collection rate of 100 Hz. With the

Corona Veo RS data can be generated with a maximum collection rate of

100 Hz in Chromeleon 6.80 or 200 Hz in Chromeleon 7.

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Veo Observer Plus Instruções de Operação Página 77