Anemoment Data Logger 422, Руководство пользователя

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Anemoment LLC 33 Data Logger 422 User Manual
Table 20: Trigger and Sampling Rate Options Menu Command Descriptions
Menu Option Description
Output Rate This value is the number of milliseconds between data output samples. The most
recent values from the instruments are presented in the output.
If the instrument is providing data faster than the sample rate, only the most recent
value is provided.
If the instrument is providing data slower than the sample rate, then the Missing
Data options from the serial menu can be used to set what data is inserted into the
output data stream.
Analog Sample
Rate
This value is the number of milliseconds between internal analog samples.
If this value is smaller than the Output Rate, the samples are averaged until the
Output Rate time is reached.
If this value is larger than the Output Rate, the most recent analog sample is
provided.
Trigger Type The DL422 supports two trigger types: Internal and Sync.
Internal: When set to Internal the DL422 uses its internal clock to sample the data
for output.
Sync: The Sync trigger type aligns the internal clock to the edge of the Sync trigger.
This is useful for using an external time standard to synchronize multiple sampling
stations.
Storage Options Menu
The Storage Options Menu shows settings to control how the DL422 logs data onto the MicroSD
Card.
Figure 20: Storage Options Menu
Table 21: Storage Options Menu Command Descriptions
Menu Option Description
Enable
Enable the logging of data to the MicroSD Card
Storage Frequency Sets the time frequency for when a new file is started.
The frequency choices are Weekly, Daily, Hourly, Half Hourly, and Quarter Hourly.
Storage Directory
Name
This is name of the directory where the data files will be stored.
This directory is created in the root directory of the MicroSD Card
Storage File Prefix
This text string is prefixed to the time tag to create the filename.
File List on SD Card
List the filenames of the files that are in the Storage Directory.