Campbell PC208W Manual de usuario descargar pdf (Pagina 23)

Data Retrieval, Processing and Final Storage in the Lake Victoria Basin Database

PC208W Datalogger Support Software

This option is used to re-down load data from the SM192 which has already been retrieved

in a previous operation. This can be useful in case of data loss.

Dump Pointer: The Dump Pointer is an internal pointer used for keeping track of the current ‘start-of-

dump’ for module to module data dumps. It indicates the first location from where

new data should be collected. It is a function of the software to move this pointer

after each successful data collection.

Especially the Display Pointer is useful if data is lost or corrupted during processing on PC. By manually setting

back the Display Pointer (see above and the on-line help for the appropriate instructions), data files can be

re-retrieved and re-processed, provided they still exist on the SM192 Storage Module.

5.2.5 Erasing Data Files

The user can decide to erase the information stored on the SM192. This applies both to data files and datalogger

programs. However, since the storage module is put by default in ring mode, there is no need to erase data at any

time. The moment the module is full, it starts overwriting the eldest information in the unit with new one, in this way

never restricting ‘new’ information to be recorded.

If the user would decide that periodic cleaning of the storage module serves his or her purposes, for example to

avoid confusion between two different field visits, the below text presents instructions how to do this.

To activate the Erase Control screen, click the “Erase” tab at the bottom-left of the SMS Window. The below

presented screen will appear.

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Campbell PC208W Manual de usuario Pagina 23