Vaisala HydroMet Service Manual download pdf (Page 46)

Technical Description ________________________________________________________________

44 _______________________________________________________________________________

External Compact Flash Card

The MAWS system can also log data and reports on a Compact Flash

memory card, expanding the memory capacity to hundreds of

megabytes.

The external memory card is used for storing data files which have

been copied/moved from the internal log directory. The internal log

system, file format and operation is not changed, and is operated

parallel to the external card. The copy/move is carried out once a day,

typically just after midnight. In case the internal memory becomes full

earlier, the oldest files are moved to the external log module.

QML201 Logger with a Compact Flash Memory Card

The external log memory card can be hot-swapped with a new card

without any command or stopping the logging operation.

The data can be retrieved from the memory card via a terminal

connection using Zmodem protocol or by swapping the memory card

with empty one. Due to the large amount of data on the card, the

contents of the card are most conveniently read directly to a PC.

However, it is also possible to retrieve data records or complete files

remotely from the CF card.

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Vaisala HydroMet Service Manual Page 46