Vaisala Hydromet Data Collection Platform - Manual (Page 104)

User's Guide ______________________________________________________________________
102 __________________________________________________________________M210784EN-E
Using External Memory Card
The external memory card is used to store log files that have been
copied or moved from the internal log directory. The data can be
retrieved from the external memory card via terminal connection or by
switching the memory card with an empty one.
The external memory card can be removed from the QML logger for
data retrieval without interruptions to operations. The logger copies
data from the internal log directory to the memory card daily at
midnight, the default time is 00:00:30. Data is being written when the
LED on the logger cover to the left of the external memory card is
constantly on.
When a new memory card is inserted into the QML logger, the software
checks that the card is ready for use. The status of the memory card is
indicated by a LED.
Table 21 on page 102 describes the different
blinking sequences and the card conditions they indicate.
NOTE If the CompactFlash memory card has not been formatted, it must be
formatted before use.
In MAWS versions 6.00 and later, you are recommended to format the
card in a Windows PC. The file system to use is FAT (not FAT32).
Also, do not select the quick format option.
To format the CF card in the QML logger, insert it into the CF slot of
the QML logger. Give the EXTFS ERASE command. After the card
has been formatted, you can remove it from the slot.
CAUTION The memory card must not be removed from the QML logger while
data is being written, or the data may be lost. By default, data is
transmitted to the memory card each day at 00:00:30.
Table 21 LED Blinking Sequences and Card Status Options
Blinking Sequence Card Status
Long-long Card is OK.
Constantly on Data is being written.
Short-short-short for 5 seconds Card is unformatted or corrupted.