Ahlborn ALMEMO 8590-9, Руководство по эксплуатации

Страница: 20 / 28

9. Measured data acquisition
20
9.2.3 Memory connector with Micro SD card
Another convenient feature for data recording without option S is provided by
the newly developed memory connector (ZA 1904-SD) with a conventional SD
memory card. The memory card is written to it via the memory connector in table
mode and in standard FAT16 format. The SD card can be formatted and its
contents can be read and deleted via any normal PC using any card reader; see
Manual 6.9.4.2. Measured data can be imported into MS-Excel or into Win-Con-
trol (the accompanying measured value software). The memory connector
works in a completely different way to the device-internal memory; this brings
both restrictions and advantages.
Functions of the SD memory connector :
Virtually unlimited memory capacity
With each new sensor configuration a new file is created.
No ring memory recording
Sleep mode
Data can be evaluated using any reader on site and elsewhere.
Very high-speed data transfer via the reader
Data recording and output in table format only
Via the ALMEMO
®
device itself only the last file can be read.
No selective data output according to date and time or by number
The memory connector with the additional memory card can be connected at
socket A2; it is recognized automatically. If the external memory is connected at
the start of any measuring operation, it will be used. However, in the course of
the measuring operation it must not be unplugged; this would cause temporarily
buffered measured values to be lost.
Before starting any measuring operation you can enter an 8-character file name
(see Ch 11). In the absence of a user-assigned file name, the default name
´
ALMEMO.001
´ or the name most recently used will be suggested automatically.
So long as the connector configuration is not altered, you can save several
measuring operations, either manually or cyclically, also with numerical assign-
ment, all in the same file.
If, however, the connector configuration has been changed since the last
measuring operation and if no new file name has been programmed, then a new
file is always created and in so doing the index in the file name extension is
automatically incremented by 1, e.g. ´
ALMEMO.002
´. Similarly, if the file name en-
tered already exists, then a new file will be created with the same file name
prefix but with a new index.