Ahlborn ALMEMO 710 - 10. Data Logger; 10.1 Measured value acquisition; output

10. Data logger
10. DATA LOGGER
Normally the function of this
measuring instrument is, using
suitable sensors, to acquire
specified measured values in a
specified chronological se-
quence and to save these to a
specified storage medium.
Since these sensors are nor-
mally already fully programmed
by the ALMEMO
®
system and
thus ready-to-operate, only the
process control needs to be con-
figured . To do this select the ´Data logger´ application by touching on tab .
The menu functions show the data logger status; settings can now be entered by
touching on the appropriate field.
Time-of-day Call up the date and time-of-day by touching on the tab in the top line.
Status Cycle, scan mode (normal, sleep, monitoring, failsafe)
Measuring operation Stopped / running, since starting time,
actual measuring duration since start
Data memory Active / inactive as per activation with save-to-memory cycle, file name
Comments text Comments text or number for measuring operation
Save-to-memory cycle Scan cycle or output cycle with saving-to-memory activated
Measuring start / stop Key, start / stop time, fixed measuring period, limit value action
Memory status Remaining memory capacity, remaining save-to-memory time,
delete memory content
Battery status Charge status, estimated remaining operating time
Start / stop, manual Manual key operation for measured value acquisition / output
10.1 Measured value acquisition / output
Measuring channel scans are needed for the following purposes - to continu-
ously acquire and monitor measured values from all measuring channels, to
record maximum / minimum values, and to detect limit value infringements,
and then to save all this data in the device. With standard sensors this is still
performed as previously at the conversion rate but with new D7 sensors a su-
perordinate scan cycle has been added. Output to a specified storage medium
or via the interface to a PC can be performed in synchrony either with this new
scan cycle or, for greater cyclic intervals, with the output cycle. Or, as an alter-
native, with some applications outputs can also be performed manually at spe-
cific times. (see Manual 6.5) The ALMEMO
®
710 incorporates as standard an
internal 8-MB flash memory. To handle larger data quantities or to transport
data quickly and easily an external memory connector with a micro-SD card
(ZA 1904-SD) can be used.
26 ALMEMO
®
710