GRAPHTEC gl820 User Manual page 64

CHAPTER 3 Settings and Measurement
(2)-6 Backup setting
The GL820 has a function that periodically backs up captured data (See the figure below).
This section explains how to set the data backup conditions.
Measurement input
Backup interval
Backup destination
Save folder
(2)-7 Statistical calculation setting
Two types of operation can be performed on all channels.
This section explains setting what to do in statistical calculation.
Off
Average
Max
Min
Peak
RMS
3−28
GL820
Internal memory
Setting
Sets the backup interval for captured data.
Off, 1, 2, 6, 12, 24 hours
Sets the backup destination for captured data.
USB1 Backs up data to USB memory.
This setting is available only when data is being captured to
the internal memory.
FTP Backs up data to an FTP server on the network.
* The FTP server settings must be made using the FILE menu.
(Refer to page 3-37 for details.)
Sets the folder for saving a backup file.
* This must be a folder on USB memory or an FTP server.
Example: \GRAPHTEC\20091205
* If ring capture is On, the backup function is not available.
Setting
Calculation is not performed.
Displays the simple average value of the data during
data capture.
Displays the maximum value of the data during data
capture.
Displays the minimum value of the data during data
capture.
Displays the peak value of the data during data cap-
ture.
Displays the RMS value of the data during data cap-
ture.
The calculation formula is as follows:
R.M.S =
D: data n: number of data
• Calculation results are displayed in the Digital + Statistical Calculation Display screen. Use the
keys to set All Mode. Refer to page 3-9 for details on All Mode.
• At power-on, calculation is started; The result is cleared when you press the QUIT key or the Start key
to start measurement.
Automatic backup to an FTP server
FTP server
Automatic backup
to USB memory
Description
Description
ΣD
2 /n
Ethernet
USB memory