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CHAPTER 3 Settings and Measurement
(2)-5 AC line lter
This is used to enable or disable or disables the AC line lter while external sampling is enabled.
Enable this setting to enable the digital lter. When you use external sampling and measure signals with
high noise levels, set the AC line lter to ON.
The shortest interval is displayed under the settings.
Shortest interval
The shortest interval is as shown in the following table:
Number of Measuring
Channels *
1
Shortest interval
AC line lter (Digital lter) OFF AC line lter (Digital lter) ON
1CH 10ms 200ms
2CH 20ms 500ms
3CH to 5CH 50ms 1s
6CH to 10CH 100ms 1s
11CH to 20CH 200ms 2s
21CH to 50CH 500ms 5s
51CH to 100CH 1s 10s
101CH to 200CH 2s 20s
*1 Number of Measuring Channels is number of channels for which the input settings of the standard terminal,
withstand high-voltage high-precision terminal or screwless terminal/remote terminal are set to other than OFF.
(The channels of the GS sensor and terminal/adapter as well as wireless sensor and remote terminal are not
included.)
(2)-6 Backup setting
The GL840 has a function that periodically backs up captured data.
(See the gure below)
GL840
FTP server
Ethernet
The data is backed up automatically
to the SD CARD in internal memory (SD1)
or SD CARD2 slot.
Automatic backup to an FTP server
SD CARD
x GB
Lock
Measurement input
Setting Description
Backup interval Sets the backup interval for captured data.
Off, 1, 2, 6, 12, 24 hours, or Off, By le
* Refer to “(4)- 5 OTHER settings” to select each le.
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