GRAPHTEC GLT400, User Manual

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CHAPTER 4 Settings and Measurement
(3)-3 AC line filter
This is used to enable or disable the AC line filter while external sampling is enabled.
Enable this setting to enable the digital filter. When you use external sampling and measure signals with
high noise levels, set the AC line filter 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 filter (Digital filter) OFF AC line filter (Digital filter) 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
* The number of measurement channels is the number of channels for which the input settings for standard terminal,
withstand high-voltage high-precision terminal, and screwless terminal are set to other than OFF.
(3)-4 Captured data file name
This is used to select the name of a file or folder to which you want to save capture data.
Setting Description
File Type Sets the file format used to save data.
GBD: Creating a data file in Graphtec's proprietary binary format
* It is not possible to change the data.
CSV: Creating a data file in text format
Name Type Sets how a data file should be named.
Automatic: The folder and file name are automatically specified.
Example: When capturing starts at 12:34:56 on July 1 2020
<Folder name>.....200701
<File name>..........20200701-123456.GBD
* When 50 or more files are created in the folder during repeat capturing, the folder with the
serial number is created automatically.
Example: \200701\1\20200701-123456.GBD
Arbitrary: Data is captured to a file with an entered file name.
Serial number: A file is created with an arbitrary file name that has been entered, followed by a
Serial number.
Example: If the file name is "TEST"
First file: TEST_SER1.GBD
Second file: TEST_SER2.GBD
Third file: TEST_SER3.GBD
* If the same file name already exists, _CP* is added to the end of a file name to prevent
overwriting. The asterisk (*) represents a number.
Example: TEST_CP1.GBD
Captured data file name Specifies the file in the capture destination (or save destination).
The file should be saved in the folder you created. When the data files are continued to be saved in
the root folder, the data file may be not saved regardless of the memory remaining capacity due to the
limitations of the file system.