GRAPHTEC midi LOGGER GL240 User Manual page 112

CHAPTER 3 Settings and Measurement
(6)-8 AC Line Frequency
Select the frequency of the AC line used.
Selection item
50Hz
60Hz
In this setting, select a frequency for noise removal using the digital filter. Note that no noise in the power
supply can be removed if this setting is wrong. For the the sampling speed where this unit's digital filter
becomes effective, refer to "(2)-1 Sampling interval".
(6)-9 Add checksum to file
The checksum is used to check the consistency of the data file.
If the contents of the file are changed, checksum confirmation does not match the checksum, so you can
see that the file was changed.
The checksum function adds a checksum to the data file.
Selection item
Off
On
* The checksum is also added to the backup file, ring / relay file, data save file.
For the checksum confirmation function, refer to "3.4 Setting menu explanation" - "(10) data playing menu".
The checksum is available only for GBD format.
When saving a file with software etc, checksum does not match.
(6)-10 Date/Time
Makes settings related to the GL240 clock.
The internal clock (date and time) of the GL240 can be set. Alternatively, if the Network Time setting is used,
the GL240 clock can be automatically adjusted via the network. Refer to the next section, "Network Time
Setting" for details.
<Network Time Setting>
This GL240 has the ability to synchronize the time of the clock server via Ethernet.
Perform the settings for using this function.
(1) Network Time
Enables or disables this function.
Off : This function is disabled. Time adjustment is not performed.
On : This function is enabled to perform time adjustment.
(2) Time Server
Sets the server name of a time server (NTP server) to be used.
3-70
For an area with a power supply frequency of 50 Hz
For an area with a power supply frequency of 60Hz
The checksum is added to the data file.
The checksum is not added to the data file.
Description
Description