5-4
IM DL850E-01EN
Trigger Mode (Trigger Mode)
Hard Disk Recording (HD RecordCondition; optional)
When measurement starts, you can record data an external hard disk that supports eSATA (external Serial ATA;
/HD0 option) or to an internal hard disk (/HD1 option).
*
The recorded data is saved to files automatically. You can
load the data that has been saved.
* Models with the /HD0 option are equipped with eSATA connectors. You need to purchase a hard disk that
supports eSATA separately. For information about supported hard disks, contact your nearest YOKOGAWA
dealer. A single DL850E/DL850EV cannot be equipped with both the /HD0 and /HD1 option.
• The DL850E/DL850EV stops acquiring waveforms after it has acquired the amount of data that corresponds
to the set record length. The maximum record length is 200 days.
• When you enable hard disk recording, the trigger mode is automatically set to On Start.
• Hard disk recording is possible for the numbers of channels, sample rates, set record lengths, and time axis
settings listed below.
Number of Channels Maximum Sample Rate Set Record Length
Time Axis Setting
1
1 MS/s
1 Mpoint or more
1 s/div or more
(the roll mode display area)
3
500 kS/s
8
200 kS/s
16
100 kS/s
Input signal
Normal measurement
Hard disk recording
Saving and loading
of waveform data
External hard disk that supports eSATA
(/HD0 option)
or
an internal hard disk
(/HD1 option)
Acquisition
memory
Loading of
waveform data
Recorded Data File (HD Recording Setup)
You can save data to a specific file name on a hard disk and add comments to it.
In hard disk recording, a folder for the current date is created on the specified drive, and the recorded-data files
are saved to that folder.
• File Name (File Name) and Comment (Comment)
You can set file names and comments. You can also use the auto naming feature to automatically assign file
names.
• File Division (Data File Divide)
You can specify the number of files that the recorded data is divided into. You can use this feature to avoid
creating large files that take time to process. You can specify the number of divisions, but the actual number
of files that will actually be saved is a number close to the specified number.
5 Waveform Acquisition