1. Simplified message display
2. TIME/DIV
4. Internal memory access display
7. Key lock display
6. Remote display
8. Clock display
9. AC/battery status display
10. Digital display
11. Quick settings
12. Alarm display13. Pen display14. File name display
15. Lower limit scale
16. Waveform display
17. Upper limit scale
18. Data capture bar
3. Status mark
5. USB memory access display
1. Simplified message display
Displays the operation status of the GL820.
: Appears in the start up status or when data is not being captured.
: Appears while waiting for trigger generation after measurement is started.
*: Appears when data is being captured in the internal memory.
*: Appears when data is being captured in the USB memory.
*: Capture stop processing or other cases when data is being written to the built-in
internal memory or USB memory
: Appears when the GL820 waits for you to press the Start/Stop key to stop it after data
capture.
: Appears while the data in the internal memory is being replayed.
: Appears while the data in the USB memory is being replayed.
: Appears when backup fails (e.g. when the USB memory specified as the backup
destination has been removed).
: Appears when a demo waveform is being displayed, not measurement data.
* Refer to page 3-29 for details on the data capture such as a trigger and repeat.
* Refer to page 3-25 for details on the memory used for capture.
Do not turn off the power while the simplified message is “Memory Recording” “Recording USB mem” or
“Writing Disk” (those with an asterisk (*) above). Data will become corrupt and will not be captured.
Operate the GL820 after checking that the status mark is “STOP.”
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