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2-35
IM 701210-05E
Explanation of Functions
2
2.4 Setting Waveform Acquisition Conditions and Display Conditions
Realtime Recording to the Internal Hard Disk (Option) <Section 7.7>
The data can be recorded in realtime to the internal hard disk (option). The stored data
can be recalled. The realtime recording area is allocated on the internal hard disk in
advance (the default value is 50% of the entire capacity of the internal hard disk). You
can set the realtime recording area in the range of 30% to 70% of the entire capacity of
the internal hard disk when you format the internal hard disk (see section 13.5).
The time axis settings, the maximum record length, and the maximum sampling rate that
allow realtime recording vary depending on the number of channels to be recorded in
realtime as follows.
Channels Used
Time Axis Range
Maximum
Maximum
Record Length
Sample Rate
18 CH or more
20 s/div to 3 day/div
25 MW
5 kS/s
12 to 17CH
20 s/div to 3 day/div
50 MW
5 kS/s
6 to 11CH
6 s/div to 3 day/div
50 MW
10 kS/s
4 to 5CH
3 s/div to 3 day/div
100 MW
20 kS/s
3CH
2 s/div to 3 day/div
250 MW
50 kS/s
2CH
1 s/div to 3 day/div
500 MW
100 kS/s
1CH
1 s/div to 3 day/div
1 GW
100 kS/s
The following two modes of realtime recording operation are available.
Single:
Starts realtime recording with the start of waveform acquisition and stops
realtime recording when the specified record length is reached.
Continue: Starts realtime recording with the start of waveform acquisition and stops
realtime recording when the specified record length is reached. This
sequence is repeated the specified number of times (count).
If you select Single, the following two trigger modes are available. If you select
Continue, only Log is valid.
Auto: Acquisition is started by pressing START. If the specified record length is
exceeded, old data is overwritten. Acquisition continues until you press STOP.
Log:
Acquisition is started by pressing START. When the specified record length is
reached, acquisition stops.
How the Internal Hard Disk (Optional) Is Used
Input signal
Copy
Acquisition
memory
Measurements other than
realtime recording
(normal measurement)
Realtime recording
Recalling of
waveform data
Saving/Loading of the waveform data
PC
Realtime recording
area
(30% to 70% of
the entire capacity)
Data storage area
SCSI, GP-IB, Ethernet,
or USB interface
Copy