7-11
7
IM 701830-01E
Acquisition and Display
7.7 Realtime Record to the Internal Hard Disk
(Optional)
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For a description of this function, refer to page 1-14.
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Function
The data can be realtime recorded to the internal hard disk (option).
The internal hard disk contains the following drives:
Realtime: This drive is used for realtime recording. The capacity is 1.2 GB.
User:
This drive is used for saving various data. The capacity is 2 GB.
Waveform to realtime record
All of the original waveforms displayed on the screen are realtime recorded. If only the X-Y
waveform/zoom waveform is displayed (the original waveform is not displayed), then realtime
printing cannot be performed.
The possible time axis settings for realtime recording
The time axis setting varies depending on the number of channels to realtime record.
17CH or more
: 10 s/div to 100 ks/div with the sample rate set to 10 kS/s or less
(using extended logic input)
16CH (all channels) : 5 s/div to 100 ks/div with the sample rate set to 20 kS/s or less
8CH (any 8 channels) : 2 s/div to 100 ks/div with the sample rate set to 50 kS/s or less
4CH (any 4 channels) : 1 s/div to 100 ks/div with the sample rate set to 100 kS/s or less
2CH (any 2 channels) : 500 ms/div to 100 ks/div with the sample rate set to200 kS/s or less
1CH (any 1 channel) : 500 ms/div to 100 ks/div with the sample rate set to 200 kS/s or less
Setting the record time: Record Time
Records to the hard disk for the specified amount of time. This is set before executing with the
START/STOP
key. Record Time can be selected from the following.
Continuous (Continue to record until the waveform acquisition is stopped with the
START/
STOP
key), 10 s, 20 s, 30 s, 40 s, 50 s, 1 min to 9 min, 10 min to 50 min, 1 hour to 6 hour, 1 to
10 days.
The record time that can be selected varies depending on the record length and the time axis
setting. The time displayed on the lower part of the “Log Start” soft key menu is the upper limit
of the available record times. If the desired time cannot be selected, you can do the following.
• Decrease the sample rate with the T/div knob
• Set the record length to 1M or more
Store length
Select the record length from the following choices. Set this parameter when executing with
“Log Start” in the
ACQ
menu.
1 MW, 2 MW, 4 MW, 8 MW, 16 MW, 32 MW
*1
, 64 MW
*2
, 128 MW
*3
, 256 MW
*4
The time corresponding to the set record length is displayed at the lower part of the “Log Start”
soft key (for example, 3 12:34:56 is 3 days and 12 hours 34 minutes 56 seconds).
*1 Any eight channels can be used.
*2 Any four channels can be used.
*3 Any two channels can be used.
*4 Any one channel can be used.
Starting the realtime record
Following three methods can be used to start the realtime record.
• Realtime record starts by pressing the
START/STOP
key. After recording for the specified
amount of time, it stops.
• Realtime record starts by pressing the “Log Start” soft key in the
ACQ
menu. The data is
recorded for the set record length and stops.
Stopping the realtime record
If the waveform acquisition is stopped by pressing the
START/STOP
key, the recording is
also stopped even if it is within the set record time.
