Data Sheet

4
High-Speed Response for Capturing Transient Events
- Function Details -
■ Zoom function *In memory recorder function
To make the most of the large-capacity memory, it is possible
to display a compressed waveform simultaneously with a
magnified waveform. Since the 8826 is capable of storing
a large amount of data, high-speed sampling is also possible
for waveforms with a long duration. Accordingly, while
observing the compressed image of the entire waveform, it is
also possible to observe the magnified details of desired parts.
Compressed display of a part of the entire waveform is also
possible.
■ Clock input for external sampling *In memory recorder function
The sampling rate for the memory recorder can be controlled by
the timing of an external clock signal. This is useful for example to
collect data synchronized to the running cycle of an engine.
Recording length using 32 channels
Segmentation into 3 blocks
Segmentation into 127 blocks
Segmentation
In the standard configuration, the 8826 can store a total of 16
mega-words, and with memory expansion 64 mega-words,
using internal solid-state memory. This provides ample capacity
to store data for all 32 channels. The table at right shows
possible recording times, according to the time axis setting and
the number of channels in use. A reduction in the number of
channels prolongs the recording time.
Large memory capacity allows long-term
recording of high- speed data
Time
Sampling period
Input waveform
Input voltage
Sampling controlled by external
clock signal
Maximum frequency 500kHz
Time axis
Sampling
period
4-channel setting
4 MW/channel 40,000 DIV
32-channel setting
500 kW/channel 5,000 DIV
100μs/DIV 1μs 4 s 0.5 s
200μs/DIV 2μs 8 s 1 s
500μs/DIV 5μs 20 s 2.5 s
1ms/DIV 10μs 40 s 5 s
2ms/DIV 20μs 1 m 20 s 10 s
5ms/DIV 50μs 3 m 20 s 25 s
10ms/DIV 100μs 6 m 40 s 50 s
20ms/DIV 200μs 13 m 20 s 1 m 40 s
50ms/DIV 500μs 33 m 20 s 4 m 10 s
100ms/DIV 1ms 1 h 6 m 40 s 8 m 20 s
200ms/DIV 2ms 2 h 13 m 20 s 16 m 40 s
500ms/DIV 5ms 5 h 33 m 20 s 41 m 40 s
1s/DIV 10ms 11 h 6 m 40 s 1 h 23 m 20 s
2s/DIV 20ms 22 h 13 m 20 s 2 h 46 m 40 s
5s/DIV 50ms 2 days 7 h 33 m 20 s 6 h 56 m 40 s
10s/DIV 100ms 4 days 15 h 6 m 40 s 13 h 53 m 20 s
30s/DIV 300ms 13 days 21 h 20 m 1 day 17 h 40 m
1min/DIV 0.6s 27 days 18 h 40 m 3 days 11 h 20 m
2min/DIV 1.2s 55 days 13 h 20 m 6 days 22 h 40 m
5min/DIV 3.0s 138 days 21 h 20 m 17 days 8 h 40 m
* The table applies to the standard memory configuration. When the optional
MEMORY BOARD 9599 is installed, recording times are extended by a
factor of 4 (from 16 mega-words/channel, 160,000 divisions for 4 channels
to 2 mega-words/channel, 20,000 divisions for 32 channels).
Recording Time on internal memory
Output waveform
Time
Sampling period
Input voltage
Input voltage
Input waveform
Input voltage
A/D
conversion
A/D
conversion
Insulation
Insulation
Write on memory
Thermal printer
Function outline of memory recorder
■ Memory segmentation function
When using the memory recorder function, the data memory can
be divided into a maximum of 255 blocks. Data can be written
sequentially to the memory blocks, and the waveform in a reference
block and any other block can be superimposed and compared.
* In the standard memory configuration (16 mega-words), the maximum
number of blocks using the 32 channel setting is 127. When the memory
expansion is installed, or when the channel setting is 4 to 16, the
maximum number of blocks is 255.
■ Manipulation using the cursor
Use of the two cursors on the screen enables the user to read the time
difference and potential difference.