Hioki MEMORY HiCORDER 8855, Instruction Manual

Page: 74 / 264

54
────────────────────────────────────────────────────
4.3 STATUS Settings (FFT)
────────────────────────────────────────────────────
4.3.3 Setting the Frequency Range
Function
display Meaning
: Move the cursor up in the selection window.
: Move the cursor down in the selection window.
: External sampling
NOTE
Frequency range
[ Hz ]
Frequency
resolution*
3
[ Hz ]
Window width*
4
Time axis
[ /DIV ]
8 M*
1
20 k 50
µ
s 5
µ
s
4 M*
1
10 k 100 µ s 10 µ s
2 M*
1
5 k 200
µ
s 20
µ
s
800 k*
1
2 k 500 µ s 50 µ s
400 k* 1 1 k 1 ms 100 µ s
200 k*
1
500 2 ms 200
µ
s
80 k* 1 200 5 ms 500 µ s
40 k 100 10 ms 1 ms
20 k 50 20 ms 2 ms
8 k 20 50 ms 5 ms
4 k 10 100 ms 10 ms
2 k 5 200 ms 20 ms
800 2 500 ms 50 ms
400 1 1 s 100 ms
200 500 m 2 s 200 ms
80 200 m 5 s 500 ms
40 100 m 10 s 1 s
20 50 m 20 s 2 s
8 *
2
20 m 50 s 5 s
4 *
2
10 m 100 s 10 s
1.33 *
2
3.33 m 5 min 30 s
667 m*
2
1.67 m 10 min 1 min
333 m*
2
0.83 m 20 min 2 min
133 m*
2
0.33 m 50 min 5 min
The frequency range (frequency axis maximum value) can be set as follows.
The frequency range corresponds to the time axis range (TIME/DIV) setting
of the memory function.
Screen: STATUS, Waveform display
Procedure 1. Use the Menu keys to display the desired screen.
2. Move the flashing cursor to the
Frequency Range
item.
3. Use the function key to make the selection.
You can also use the TIME/DIV knob to make the settings. In this case,
you can change the settings irrelevant of the position of the flashing cursor.
The anti-aliasing filter cutoff frequency is the same as the selected frequency
range.
When "EXT." was selected, octave analysis cannot be carried out.
To use external sampling, see Quick Start Section 11.1.4.
Frequency Range, Frequency Resolution, Window Width, Corresponding
Time Axis Range (when the number of FFT points is 1000)