5-17
IM 701240-01E
3
2
1
4
5
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7
8
9
10
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16
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18
App
Index
Horizontal and Vertical Axes
5.10 Setting the Offset
Procedure
Selecting the Channel
1.
Press
CH
.
2.
Press one of the soft keys from
CH1
to
CH16
in which the 701280 (FREQ) is
installed.
For the displayed menus when this operation is executed, see section 5.1.
Selecting Variable OFF
3.
Press the
Variable
soft key to select OFF.
Setting the Offset
4.
Press the
Offset
soft key.
5.
Turn the
jog shuttle
to set the offset.
Turn Variable OFF
Set the offset value
Note
Pressing RESET while the jog shuttle control is set to Offset sets the offset to 0.
Explanation
The 701280 (FREQ) allows you to set the center of observation (offset value) and
expand the area around the offset value for close observation. This feature allows you to
measure the fluctuation around a certain frequency.
Selectable Range of Offset
The selectable range of offset varies depending on the measurement item.
• When measuring the frequency:
±
(100 times the measurement range or 200 kHz)
• When measuring RPMs:
±
(100 times the measurement range or 50 krpm)
• When measuring RPSs:
±
(100 times the measurement range or 1000 rps)
• When measuring the period:
±
(100 times the measurement range or 50 s)
• When measuring the duty cycle:
±
(100 times the measurement range or 100%)
• When measuring the pulse width:
±
(100 times the measurement range or 50 s)
• When measuring the pulse integration:
±
(100 times the measurement range or
1.0000E+22)
• When measuring the velocity:
±
(100 times the measurement range or
1.0000E+22)
Note
•
You can change the waveform position with respect to the vertical position (the center when
zooming the waveform vertically) by changing the offset.
•
If you change the offset while waveform acquisition is stopped, the change does not take
effect. The new value takes effect the next time acquisition is started.