Application Examples
Using Autorange to Examine a Series of Test Points
If you have a machine that is malfunctioning, you may need to
fi
nd the frequency
and RMS voltage of several test points, and compare these values to ideal values.
You are not able to access front-panel controls since you need to use both hands
when probing test points that are dif
fi
cult to physically reach.
1.
Push the
1
(channel 1 menu) button.
2.
Push
Probe
►
Voltage
►
Attenuation
. Chose the attenuation of the probe
attached to channel 1 from the pop-out selectable list of values by turning
and pushing the
Multipurpose
knob.
3.
Push the
Autoset
button for more than 1.5 seconds to activate autoranging,
and select the
Vertical and Horizontal
option.
4.
Push the
Measure
button to see the Measure Menu.
5.
Push
Ch1
.
6.
Turn the
Multipurpose
knob to select
Frequency
.
7.
Push
Ch2
.
8.
Turn the
Multipurpose
knob to select
Cycle RMS
.
9.
Attach the probe tip and reference lead to the
fi
rst test point. Read the
frequency and cycle RMS measurements from the oscilloscope display and
compare these to the ideal values.
10.
Repeat the preceding step for each test point, until you
fi
nd the malfunctioning
component.
NOTE.
When Autorange is active, each time you move the probe to another test
point, the oscilloscope readjusts the horizontal scale, the vertical scale, and the
trigger level, to give you a useful display.
Taking Cursor Measurements
You can use the cursors to quickly take time and amplitude measurements on
a waveform.
Measuring Ring Frequency
and Amplitude
To measure the ring frequency at the rising edge of a signal, follow these steps:
1.
Push the
Cursor
front-panel button to see the Cursor Menu.
2.
Push the
Type
side-menu button. A pop-out menu should appear showing a
scroll-able list of the available cursor types.
3.
Turn the
Multipurpose
knob to highlight
Time
.
4.
Push the
Multipurpose
knob to select
Time
.
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