MPO6002EDU Series Oscilloscope Guide

WisdomAugust

1 Press the desired channel key.

2 In the Channel Menu, press the Coupling softkey to select the input channel coupling:

* DC - DC coupling is useful for viewing waveforms as low as 0 Hz that do not have large DC offsets.

* AC - AC coupling is useful for viewing waveforms with large DC offsets.

* GND - When the coupling mode is "GND", the DC and AC components of the signal under test are both blocked.

When AC coupling is chosen, you cannot select 50Ω mode. This is done to prevent damage to the oscilloscope.

AC coupling places a 10 Hz high-pass filter in series with the input waveform that removes any DC offset voltage

from the waveform.

Note that Channel Coupling is independent of Trigger Coupling.

WisdomAugust

To specify channel input impedance

NOTE

When you connect an AutoProbe, self-sensing probe, the oscilloscope automatically configures the analog

input channels to the correct impedance.

1 Press the desired channel key.

2 In the Channel Menu, press Impedance; then, select either:

* 50 Ohm - matches 50 ohm cables commonly used in making high frequency measurements, and 50 ohm

active probes.

When AC coupling is selected or excessive voltage is applied to the input, the oscilloscope automatically

switches to 1M Ohm mode to prevent possible damage.

* 1M Ohm - is for use with many passive probes and for general-purpose measurements. The higher impedance

minimizes the loading effect of the oscilloscope on the device under test.

This impedance matching gives you the most accurate measurements because reflections are minimized along

the signal path.

WisdomAugust

To specify bandwidth limiting

1 Press the desired channel key.

2 In the Channel Menu, press the BW Limit softkey to enable or disable bandwidth limiting.

When bandwidth limit is on, the maximum bandwidth for the channel is approximately 20 MHz. For waveforms

with frequencies below this, turning bandwidth limit on removes unwanted high frequency noise from the waveform.

The bandwidth limit also limits the trigger signal path of any channel that has BW Limit turned on.

WisdomAugust

To change the vertical scale knob's coarse/fine adjustment setting

1 Push the channel's vertical scale knob (or press the channel key and then the

Adjust softkey in the Channel Menu) to toggle between fine and coarse adjustment of the vertical scale.

When Fine adjustment is selected, you can change the channel's vertical sensitivity in smaller increments.

The channel sensitivity remains fully calibrated when Fine is on.

The vertical scale value is displayed in the status line at the bottom of the display.

When Fine is turned off, turning the volts/division knob changes the channel sensitivity in a 1-2-5 step sequence.

WisdomAugust

Setting Analog Channel Probe Options

MPO6002EDU allows you to set the probe attenuation manually. To obtain the correct measurement results, you must

set the probe ratio properly. By default, the probe ratio is 1X.

1 Press the probe's associated channel key.

2 In the Channel Menu, press the Probe softkey to continuously or rotate the V0 knob to select the desired probe ratio.

Following attenuation factor are selectable for the connected probe.

NOTEAfter the oscilloscope auto-recognized certain probes with a fixed attenuation ratio, the probe ratio will also be auto

recognized. You do not have to set it manually.

WisdomAugust

To invert a waveform

1 Press the desired channel key.

2 In the Channel Menu, press the Invert softkey to invert the selected channel.

When Invert is selected, the voltage values of the displayed waveform are inverted. Invert affects how a channel

is displayed. However, when using basic triggers, the oscilloscope attempts to maintain the same trigger point by

changing trigger settings.

WisdomAugust

Inverting a channel also changes the result of any math function selected in the Waveform Math Menu or

any measurement.

WisdomAugust

To specify the channel units

The analog channel of this oscilloscope not only supports the common passive probe, but also the active probe.

Select the amplitude display unit for the current channel.

1 Press the probe's associated channel key.

2 In the Channel Menu, press Units; then, select:

* Volts - for a voltage probe.

* Amps - for a current probe.

Channel sensitivity, trigger level, measurement results, and math functions will reflect the measurement units you

have selected.

WisdomAugust

To specify the probe skew

When measuring time intervals in the nanoseconds (ns) range, small differences in cable length can affect

the measurement. Use Deskew to remove cable-delay errors between any two channels.

1 Probe the same point with both probes.

2 Press one of the probes associated channel key.

3 In the Channel Menu, press Deskew; then, rotate V0 knob to select the desired skew value.

Each analog channel can be adjusted ±100 ns in 1 ns increments for a total of 200 ns difference.

The skew setting is not affected by pressing [Default Setup] or [Auto Scale].

WisdomAugust

Vertical Expansion

1 Press the desired channel key.

2 In the Channel Menu, press the Vert Expand softkey to select Screen Center or Channel GND to expand or

contract the waveforms.

Channel Label

The instrument uses the channel number to mark the corresponding channel by default. For ease of use, you can also

set a label for each channel.

1 Press the desired channel key.

2 In the Channel Menu, press the Label softkey to display Label Setting Menu.

You can use the built-in label or manually input a label. Three input methods are available for you to input a label name.