Getting Started
24
Note:
Probe Attenuation
Probes are available with various attenuation factors which affect the vertical scale of the signal. The Probe Check
function verifies that the probe attenuation option matches the attenuation of the probe.
Press CH 1 once to open the channel menu. Select the probe option that matches the attenuation of the probe.
The default setting for the Probe option is 1 X.
Verify that the attenuation switch on the probe matches the Probe option in the oscilloscope. Switch settings are 1 X
and 10 X.
Probe Compensation
Before taking any measurements using a probe, verify the compensation of the probe and adjust it to match the channel
inputs.
To match your probe to the input channel:
1.
Set the
channel’s
probe attenuation to 10X.
–
Press the
CH #
key corresponding to the channel the probe is connected to.
–
Use the softkeys to navigate to page 1.
–
Use the softkeys to select
Probe
.
–
Use the
Intensity Adjust
knob to select 10X.
2.
Attach the probe tip to the
Compensation Signal Output Terminal 3 V
(
Cal
) connector and the reference lead to
the
Probe Ground terminal
connector.
–
Press the
Auto Setup
key to display the square wave.
3.
Check the shape of the displayed waveform.
Undercompensated
Correctly Compensated
Overcompensated
Figure 2.5
Probe Compensation
4.
If necessary, adjust your prob
e’s
compensation trimmer pot.
