multicomp pro MP720105, Руководство пользователя

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3.Junior User Guidebook
How to Implement the Probe Compensation
When connect the probe with any input channel for the first time, make this adjustment to
match the probe with the input channel. The probe which is not compensated or
presents a compensation deviation will result in the measuring error or mistake.
For adjusting the probe compensation, please carry out the following steps:
1. Set the attenuation coefficient of the probe in the menu as 10X and that of the switch
in the probe as 10X (see " How to Set the Probe Attenuation Coefficient " on P12), and
connect the probe with the CH1 channel. If a probe hook tip is used, ensure that it
keeps in close touch with the probe. Connect the probe tip with the signal connector
of the probe compensator and connect the reference wire clamp with the ground wire
connector of the probe connector, and then push the
Autoset button on the front
panel.
2. Check the displayed waveforms and regulate the probe till a correct compensation is
achieved (see Figure 3-7 and Figure 3-8 ).
Overcompensated Compensated correctly Under compensated
Figure 3-7 Displayed Waveforms of the Probe Compensation
3. Repeat the steps mentioned if needed.
Figure 3-8 Adjust Probe
How to Set the Probe Attenuation Coefficient
The probe has several attenuation coefficients, which will influence the vertical scale
factor of the oscilloscope.
To change or check the probe attenuation coefficient in the menu of oscilloscope:
(1) Push the function menu button of the used channels (
CH1 or CH2 button ).
(2) Select
Probe
in the bottom menu; select
Attenu
in the right menu, turn the
M
knob
toselect the proper value corresponding to the probe.
This setting will be valid all the time before it is changed again.
12