UNI-T UPO2102 User Manual page 13

User's Manual
(4) Function Check
Press the AUTO key, a 3 Vpp 1 kHz square wave should appear. Repeat step 3 for all channels. If the output
is not a square wave with the above descriptions, please perform the probe compensation step in the
next section.
(5) Probe Compensation
When the probe is connected to any input channel for the first time, this step might be adjusted in order
to match the probe and the input channel. Probes that are not compensated may lead to measurement
errors or mistake. Please follow the following steps:
① Set the attenuation coefficient in the probe menu and the switch on the probe to 10x, and connect
the probe to CH1. Make sure the probe's connector is properly connected with the oscilloscope. Connect
the probe's main clip and ground clip to the oscilloscope's compensating signal and ground terminal
respectively. Open CH1 and press the AUTO button.
② View the displayed waveform, as shown in Figure 4-2.
Excessive Compensation
If the displayed waveform is look like the above "Insufficient Compensation" or "Excessive
②
Compensation", use a non-metallic screwdriver to adjust the probe's variable capacitance until the
display matches the "Correct compensation" waveform.
Warning: To avoid electric shock when using the probe to measure high voltage, please ensure that the probe
insulation is in good condition and avoid physical contact with any metallic part of the probe.
 Instruments.uni-trend.com
Figure 4-1 Compensating signal and Ground terminal
Correct Compensation
Figure 4-2 Compensating Calibration of Probe
MSO/UPO2000 Seri es
Insufficient Compensation
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