What are the steps for oscilloscope probe self-calibration?
1. Disconnect any probes or cables from the channel input connector. Make sure the instrument is running and warmed up for a while. R File menu, select Selfalignment.
2. On the Control tab, click Start Alignment.
3.In the Ralignment state (overall calibration state) field. The results of each calibration step for each input channel are displayed in the Results tab.
The steps for probe compensation adjustment are as follows:
1. Connect the oscilloscope probe to the channel and press the PRESET button on the front panel (in the settings area of the left panel). Connect the probe signal end and reference ground to the reference output on the oscilloscope panel and press Autoset. If using the probe hook tip attachment, securely attach the signal pin tip to the probe to ensure proper connection.
2. Check the shape of the displayed waveform.
3. If the waveform is incorrect, please adjust the probe.
The above two points may seem simple, but they are often overlooked by engineers. In order to make the measurement more accurate, please be sure to pay attention to inspection. These two calibration functions should be available on any oscilloscope.
Things to check before using an oscilloscope
Before using the oscilloscope for the first time or reusing it for a long time, it is necessary to conduct a simple check whether it can work and adjust the stability of the scanning circuit and the DC balance of the vertical amplification circuit. When performing quantitative tests on voltage and time, the oscilloscope must also calibrate the gain of the vertical amplification circuit and the horizontal scanning speed. The methods for checking whether the oscilloscope can work normally, and the methods for calibrating the gain of the vertical amplification circuit and the horizontal scanning speed are slightly different because the amplitude, frequency and other parameters of the calibration signal of various types of oscilloscopes are different.
