Automatic Calibration
The automatic correction program can quickly make the oscilloscope reach the
best condition to obtain the most accurate measurement value. You can
execute this program at any time, but if the ambient temperature variation
range reaches or exceeds 5℃, you must execute this program.
To perform automatic correction, disconnect all probes or wires from the input
connector. Then, press the System key. Press the menu selection key F4 to
enter the next page, select F3 "Auto calibration", the screen will prompt
"Disconnect all inputs Press < F3 >to execute auto calibration Otherwise
press the Return key". If you need to perform the auto calibration, please
disconnect all inputs, perform automatic correction after confirming readiness.