What oscilloscope should I use to repair the intermediate frequency furnace?

Intermediate frequency electric furnace oscilloscope.

1, the first is the debugging of the rectifier part of the intermediate frequency furnace.

2. Secondly, debugging the inverter part of the intermediate frequency furnace.

3. Finally, when the thyristor device is tested for insulation and withstand voltage, the control panel should be removed, otherwise it may cause permanent damage to the control panel.